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Cosel DC/DC Converters

Precision Power Modules for Telecommunications, Industrial, and Specialty Applications

Cosel offers an extensive lineup of DC/DC converters in various input/output configurations and standard module sizes—designed for robust performance in telecom, industrial, railway, and embedded systems.

Product Families & Specifications

1. High-Voltage Brick Modules (DBS / DCS Series)

  • Rated input voltage: 200–435 VDC
  • Output power up to 1 400 W (Full brick format)
  • Features include adjustable output from near 0 V, remote ON/OFF, power-good signal, thermal/current protection, and N+1 redundancy capability

2. Mid-Voltage Brick Modules (CHS Series)

  • Input ranges: 18–36 VDC or 36–76 VDC
  • Output power: ~250–350 W in telecom-standard half/quarter-brick size
  • High efficiency (~94.5 %), Ethernet/PMBus control, remote ON/OFF, thermal protection

3. Low-Voltage Brick Modules (MGFS/MGFW/MHFS/MHFW...)

  • Input ranges: 4.5–76 VDC across multiple variants
  • Power levels: roughly 1.5–80 W
  • Compact 1″×1″ POL-style or quarter-brick modules for telecom, industrial, and ITE markets

4. PCB-Mount Converters (SU/SUC/SUT/SUS Series)

  • Input ranges: 4.5–76 VDC
  • Power levels: 1.5–30 W in DIP24 / SMD24 packages
  • Features adjustable output via potentiometer, remote ON/OFF, and optional conformal coating

Core Advantages

  • Compact Industry-Standard Form Factors: Brick and POL packages for seamless integration
  • Wide Input Ranges: Supports modern distributed power schemes with flexible voltage compatibility
  • Intelligent Controls: Remote ON/OFF, PMBus, and output adjustments enhance design flexibility
  • Robust Protection Features: Includes over-voltage, over-current, thermal, and reverse-polarity protections
  • Conduction-Cooled & Fanless Design: Particularly for brick modules; supported in chipset converters

Ideal Application Areas

  • Telecommunications & data infrastructure
  • Industrial automation & control systems
  • Railway/subway onboard power systems
  • Embedded computing, storage, and ITE applications
  • Power-sensitive environments needing small, efficient solution

Looking to integrate Cosel DC/DC converters into your next design? Contact FORTEC Switzerland – our specialists are ready to support your project with technical specs and sample planning.


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