Miniature DC-DC Converters for Industrial Applications By Flex

  • Rugged, reliable and standards-compliant
  • Isolation voltages of up to 6000V

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, and are reliable and rugged enough to withstand harsh industrial environments.


  • Mean time between failures (MTBF): 13.1 million hours (Mh)
  • Efficiency: 84%
  • Input-to-output isolation voltage: 2000V
  • Operating temperature range: -40°C to 100°C

The PUA-A is a SIP4 device, measuring 11.5 x 6 x 10mm (0.45 x 0.23 x 0.36in).


  • Mean time between failures (MTBF): 15Mh
  • Efficiency: 80%
  • Input-to-output isolation voltage: 6000V
  • Operating temperature range: -40°C to 100°C

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)


  • Mean time between failures (MTBF): 17.9Mh
  • Efficiency: 81%
  • Input-to-output isolation voltage: 3000V
  • Operating temperature range: -40°C to 110°C

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.

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.”

All devices include output short-circuit protection, to avoid damage and are safety compliant to EN/UL 62368-1. Flex Power Modules is an ISO 9001/14001 certified supplier.

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