New PKU3500S and PKU5500S Features Input Voltage Range of 9 to 36V and 18 to 75V Respectively

Press Release Summary:

  • Provides reliable, high performance and rugged DC-DC solutions
  • Delivers up to 15A and 50W of output power and achieve up to 91% efficiency
  • Reliable when exposed to dust, moisture, severe vibration and other harsh environmental conditions

Original Press Release:

Flex Power Modules Announces Encapsulated Sixteenth-brick DC-DC Converters for Industrial/Railway and Telecom Applications

  • Encapsulated sixteenth-brick package for harsh environments
  • 9 to 36V and 18 to 75V inputs ideal for industrial/railway and telecom applications
  • Output up to 50W, with 3.3V, 5V, 12V, 15V and 24V outputs available
  • High efficiency of up to 91%

Flex Power Modules introduces the PKU-S series of DC-DC power modules for the industrial/railway and telecom sectors, to provide highly reliable, high performance and rugged DC-DC solutions.

The modules are housed in the industry-standard sixteenth-brick form factor (35.3 x 25 x 10.4mm / 1.39 x 0.984 x 0.41 in), with sealed and encapsulated packaging. This ensures their reliability when exposed to dust, moisture, severe vibration and other harsh environmental conditions.

There are two variants: the PKU3500S series has an input voltage range of 9 to 36V, and the PKU5500S operates from 18 to 75V. The converters can deliver up to 15A and 50W of output power and achieve up to 91% efficiency. Input-to-output isolation is 2250VDC.

The series achieves high levels of reliability, with mean time between failures (MTBF) of up to 8 million hours. The new modules meet safety requirements according to the latest IEC/EN/UL62368-1 standard.

Olle Hellgren, Director of Product Management and Business Development at Flex Power Modules, said: “Further strengthening our product offering for harsh environments such as those found in the industrial/railway and telecoms sectors, the PKU-S family enables our customers to benefit from the high power density offered by the sixteenth-brick footprint, while also offering the environmental and physical protection of these encapsulated versions”.

The PKU3000S and PKU5000S families are available now for sampling and volume production requirements.

About Flex Power Modules

Flex Power Modules, a division of Flex (NASDAQ:FLEX), designs and manufactures scalable power supply solutions that improve the operational efficiencies of 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.

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 or follow us on Twitter @Flexintl. Flex – Live Smarter™

Contact for editorial information:

Nayl D’Souza

Account Director




Contact for company information:

Tuuli Waern

Technical Marketing Manager

Flex Power Modules


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