LaFox, IL, March 14, 2024 – Richardson Electronics, Ltd. (NASDAQ: RELL), a global provider of engineered solutions for renewable energy and other power management applications, has reached a significant milestone with the shipment and installation of over 50,000 patented ULTRA3000^® pitch energy modules  (“PEMs”). PEMs store and manage energy required to adjust the blade angles to ensure effective operation of the wind turbine. This achievement marks the largest retrofit of ultracapacitors for pitch energy modules in North America and is a major step toward the Company’s growth goals within the renewable energy market.

Richardson Electronics’ ULTRA3000^® is a drop-in replacement for lead acid batteries used in electric pitch systems within wind turbines. Lead-acid batteries are toxic to the environment if not properly disposed. In addition, the improved life span of the patented ULTRA3000^® reduces maintenance requirements and significantly reduces the environmental impact associated with lead acid batteries. To put it into perspective, the Company estimates the impact of installing 50,000 PEMs is equivalent to:

• Eliminating the demand for approximately 250,000 toxic lead-acid batteries that can cause environmental issues
• Saving an estimated 3,300 tons of CO₂ production
• Saving owner-operators millions of dollars in maintenance and battery disposal costs over the life of the wind turbine

“This milestone is a testament to our team’s dedication and hard work. Our design, manufacturing, and quality approach allowed us to reach this milestone in a very short amount of time. As we celebrate this achievement, we are excited to expand outside of North America with new products designed and engineered for other wind turbine platforms throughout the world,” stated Greg Peloquin, Executive Vice President and General Manager of Power & Microwave Technologies and Green Energy Solutions groups.

Richardson Electronics will showcase its ultracapacitor pitch energy modules and other product solutions for wind turbine platforms on September 24 to 27, 2024, at the WindEnergy Hamburg Event (Hamburg, Germany). With approximately 40,000 attendees from over 100 countries, this show is one of the world’s biggest and most important wind business platforms for exchanging news and views and building networks.

About Richardson Electronics, Ltd.

Richardson Electronics, Ltd. is a leading global manufacturer of engineered solutions, power grid and microwave tubes, and related consumables; power conversion and RF and microwave components, including green energy solutions; high-value replacement parts, tubes, and service training for diagnostic imaging equipment; and customized display solutions. More than 60% of our products are manufactured in LaFox, Illinois, Marlborough, Massachusetts, or Donaueschingen, Germany, or by one of our manufacturing partners throughout the world. All our partners manufacture to our strict specifications and adhere to our supplier terms and conditions. We serve customers in the alternative energy, healthcare, aviation, broadcast, communications, industrial, marine, medical, military, scientific, and semiconductor markets. The Company’s strategy is to provide specialized technical expertise and “engineered solutions” based on our core engineering and manufacturing capabilities. The Company provides solutions and adds value through design-in support, systems integration, prototype design and manufacturing, testing, logistics, and aftermarket technical service and repair through its global infrastructure. More information is available at www.rell.com.

Richardson Electronics common stock trades on the NASDAQ Global Select Market under the ticker symbol RELL.

About Richardson Electronics – Green Energy Solutions

Richardson Electronics Green Energy Solutions combines our key technology partners and engineered solutions capabilities to design and manufacture key products for the fast-growing energy storage market and power management applications. As a designer, manufacturer, technology partner, and authorized distributor, GES’s strategy is to provide specialized technical expertise and engineered solutions using our core design engineering and manufacturing capabilities on a global basis. We provide solutions and add value through design-in support, systems integration, prototype design and manufacturing, testing, logistics, and aftermarket technical service and repair—all through our existing global infrastructure. GES focuses on products for numerous green energy applications such as wind, solar, hydrogen, and electric vehicles and other power management applications that support green solutions such as synthetic diamond manufacturing. For more information, visit us at https://www.rell.com/greenenergysolutions/.

About Richardson Electronics – Power & Microwave Technologie

For over 75 years, Richardson Electronics has been your industry-leading global provider of engineered solutions, RF & microwave, and power products. The Power & Microwave Technologies group continues this legacy and complements it with new products from the world’s most innovative technology partners. Richardson Electronics’ Power & Microwave Technologies group focuses on what we do best: identify and design disruptive technologies, introduce new products on a global basis, develop solutions for our customers, and provide exceptional worldwide support. As a global company, we provide solutions and add value through design-in support, systems integration, prototype design and manufacturing, testing, logistics, and aftermarket technical service and repair—all through our existing global infrastructure. More information is available at rellpower.com | relltubes.com | rellaser.com

Brings Increased Capabilities to the Company’s Portfolio of RF and Microwave Products

LaFox, IL – January 24, 2024 – Richardson Electronics, Ltd. (NASDAQ: RELL) announced today a global agreement has been reached with Microwave Components, Inc. (MCI).

Microwave Components, Inc. of Dracut, Massachusetts is a Veteran-owned, U.S. company that has been a leading manufacturer of custom miniature electronic air coils since 1978. MCI coils are manufactured to meet its customers’ specifications. MCI’s High Q, miniature air coils are used in a variety of RF and Microwave applications all of which require high performance, reliable and repeatable inductors.

This agreement supports Richardson Electronics’ strategy to partner with technology leaders in passive components and that are synergistic with the Company’s various active technology partners for both component designs and engineered solutions.

