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Transphorm and TDK-Lambda Announce Expansion of AC-DC GaN Power Module Family

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  • The 12V and 48V 500W power supplies are the second and third products in TDK’s high-efficiency PFH series

  • GaN devices offer 38% higher power density than silicon-based solutions

GOLETA, California (USA), March 16, 2022–(BUSINESS WIRE)–Transphorm, Inc. (Nasdaq: TGAN), a pioneer and global provider of highly reliable, high-performance gallium nitride (GaN) power conversion products, today confirmed that the leading manufacturer of TDK-Lambda power supplies, a TDK group company, has expanded its GaN-based PFH500F product line. The PFH500F-12 and PFH500F-48 are the second and third modules in TDK’s line of 500-watt AC/DC power supplies. Each offers 12V and 48V power outputs. As with its predecessor, the 28V GaN-based PFH500F-28, these latest power supplies offer several benefits of GaN for end-use applications, including increased 6% in efficiency in a 13% smaller device package. Together, these advantages result in a power density improvement of 38 percent compared to the 12 V and 48 V silicon-based modules PFE500SA-12 and PFE500SA-48, established by TDK-Lambda.

The PFH500F series uses 72mΩ, 8×8 PQFN GaN FETs (TP65H070LDG) from Transphorm. The high power density of these power transistors allowed TDK to use thin motherboards to cool GaN power supplies. In return, TDK was able to produce a slimmer, sealed power module capable of supporting a variety of broad industrial applications operating in harsh environments. These applications include commercial (COTS) power supplies, custom fanless power supplies, 5G communications, lasers, digital signage/displays, signage, and more.

Designed by the team at TDK-Lambda Americas in Dallas, TX, the 12V and 48V PFH500F modules use a bridgeless totem pole PFC configuration. While the main 28V GaN power supply took over three years to develop, TDK’s engineering team was able to adapt their knowledge to produce these latest models in a year.

“TDK’s decision to launch the PFH500F product line as a GaN line was the result of careful consideration of our customers’ wants and needs,” said Jin He, vice president of engineering for TDK-Lambda Americas. “What our customers need are reliable power systems.” for use in robust applications that cannot afford an outage. By using Transphorm’s GaN, we can confidently offer this in ever smaller and more powerful power supplies that can also spur end system innovation.”

TDK-Lambda’s PFH500F-12 and PFH500F-48 power modules offer the following advantages over the silicon-based PFE500SA-12 and PFE500SA-48:

  • Energy efficiency: 92%, which represents an increase of 6%

  • Power density: > 100 W/in^3, which is a 38% increase

  • PMBus™ monitoring and programming (read/write)

  • Board size reduction: from 116.8 x 61 (mm) to 101.6 x 61 (mm), which is a reduction of 13%

  • Reduced size of external capacitive components


The PFH500F series modules will be on display at Transphorm’s booth 825 at APEC 2022 in Houston, Texas later this month.

About TDK Corporation

TDK Corporation is a world leader in electronic solutions for the intelligent society, headquartered in Tokyo, Japan. Building on its mastery of materials science, TDK embraces social change by resolutely staying at the forefront of technological development and consciously “attracting tomorrow”. It was founded in 1935 to market ferrite, an essential material for electronic and magnetic products. TDK’s comprehensive innovation driven portfolio includes passive components such as aluminum and ceramic electrolytic and film capacitors, as well as magnetic, high-frequency, piezoelectric and protection components. The product range also includes sensors and sensor systems such as temperature and pressure sensors, magnetic sensors, and MEMS.” In addition, TDK offers power supplies and power devices, magnetic heads, and more. These products are sold under the TDK product brands. , EPCOS, InvenSense, Micronas, Tronics and TDK-Lambda TDK focuses on demanding markets in automotive, industrial and consumer electronics as well as information and communication technology The company has a network of design and manufacturing locations and offices sales in Asia, Europe, and North and South America In fiscal 2021, TDK had total sales of $13.3 billion and employed approximately 129,000 people worldwide.

About TDK Lambda Corporation

TDK-Lambda Corporation is an innovative and trusted leader and global provider of highly reliable power conversion products for industrial and medical equipment around the world. TDK-Lambda Corporation is ready to respond quickly to any customer’s needs with R&D, manufacturing, sales and service locations in five key geographic regions, namely Japan, EMEA, Americas, China and ASEAN.

For more details, visit www.jp.lambda.tdk.com/en/.

About Transphorm Inc.

Transphorm, Inc., a world leader in the GaN revolution, designs and manufactures high-performance, high-reliability GaN semiconductors for high-voltage power conversion applications. With one of the largest Power GaN IP portfolios of more than 1,000 owned or licensed patents, Transphorm produces the industry’s first JEDEC and AEC-Q101 certified high-voltage GaN semiconductor devices. Transphorm’s vertically integrated device business approach enables innovation at every stage of development: design, manufacturing, devices, and application support. Transphorm’s innovations push power electronics beyond the limits of silicon, achieving over 99% efficiency, 40% higher power density and 20% lower system costs. Transphorm is headquartered in Goleta, California with manufacturing facilities in Goleta and Aizu, Japan. Visit www.transphormusa.com for more information. Follow us on Twitter @transphormusa and WeChat @Transphorm_GaN.

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View the original version on businesswire.com: https://www.businesswire.com/news/home/20220315005449/en/


heather ailara
211 Communications
[email protected]

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