New Industry Products

Flex Power Modules announces miniature DC-DC converters for industrial applications

February 19, 2020 by Flex Power Modules

Flex Power Modules highlights the PUA-A, PUC-B and PUB-M miniature DC-DC converters for industrial applications.

Flex Power Modules introduces new families of miniature DC-DC converters for industrial applications: the PUA-A, PUC-B, and PUB-M. The new devices are all isolating converters providing output power of up to 1W, with no minimum load required.


  • No minimum load required
  • Isolation voltages of up to 6000V
  • Rugged, reliable and standards-compliant
  • Broad range of devices to meet specific application requirements



Efficiency is typically 84% (PUA-A), 80% (PUC-B) and 81% (PUB-M) – all at full load. Input-to-output isolation voltage is 2000V (PUA-A), 6000V (PUC-B) and 3000V (PUB-M).

The new converters deliver the reliability and ruggedness needed for the harsh environments found in industrial applications and have mean time between failures (MTBF) rated at 17.9 million hours (Mh) for the PUB-M, 15Mh for the PUC-B and 13.1Mh for the PUA-A.

The devices are safety compliant to EN/UL 62368-1, and Flex Power Modules is an ISO 9001/14001 certified supplier.

Olle Hellgren, Director of Product Management and Business Development at Flex Power Modules, said: “These new DC-DC converters further expand our family of products for the industrial sector, all of which achieve high standards of performance, efficiency, and reliability. We offer our industrial customers a diverse range of solutions – meaning they can find the right product, whatever their application.”

The converters have a wide operating temperature range of -40°C to 100°C (PUA-A and PUC-B) and -40°C to 110°C (PUB-M). They include output short-circuit protection, to avoid damage.

The devices are all provided in industry-standard packages. The PUA-A is a SIP4 device, measuring 11.5 x 6 x 10mm (0.45 x 0.23 x 0.36in). The PUC-B is housed in a SIP7 package, measuring 19.7 x 7.1 x 11.5mm (0.78 x 0.28 x 0.45in), while the PUB-M is a surface-mount device (SMD) with dimensions of 12.75 x 11.2 x 6.6mm (0.5 x 0.441 x 0.26in) for the single-output variant, and 15.25 x 11.2 x 6.6mm (0.6 x 0.441 x 0.26in) for the dual-output version.

For more information, visit Flex Cross-Industry Technologies Power



PUB-M series

PUA-A series

PUC-B series


About Flex Power Modules

Flex Power Modules, a division of Flex, designs and manufactures scalable power supply solutions that improve the operational efficiencies of an advanced data center, IT information and communications networks. Flex Power Modules also offers a wide product range for the Industrial/Transportation sector. Flex Power Modules’ products provide a complete onboard system solution for cloud, storage and server applications and address customer challenges while delivering superior quality, cost, and performance at scale. For more information, visit Flex Power Modules.


About Flex

Flex is the Sketch-to-Scale® solutions provider that designs and builds Intelligent Products for a Connected World™. With approximately 200,000 professionals across 30 countries, Flex provides innovative design, engineering, manufacturing, real-time supply chain insight, and logistics services to companies of all sizes in various industries and end-markets. For more information, visit Flex.