“The agreement with MCI expands our portfolio with products that are critical to our customer base,” said Greg Peloquin, Executive Vice President of Richardson Electronics’ Power and Microwave Technologies and Green Energy Solutions groups. “Knowing that MCI shares our commitment to leading technology, quality and customer satisfaction makes it a perfect fit for our Company growth strategy.”

“Microwave Components, Inc., is very excited to begin this partnership with Richardson Electronics, Ltd.  As MCI continues to grow, we are not only looking to expand our footprint within North America, but internationally as well.  RELL’s global sales channel enables MCI to provide international customers with the same hands-on, customer-focused experience that our domestic customers have come to expect when designing in and purchasing MCI’s miniature air core inductors.  RELL’s large RF and microwave components product portfolio, coupled with their commitment to customers, made this partnership a perfect fit for MCI,” said Robin Nazarian, CEO of Microwave Components, Inc.

Richardson Electronics provides solutions and adds value through design-in support, systems integration, prototype design and manufacturing, testing, logistics, and aftermarket technical service and repair on a global basis.

About Richardson Electronics – Power & Microwave Technologies

For over 75 years, Richardson Electronics has been your industry-leading global provider of engineered solutions, RF & microwave, and power products. The Power & Microwave Technologies group continues this legacy and complements it with new products from the world’s most innovative technology partners. Richardson Electronics’ Power & Microwave Technologies group focuses on what we do best: identify and design disruptive technologies, introduce new products on a global basis, develop solutions for our customers, and provide exceptional worldwide support. As a global company, we provide solutions and add value through design-in support, systems integration, prototype design and manufacturing, testing, logistics, and aftermarket technical service and repair—all through our existing global infrastructure. More information is available at www.rellpower.com.

About Richardson Electronics, Ltd.

Richardson Electronics, Ltd. is a leading global manufacturer of engineered solutions, power grid and microwave tubes, and related consumables; power conversion and RF and microwave components including green energy solutions; high-value replacement parts, tubes, and service training for diagnostic imaging equipment; and customized display solutions. More than 60% of our products are manufactured in LaFox, Illinois, Marlborough, Massachusetts, or Donaueschingen, Germany, or by one of our manufacturing partners throughout the world.  All our partners manufacture to our strict specifications and per our supplier code of conduct. We serve customers in the alternative energy, healthcare, aviation, broadcast, communications, industrial, marine, medical, military, scientific, and semiconductor markets. The Company’s strategy is to provide specialized technical expertise and “engineered solutions” based on our core engineering and manufacturing capabilities. The Company provides solutions and adds value through design-in support, systems integration, prototype design and manufacturing, testing, logistics, and aftermarket technical service and repair through its global infrastructure. More information is available at www.rell.com.

Richardson Electronics common stock trades on the NASDAQ Global Select Market under the ticker symbol RELL.

About Microwave Components, Inc.

Microwave Components, Inc. is a leading manufacturer of miniature air coils.  MCI was incorporated in 1978 and is located in Dracut, Massachusetts.  MCI provides custom coils primarily for signal conditioning in Hi-rel broadband applications.  MCI recognizes the responsibility associated with products for these applications and supplies products on time, with repeatable performance.  Most importantly, MCI will NEVER end of life (EOL) any product for convenience.  As long as the raw materials are available, MCI will build the custom part number, regardless of the last time it was ordered or manufactured.  More information is available at www.mcicoils.com.

New partnership expands Company’s growth opportunities within the Renewable Energy market

LaFox, IL, December 20, 2023 – Richardson Electronics, Ltd. (NASDAQ: RELL), a global provider of engineered solutions for renewable energy applications, is pleased to announce a partnership with Integrated Power Services (IPS) in North America. This partnership allows IPS to supply and install Richardson’s patented ULTRA3000^® pitch energy module to key customers in North America.

The IPS Renewables Business provides single-source capabilities for fleets operating wind turbines during warranty and after warranty for the asset life of the machines. IPS engineers repair, replace, and remanufacture to minimize downtime and support run-time commitments. IPS is a distributor for key OEMs, with local, regional, and national inventories, plus a network of used and surplus equipment suppliers.

Richardson Electronics’ ULTRA3000^® is a drop-in replacement for lead acid batteries used in electric pitch systems within wind turbines. With its true plug-and-play technology, owners can replace one battery at a time on an as-needed basis or retrofit the entire pitch system. Richardson Electronics, Ltd. is a world leader in pitch energy modules and other products that support green energy power management applications.

Greg Peloquin, Executive Vice President and General Manager of Power & Microwave Technologies and Green Energy Solutions groups, stated, “We are confident this partnership will expand growth opportunities and help bring our growing portfolio of new power management products to the wind turbine market. Our customer base and market share continue to grow for our products, and having a partner like IPS to bring these products to market to our ever-growing list of customers is key to our short and long-term growth.

“Richardson is well-respected in the Renewables sector. This new partnership underscores IPS’s unwavering commitment to consistently address our customers’ requirements and provide effective solutions to reduce downtime,” stated Jason McDonald, IPS Senior Vice President of Renewables Business. “We are optimistic that this partnership will open avenues for growth and facilitate the introduction of our expanding range of innovative products to the wind turbine market.”

About Richardson Electronics, Ltd.

