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PC104 75 Watt DC-DC Power Supply HE104-75W

HE104-75W: 75W PC104 Power Supply

Manufacturer: Tri-M Technologies



75 Watt High Efficiency PC104 Power Supply

For applications requiring a DC-DC PC104 power converter that supplies up to 75W of power, Tri-M offers the HE104-75W. It is ideal for use on 12VDC and 24VDC mobile applications where power from a DC source (input) needs to be converted (output) to match the applications power requirements - generally an embedded computer.

Efficiency of the HE is over 90% - the higher efficiency means less heat is generated - and it is designed to operate in extended temperature applications where temperatures can be between -40°C and +85°C.

Input voltage spikes that go beyond the input voltage window (9VDC to 40VDC) are managed through transient suppressors that restrict the input voltage, while maintaining normal output power operation.

The HE104-75W is designed to minimize any generated noise or interference, allowing it to be used for airborne or ground vehicles that encounter EMI or RFI.


  • High efficiency
  • Extended temperature operation
  • Rugged design
  • Transient supression
  • Clean and filtered power for the PC/104 bus


Electrical Specifications

  • 5V output 15A
  • 12V output 3A
  • -12V output 0.5A

Input voltage range

  • 6V to 40V DC

Performance Characteristics

  • Load Regulation (5V output) < 60mV
  • Line Regulation (5V output) 40mV
  • Output temp. drift (5V output) < 40mV
  • Switching Frequency 312kHz
  • Output Ripple (5V output) < 20mV
  • Conducted Susceptibility (5V output) > 57db
  • Efficiency Up to 90%
  • Temperature range -40° to 85°C

Environmental & Mechanical

  • Temperature Range* -40° to 85°C
  • Form Factor PC/104
  • Dimensions (excluding PC/104 pins) 3.55”W x 3.75”L x 0.6”H
  • Weight 6.08oz / 172.37g


File Type Description
he104-75w_spec.pdf Spec Sheet HE104-75W Spec Sheet
he104-75w_man.pdf User Guide HE104-75W Manual

Ordering Info

Part Number Description
HE104-75W-N-PBF PC/104, In 6-40VDC, Out 75 Watt, +5V@15A, +12V@3A, -12V@500mA, (-40 to +85°C), No Bus
HE104-75W-PBF PC/104, In 6-40VDC, Out 75 Watt, +5V@15A, +12V@3A, -12V@500mA, (-40 to +85°C), ISA Bus
HE105+75W-PBF PC/104, In 6-40VDC, Out 75 Watt, +5V@15A, +12V@3A, -12V@500mA, (-40 to +85°C), ISA Bus, PCI Bus
Accessories and Options
CH Humiseal conformal coating and epoxy
CON-HE104-75W-KIT Replacement Connector Kit for HE104-75W power supplies
CS Silicon conformal coating and epoxy
CU Urethane conformal coating and epoxy
FON Forced On Option
NS Non-Stack Through Bus, modifies N
 Orders can be placed by phone, e-mail, or through the Webstore


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Toll Free: 800.665.5600 (North America)
Direct: 604.814.5069
Fax: 888.831.5149

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Tri-M Technologies Inc.
208 – 31510 Gill Avenue
Mission, BC, Canada  V4S 0A1

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