Richardson Electronics, Ltd. is a leading global manufacturer of engineered solutions, power grid and microwave tubes, and related consumables; power conversion and RF and microwave components, including green energy solutions; high-value replacement parts, tubes, and service training for diagnostic imaging equipment; and customized display solutions. More than 60% of our products are manufactured in LaFox, Illinois, Marlborough, Massachusetts, or Donaueschingen, Germany, or by one of our manufacturing partners throughout the world. All our partners manufacture to our strict specifications and adhere to our supplier terms and conditions. We serve customers in the alternative energy, healthcare, aviation, broadcast, communications, industrial, marine, medical, military, scientific, and semiconductor markets. The Company’s strategy is to provide specialized technical expertise and “engineered solutions” based on our core engineering and manufacturing capabilities. The Company provides solutions and adds value through design-in support, systems integration, prototype design and manufacturing, testing, logistics, and aftermarket technical service and repair through its global infrastructure. More information is available at www.rell.com.

Richardson Electronics common stock trades on the NASDAQ Global Select Market under the ticker symbol RELL.

About Richardson Electronics – Green Energy Solutions

Richardson Electronics Green Energy Solutions combines our key technology partners and engineered solutions capabilities to design and manufacture key products for the fast-growing energy storage market and power management applications. As a designer, manufacturer, technology partner, and authorized distributor, GES’s strategy is to provide specialized technical expertise and engineered solutions using our core design engineering and manufacturing capabilities on a global basis. We provide solutions and add value through design-in support, systems integration, prototype design and manufacturing, testing, logistics, and aftermarket technical service and repair—all through our existing global infrastructure. GES focuses on products for numerous green energy applications such as wind, solar, hydrogen, and electric vehicles and other power management applications that support green solutions such as synthetic diamond manufacturing. For more information, visit us at https://www.rell.com/greenenergysolutions/.

About Richardson Electronics – Power & Microwave Technologies

For over 75 years, Richardson Electronics has been your industry-leading global provider of engineered solutions, RF & microwave, and power products. The Power & Microwave Technologies group continues this legacy and complements it with new products from the world’s most innovative technology partners. Richardson Electronics’ Power & Microwave Technologies group focuses on what we do best: identify and design disruptive technologies, introduce new products on a global basis, develop solutions for our customers, and provide exceptional worldwide support. As a global company, we provide solutions and add value through design-in support, systems integration, prototype design and manufacturing, testing, logistics, and aftermarket technical service and repair—all through our existing global infrastructure. More information is available at rellpower.com | relltubes.com | rellaser.com.

About Integrated Power Services (IPS)

Headquartered in Greenville, South Carolina, IPS has the industry’s largest network of locations, with service centers, distribution centers, and field service offices across North America, combining industry-specific experience with comprehensive engineering resources to revolutionize reliability for customers. For more information, visit www.ips.us.

LaFox, IL, October 2, 2023 – Richardson Electronics, Ltd. (NASDAQ: RELL), a global provider of engineered solutions for renewable energy, is pleased to announce the issuance of U.S. Patent No. 11,764,002 (the “’002 Patent”). The ’002 Patent is a result of Richardson’s innovative technology using ultracapacitors embedded in its ULTRAGEN3000™ generator start module or GSM. The ULTRAGEN3000™ is a compact GSM designed for installation in any orientation, allowing flexible module placement within any generator set housing. The Company’s patented technology enables a true drop-in replacement for lead acid batteries in engine start applications without the need to rewire or procure additional components.

Ultracapacitor-based energy storage solutions have significantly enhanced reliability. Ultracapacitors, unlike batteries, provide dependable and consistent energy even in extreme temperatures, providing better reliability for critical applications such as backup generator systems. This new patent adds to the Company’s patented energy storage solutions portfolio and enhances growth opportunities within the Green Energy Solutions business segment.

“This patent is another important milestone toward our goal of strengthening our Company’s intellectual property portfolio. Our engineering team continues to design and develop unique products that surpass our customers’ expectations with cost-savings, reliability, and efficiency,” stated Richardson’s Greg Peloquin, Executive Vice-President Power and Microwave Technologies and Green Energy Solutions Groups.

About Richardson Electronics, Ltd.

Richardson Electronics, Ltd. is a leading global manufacturer of engineered solutions, green energy products, power grid and microwave tubes and related consumables; power conversion and RF and microwave components; high-value replacement parts, tubes, and service training for diagnostic imaging equipment; and customized display solutions. More than 60% of our products are manufactured in LaFox, Illinois, Marlborough, Massachusetts, or Donaueschingen, Germany, or by one of our manufacturing partners throughout the world. All of our partners manufacture to our strict specifications and per our supplier code of conduct. We serve customers in the alternative energy, healthcare, aviation, broadcast, communications, industrial, marine, medical, military, scientific and semiconductor markets. The Company’s strategy is to provide specialized technical expertise and “engineered solutions” based on our core engineering and manufacturing capabilities. The Company provides solutions and adds value through design-in support, systems integration, prototype design and manufacturing, testing, logistics and aftermarket technical service and repair through its global infrastructure. More information is available at www.rell.com.

Richardson Electronics, Ltd. common stock trades on the NASDAQ Global Select Market under the ticker symbol RELL.

About Richardson Electronics – Green Energy Solutions

Richardson Electronics Green Energy Solutions combines our key technology partners and engineered solutions capabilities to design and manufacture key products for the fast-growing energy storage market and power management applications. As a designer, manufacturer, technology partner and authorized distributor, GES’s strategy is to provide specialized technical expertise and engineered solutions using our core design engineering and manufacturing capabilities on a global basis. We provide solutions and add value through design-in support, systems integration, prototype design and manufacturing, testing, logistics and aftermarket technical service and repair—all through our existing global infrastructure. GES’s focus is on products for numerous green energy applications such as wind, solar, hydrogen and electric vehicles, and other power management applications that support green solutions such as synthetic diamond manufacturing. For more information, visit us at: https://www.rell.com/business-units/green-energy-solutions/.

LaFox, IL, May 24, 2023 – Richardson Electronics, Ltd. (Nasdaq: RELL) announced today that its ULTRA3000^® Pitch Energy Module (PEM) has been selected by GE Vernova to be featured on their recently launched online marketplace for onshore wind parts and essentials. GE’s marketplace specializes in onshore wind turbine parts, including parts for other OEM wind turbines. Richardson Electronics has worked with GE to make this product available to the owner/operators of GE wind turbines in North America.

The marketplace will feature key products for wind turbines from world-leading technology companies including Richardson Electronics’ ULTRA3000^® and will be the go-to web site for GE wind turbine owner/operators. With more than 100,000 items available for purchase supporting both GE and other OEM onshore wind turbines, the store will enable wind farm owners to purchase all the spare parts and wind farm essentials they need in one simple transaction.

Richardson Electronics’ ULTRA3000^® is a drop-in replacement for lead acid batteries used in electric pitch systems. With its true plug-and-play technology, owners can replace one battery at a time on an as needed basis or retrofit the entire pitch system. With over 37,000 PEMs installed, Richardson Electronics’ ULTRA3000^® has become the GE owner/operators’ number one choice for ultracapacitor based pitch systems. With the increased reliability of ultracapacitors over lead acid batteries, owners can reduce nuisance battery faults and increase wind turbine availability.

“We are very excited about the new agreement with GE. We are enjoying huge success with the ULTRA3000^® PEM and this agreement will nearly double our served available market in North America. We look forward to working with GE to bring this product and others to an expanded market. As we expand our portfolio of products designed to support wind turbine customers, we will work with GE as a partner,” said Greg Peloquin, Executive Vice President and General Manager Power Microwave and Green Energy Solutions Group.

GE Vernova announced at the CLEANPOWER Conference that it’s expanded Onshore Wind Online Shop also helps customers to improve cashflow, with flexible credit options, digital invoicing, and the ability to purchase from multiple suppliers all in one location with a single purchase order. To register and learn more, please visit: shop.gerenewableenergy.com.

The Richardson Electronics’ team will be exhibiting in booth (#813) at the CLEANPOWER Conference and Exhibition through May 25, at the Ernest N. Morial Convention Center in New Orleans, Louisiana. The Company’s patented ultracapacitor-based pitch energy module, the ULTRA3000^®, will also be on display.

About Richardson Electronics – Green Energy Solutions

Richardson Electronics Green Energy Solutions combines our key technology partners and engineered solutions capabilities to design and manufacture key products for the fast-growing energy storage market and power management applications. As a designer, manufacturer, technology partner and authorized distributor, GES’s strategy is to provide specialized technical expertise and engineered solutions using our core design engineering and manufacturing capabilities on a global basis. We provide solutions and add value through design-in support, systems integration, prototype design and manufacturing, testing, logistics and aftermarket technical service and repair—all through our existing global infrastructure. GES’s focus is on products for numerous green energy applications such as wind, solar, hydrogen and electric vehicles, and other power management applications that support green solutions such as synthetic diamond manufacturing. For more information, visit our webpage.

About Richardson Electronics – Power & Microwave Technologies

For over 75 years, Richardson Electronics has been your industry-leading global provider of engineered solutions, RF & microwave, and power products. The Power & Microwave Technologies group continues this legacy and complements it with new products from the world’s most innovative technology partners. Richardson Electronics’ Power & Microwave Technologies group focuses on what we do best: identify and design disruptive technologies, introduce new products on a global basis, develop solutions for our customers, and provide exceptional worldwide support. As a global company, we provide solutions and add value through design-in support, systems integration, prototype design and manufacturing, testing, logistics, and aftermarket technical service and repair—all through our existing global infrastructure. More information is available at www.rellpower.com.

About Richardson Electronics, Ltd.

Richardson Electronics, Ltd. is a leading global manufacturer of engineered solutions, power grid and microwave tubes, and related consumables; power conversion and RF and microwave components including green energy solutions; high-value replacement parts, tubes, and service training for diagnostic imaging equipment; and customized display solutions. More than 60% of our products are manufactured in LaFox, Illinois, Marlborough, Massachusetts, or Donaueschingen, Germany, or by one of our manufacturing partners throughout the world.  All our partners manufacture to our strict specifications and adhere to our supplier terms and conditions.  We serve customers in the alternative energy, healthcare, aviation, broadcast, communications, industrial, marine, medical, military, scientific, and semiconductor markets. The Company’s strategy is to provide specialized technical expertise and “engineered solutions” based on our core engineering and manufacturing capabilities. The Company provides solutions and adds value through design-in support, systems integration, prototype design and manufacturing, testing, logistics, and aftermarket technical service and repair through its global infrastructure. More information is available at www.rell.com.

Richardson Electronics common stock trades on the NASDAQ Global Select Market under the ticker symbol RELL.

LaFox, IL | May 15, 2023 –Richardson Electronics, Ltd. (NASDAQ: RELL), a global provider of engineered solutions for renewable energy, is pleased to announce the new patent pending ULTRAUPS3000™ Hybrid Ultracapacitor Uninterrupted Power Supply (UPS) for wind turbine control systems and other industrial applications where reliable low voltage ride through and safe shut down are safety critical. This is the latest patent pending product adding to the Company’s growing portfolio of engineered solutions.

The ULTRAUPS3000™ reflects the ingenuity and evolution of its market-leading solutions. The ULTRAUPS3000™ is designed for operation in harsh environments unlike other energy storage solutions such as lead acid or lithium-based UPS systems. With the wider operating temperature of Richardson Electronics hybrid ultracapacitor solution, the product will help solve issues related to the short life of other technologies.

Greg Peloquin, Executive Vice President, and General Manager of Power Microwave and Green Energy Solutions Group stated, “This is another major achievement from our team in our ever-increasing portfolio of power management products.  The potential of the ULTRAUPS3000™   meeting the needs of our customers in the wind turbine industry and many other industries is exponential. This patent reinforces our commitment to innovation and engineered solutions.”

The new ULTRAUPS3000™ will be on display in the Richardson Electronics’ booth (#813) at the CLEANPOWER Conference and Exhibition on May 22 – 25, at the Ernest N. Morial Convention Center in New Orleans, Louisiana. The Company’s patented ultracapacitor-based pitch energy module, the ULTRA3000^®, will also be on display.

About Richardson Electronics – Green Energy Solutions

Richardson Electronics Green Energy Solutions combines our key technology partners and engineered solutions capabilities to design and manufacture key products for the fast-growing energy storage market and power management applications. As a designer, manufacturer, technology partner and authorized distributor, GES’s strategy is to provide specialized technical expertise and engineered solutions using our core design engineering and manufacturing capabilities on a global basis. We provide solutions and add value through design-in support, systems integration, prototype design and manufacturing, testing, logistics and aftermarket technical service and repair—all through our existing global infrastructure. GES’s focus is on products for numerous green energy applications such as wind, solar, hydrogen and electric vehicles, and other power management applications that support green solutions such as synthetic diamond manufacturing. For more information, visit our webpage.

About Richardson Electronics – Power & Microwave Technologies

For over 75 years, Richardson Electronics has been your industry-leading global provider of engineered solutions, RF & microwave, and power products. The Power & Microwave Technologies group continues this legacy and complements it with new products from the world’s most innovative technology partners. Richardson Electronics’ Power & Microwave Technologies group focuses on what we do best: identify and design disruptive technologies, introduce new products on a global basis, develop solutions for our customers, and provide exceptional worldwide support. As a global company, we provide solutions and add value through design-in support, systems integration, prototype design and manufacturing, testing, logistics, and aftermarket technical service and repair—all through our existing global infrastructure. More information is available at www.rellpower.com.

About Richardson Electronics, Ltd.

Richardson Electronics, Ltd. is a leading global manufacturer of engineered solutions, power grid and microwave tubes, and related consumables; power conversion and RF and microwave components including green energy solutions; high-value replacement parts, tubes, and service training for diagnostic imaging equipment; and customized display solutions. More than 60% of our products are manufactured in LaFox, Illinois, Marlborough, Massachusetts, or Donaueschingen, Germany, or by one of our manufacturing partners throughout the world.  All our partners manufacture to our strict specifications and per our supplier code of conduct.  We serve customers in the alternative energy, healthcare, aviation, broadcast, communications, industrial, marine, medical, military, scientific, and semiconductor markets. The Company’s strategy is to provide specialized technical expertise and “engineered solutions” based on our core engineering and manufacturing capabilities. The Company provides solutions and adds value through design-in support, systems integration, prototype design and manufacturing, testing, logistics, and aftermarket technical service and repair through its global infrastructure. More information is available at www.rell.com.

Richardson Electronics common stock trades on the NASDAQ Global Select Market under the ticker symbol RELL.

LaFox, IL, May 3, 2023– Richardson Electronics, Ltd. (NASDAQ: RELL) announces its new ULTRAPEM™ line, a series of ultracapacitor-based modules that replace lead acid batteries within various OEM wind turbine platforms utilizing electric pitch systems. These new products add to the Company’s portfolio of patented energy storage solutions and capitalize on growth opportunities within the Green Energy Solutions business segment.

The new ultracapacitor-based energy storage series consists of pitch energy modules that operate at greater voltage than 100 VDC. These plug-and-play modules are easy to install, increase uptime of wind turbines, and reduce labor costs. Features of the ULTRAPEM series include:

• Estimated lifetime of 15+ Years
• Drop-in replacement for batteries for pitch systems up to 500 VDC
• Wide operating temperature from -40°C to 65°C
• No hazardous chemicals

“The introduction of the ULTRAPEM series expands our wind turbine product range and customer base. It’s exciting to see our team continue to listen to our customers and deliver engineered solutions that have a major impact on applications within the power management and green energy solutions markets, ” said Greg Peloquin, Executive Vice President of Richardson Electronics’ Power & Microwave Technologies, and Green Energy Solutions group.

The new ULTRAPEM series will be on display in the Richardson Electronics’ booth (#813) at the CLEANPOWER Conference and Exhibition on May 22 – 25, at the Ernest N. Morial Convention Center in New Orleans, Louisiana. The company’s patented ultracapacitor-based pitch energy module, the ULTRA3000^®, will also be on display.

About Richardson Electronics, Ltd.

Richardson Electronics, Ltd. is a leading global manufacturer of engineered solutions, power grid and microwave tubes, and related consumables; power conversion and RF and microwave components; high-value replacement parts, tubes, and service training for diagnostic imaging equipment; and customized display solutions. More than 60% of our products are manufactured in LaFox, Illinois, Marlborough, Massachusetts, or Donaueschingen, Germany, or by one of our manufacturing partners throughout the world.  All our partners manufacture to our strict specifications and per our supplier code of conduct.  We serve customers in the alternative energy, healthcare, aviation, broadcast, communications, industrial, marine, medical, military, scientific, and semiconductor markets. The Company’s strategy is to provide specialized technical expertise and “engineered solutions” based on our core engineering and manufacturing capabilities. The Company provides solutions and adds value through design-in support, systems integration, prototype design and manufacturing, testing, logistics, and aftermarket technical service and repair through its global infrastructure. More information is available at www.rell.com.

Richardson Electronics common stock trades on the NASDAQ Global Select Market under the ticker symbol RELL.

About Richardson Electronics – Green Energy Solutions

Richardson Electronics Green Energy Solutions combines our key technology partners and engineered solutions capabilities to design and manufacture key products for the fast-growing energy storage market and power management applications. As a designer, manufacturer, technology partner and authorized distributor, GES’s strategy is to provide specialized technical expertise and engineered solutions using our core design engineering and manufacturing capabilities on a global basis. We provide solutions and add value through design-in support, systems integration, prototype design and manufacturing, testing, logistics and aftermarket technical service and repair—all through our existing global infrastructure. GES’s focus is on products for numerous green energy applications such as wind, solar, hydrogen and electric vehicles, and other power management applications that support green solutions such as synthetic diamond manufacturing. For more information, visit our Green Energy Solutions page.

About Richardson Electronics – Power & Microwave Technologies

For over 75 years, Richardson Electronics has been your industry-leading global provider of engineered solutions, RF & microwave, and power products. With the launch of the Power & Microwave Technologies group, we continue this legacy and complement it with new products from the world’s most innovative technology partners. Richardson Electronics’ Power & Microwave Technologies group focuses on what we do best: identify and design disruptive technologies, introduce new products on a global basis, develop solutions for our customers, and provide exceptional worldwide support. As a global company, we provide solutions and add value through design-in support, systems integration, prototype design and manufacturing, testing, logistics, and aftermarket technical service and repair—all through our existing global infrastructure. More information is available at www.rellpower.com.

Adding Increased Capabilities to their Power Management and Green Energy Solutions Portfolio of Products

LaFox, IL – March 30, 2023 – Richardson Electronics, Ltd. (NASDAQ: RELL) announced today a technology partnership agreement with VINATech. VINATech products enhance the Company’s current technology offerings and expand the product range, driving growth opportunities within the Power Management and Green Energy Solutions business segments.

Established in 1999, VINATech designs and manufactures energy storage ultracapacitors as well as hybrid lithium capacitors. These ultracapacitors are excellent for numerous applications including smart-grids, solar power, automatic meter reading (AMR), automotive, UPS, solid state drives, medical, automated guidance vehicles, and lighting. VINATech is UL, IATF 16949: 2016, and ISO-14001 certified.

VINATech has four types of ultracapacitors:

• Hy-Cap Neo Ultracapacitors Available in 2.7V and 3.0V, these capacitors are designed for extreme environments and are ideal for automotive vehicles, communication equipment, IoT, and industrial equipment.
• Hy-Cap Ultracapacitor Modules Highly customizable modules that can be optimized including capacitance, voltage, current, size, enclosure protection level, terminal type, and balancing circuits. Available as a PCB assembly.
• Hy-Cap Ultracapacitor 2 Series Modules Come in two rated voltages, 6.0V and 5.4V, and are ideal for smart meters or black box products.
• Hybrid Capacitors Available in a higher voltage and lower self-discharge. These capacitors are 3.8V with an ultra-low leakage current.

VINATech’s ultracapacitor products are a welcome addition to our Power Management and Green Energy Solutions portfolio,” said Greg Peloquin, Executive Vice President of Richardson Electronics’ Power & Microwave Technologies and Green Energy Solutions groups. “As a world leader in capacitor design, VINATech’s devices have low ESR and high current capabilities and are available in medium cell and radial cell types. We look to VINATech to be a key technology partner for our engineered solutions and component designs.”

“We are beyond thrilled for this partnership between VINATech and Richardson Electronics. Pairing our ultracapacitor and lithium capacitor technologies with their top tier sales and marketing capabilities will provide greater support to our customers worldwide,” said Do Kyung Sung, President & CEO of VINATech.

About Richardson Electronics – Green Energy Solutions

Richardson Electronics Green Energy Solutions combines our key technology partners and engineered solutions capabilities to design and manufacture key products for the fast-growing energy storage market and power management applications. As a designer, manufacturer, technology partner and authorized distributor, GES’s strategy is to provide specialized technical expertise and engineered solutions using our core design engineering and manufacturing capabilities on a global basis. We provide solutions and add value through design-in support, systems integration, prototype design and manufacturing, testing, logistics and aftermarket technical service and repair—all through our existing global infrastructure. GES’s focus is on products for numerous green energy applications such as wind, solar, hydrogen and electric vehicles, and other power management applications that support green solutions such as synthetic diamond manufacturing. For more information, visit us at: www.rell.com/green-energy-solutions.com

About Richardson Electronics – Power & Microwave Technologies

For over 75 years, Richardson Electronics has been your industry-leading global provider of engineered solutions, RF & microwave, and power products. The Power & Microwave Technologies group continues this legacy and complements it with new products from the world’s most innovative technology partners. Richardson Electronics’ Power & Microwave Technologies group focuses on what we do best: identify and design disruptive technologies, introduce new products on a global basis, develop solutions for our customers, and provide exceptional worldwide support. As a global company, we provide solutions and add value through design-in support, systems integration, prototype design and manufacturing, testing, logistics, and aftermarket technical service and repair—all through our existing global infrastructure. More information is available at www.rellpower.com.

About Richardson Electronics, Ltd.

Richardson Electronics, Ltd. is a leading global manufacturer of engineered solutions, power grid and microwave tubes, and related consumables; power conversion and RF and microwave components including green energy solutions; high-value replacement parts, tubes, and service training for diagnostic imaging equipment; and customized display solutions. More than 60% of our products are manufactured in LaFox, Illinois, Marlborough, Massachusetts, or Donaueschingen, Germany, or by one of our manufacturing partners throughout the world.  All our partners manufacture to our strict specifications and per our supplier code of conduct. We serve customers in the alternative energy, healthcare, aviation, broadcast, communications, industrial, marine, medical, military, scientific, and semiconductor markets. The Company’s strategy is to provide specialized technical expertise and “engineered solutions” based on our core engineering and manufacturing capabilities. The Company provides solutions and adds value through design-in support, systems integration, prototype design and manufacturing, testing, logistics, and aftermarket technical service and repair through its global infrastructure. More information is available at www.rell.com.

Richardson Electronics common stock trades on the NASDAQ Global Select Market under the ticker symbol RELL.

About VINATech

VINATech established in 1999 has developed and produced Ultracapacitor and Fuel Cell Membrane Electrode Assembly and is equipped with smart factory-based production facilities with the highest level of automation in order to ensure the highest quality level.

Newly Issued Patent to Support the Continued Replacement of Wind Turbine Batteries with Ultracapacitor Module Technology

LaFox, IL | March 22, 2023 –Richardson Electronics, Ltd. (NASDAQ: RELL), a global provider of engineered solutions for renewable energy, is pleased to announce the issuance of U.S. Patent No. 11,624,348 (the ’348 Patent). The ’348 Patent is the third patent covering the Company’s Pitch Energy module with additional U.S. and foreign patents still pending.

Richardson’s most recent patent reflects the ingenuity in its market-leading solution, the ULTRA3000^® Pitch Energy Module (PEM). The ULTRA3000^® is a drop-in replacement for lead acid batteries within electric pitch systems. With its true plug-and-play technology, owners can replace one battery at a time on an as needed basis or retrofit the entire pitch system. With over 35,000 PEMs installed, Richardson Electronics’ ULTRA3000^® has become the owner operators’ number one choice for ultracapacitor based pitch systems. With the increased reliability of ultracapacitors over lead acid batteries owners can reduce nuisance battery faults and increase wind turbine availability.

Greg Peloquin, Executive Vice President, and General Manager of Power Microwave and Green Energy Solutions Group, stated, “Richardson continues to innovate in the renewable energy market, devoting substantial engineering expertise and intellectual property in expanding its patent portfolio. RELL will continue to add technology partners, engineered solutions, and key customers to this fast-growing market.”

About Richardson Electronics – Green Energy Solutions

Richardson Electronics Green Energy Solutions combines our key technology partners and engineered solutions capabilities to design and manufacture key products for the fast-growing energy storage market and power management applications. As a designer, manufacturer, technology partner and authorized distributor, GES’s strategy is to provide specialized technical expertise and engineered solutions using our core design engineering and manufacturing capabilities on a global basis. We provide solutions and add value through design-in support, systems integration, prototype design and manufacturing, testing, logistics and aftermarket technical service and repair—all through our existing global infrastructure. GES’s focus is on products for numerous green energy applications such as wind, solar, hydrogen and electric vehicles, and other power management applications that support green solutions such as synthetic diamond manufacturing. For more information, visit us at: www.rell.com/green-energy-solutions

About Richardson Electronics – Power & Microwave Technologies

For over 75 years, Richardson Electronics has been your industry-leading global provider of engineered solutions, RF & microwave, and power products. The Power & Microwave Technologies group continues this legacy and complements it with new products from the world’s most innovative technology partners. Richardson Electronics’ Power & Microwave Technologies group focuses on what we do best: identify and design disruptive technologies, introduce new products on a global basis, develop solutions for our customers, and provide exceptional worldwide support. As a global company, we provide solutions and add value through design-in support, systems integration, prototype design and manufacturing, testing, logistics, and aftermarket technical service and repair—all through our existing global infrastructure. More information is available at www.rellpower.com.

About Richardson Electronics, Ltd.

Richardson Electronics, Ltd. is a leading global manufacturer of engineered solutions, power grid and microwave tubes, and related consumables; power conversion and RF and microwave components; high-value replacement parts, tubes, and service training for diagnostic imaging equipment; and customized display solutions. More than 60% of our products are manufactured in LaFox, Illinois, Marlborough, Massachusetts, or Donaueschingen, Germany, or by one of our manufacturing partners throughout the world.  All our partners manufacture to our strict specifications and per our supplier code of conduct.  We serve customers in the alternative energy, healthcare, aviation, broadcast, communications, industrial, marine, medical, military, scientific, and semiconductor markets. The Company’s strategy is to provide specialized technical expertise and “engineered solutions” based on our core engineering and manufacturing capabilities. The Company provides solutions and adds value through design-in support, systems integration, prototype design and manufacturing, testing, logistics, and aftermarket technical service and repair through its global infrastructure. More information is available at www.rell.com.

Richardson Electronics common stock trades on the NASDAQ Global Select Market under the ticker symbol RELL.

LaFox, IL and Torrance, CA, March 15, 2023 – Richardson Electronics, Ltd. (Nasdaq: RELL) and Navitas Semiconductor (Nasdaq: NVTS) announced today a new distribution partnership for next-gen silicon carbide (SiC) power semiconductors for the Americas.

Richardson Electronics, Ltd. will focus on Navitas’ world-leading GeneSiC™ power MOSFETs and MPS™ diodes that are rated from 650 V – 6.5 kV. Patented trench-assisted planar-gate technology delivers the lowest R_DS(ON) at high temperature and the lowest energy losses at high speeds. This enables unprecedented, industry-leading levels of performance, robustness, and quality.

With a broad portfolio, these devices are ideal for a number of applications including but not limited to renewable energy and storage, motor drives, induction heating and welding, battery charging, automotive, and high voltage DC-DC conversion.

Features:

• G3R™ technology for +15 to 18V gate drives
• Superior Q_G x R_DS(ON) figure of merit
• Lowest R_DS(ON) variation with temperature
• Low gate charge and device capacitances
• Broad portfolio, with over 100 parts
• Easy to parallel for high-power applications

Benefits:

• Cooler, smaller, lighter circuits and systems
• Superior robustness, quality, and reliability
• Fast time-to-prototype, and fast time-to-market

“For years Richardson has developed an excellent portfolio of power management components and engineered solutions. Adding Navitas as a key technology partner is an excellent addition to supporting our customers’ needs,” said Greg Peloquin, Executive Vice President and General Manager Power Microwave and Green Energy Solutions Group. “Their products are world class and­­ provide disruptive technology to our customers looking for superb hard-switching components with excellent lead-times.”

“Navitas’ GeneSiC^TM product line-up of SiC MOSFETs and MPS rectifiers have proven themselves as the new industry benchmark in performance, robustness, and reliability the world over. Navitas recognizes Richardson’s long-term partnerships, technical knowledge and robust customer support to American customers who demand high end power semiconductor products” said Dr. Ranbir Singh, Executive Vice President at Navitas. “GeneSiC MOSFETs and MPS diodes are a perfect fit for Richardson’s market strongholds of renewable energy, industrial, medical, transportation, and energy storage.”

About Richardson Electronics – Power & Microwave Technologies

For over 75 years, Richardson Electronics has been your industry-leading global provider of engineered solutions, RF & microwave, and power products. The Power & Microwave Technologies group continues this legacy and complements it with new products from the world’s most innovative technology partners. Richardson Electronics’ Power & Microwave Technologies group focuses on what we do best: identify and design disruptive technologies, introduce new products on a global basis, develop solutions for our customers, and provide exceptional worldwide support. As a global company, we provide solutions and add value through design-in support, systems integration, prototype design and manufacturing, testing, logistics, and aftermarket technical service and repair—all through our existing global infrastructure. More information is available at www.rellpower.com.

About Richardson Electronics, Ltd.

Richardson Electronics, Ltd. is a leading global manufacturer of engineered solutions, power grid and microwave tubes, and related consumables; power conversion and RF and microwave components; high-value replacement parts, tubes, and service training for diagnostic imaging equipment; and customized display solutions. More than 60% of our products are manufactured in LaFox, Illinois, Marlborough, Massachusetts, or Donaueschingen, Germany, or by one of our manufacturing partners throughout the world.  All our partners manufacture to our strict specifications and per our supplier code of conduct.  We serve customers in the alternative energy, healthcare, aviation, broadcast, communications, industrial, marine, medical, military, scientific, and semiconductor markets. The Company’s strategy is to provide specialized technical expertise and “engineered solutions” based on our core engineering and manufacturing capabilities. The Company provides solutions and adds value through design-in support, systems integration, prototype design and manufacturing, testing, logistics, and aftermarket technical service and repair through its global infrastructure. More information is available at www.rell.com.

Richardson Electronics common stock trades on the NASDAQ Global Select Market under the ticker symbol RELL.

About Navitas

Navitas Semiconductor (Nasdaq: NVTS) is the only pure-play, next-generation power-semiconductor company, founded in 2014. GaNFast™ power ICs integrate gallium nitride (GaN) power and drive, with control, sensing, and protection to enable faster charging, higher power density, and greater energy savings. Complementary GeneSiC™ power devices are optimized high-power, high-voltage, and high-reliability silicon carbide (SiC) solutions. Focus markets include mobile, consumer, data center, EV, solar, wind, smart grid, and industrial. Over 185 Navitas patents are issued or pending. Over 70 million GaN units have been shipped, and Navitas introduced the industry’s first and only 20-year warranty. Navitas was the world’s first semiconductor company to be CarbonNeutral®-certified.

Navitas, GaNFast, GaNSense, GeneSiC, and the Navitas logo are trademarks or registered trademarks of Navitas Semiconductor and affiliates. All other brands, product names, and marks are or may be trademarks or registered trademarks used to identify products or services of their respective owners.