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HE104+DX: PC104-Plus 100 Watt DC-DC Embedded Power Supply

HE104+DX: 108W PC104-Plus Power Supply

Manufacturer: Tri-M Technologies



108 Watt High Efficiency PC104+ Embedded Power Supply

The HE104+DX is designed for low noise embedded computer systems, has a wide input range of 6-40V (>6:1) and is ideal for battery or unregulated input applications. The HE104+DX is specifically designed for vehicular applications and has heavy-duty transient suppressors (9000W on both main and secondary inputs) that clamp the input voltage to safe levels, while maintaining normal power supply operation.

The HE104+DX is an embedded power supply with state-of-the-art Mosfet based design that provides outstanding line and load regulation with efficiencies up to 90 percent. Organic Semiconductor Capacitors provide filtering that reduces ripple noises below 20mV. The low noise design makes the HE104+DX ideal for use aboard aircraft or military applications or wherever EMI or RFI must be minimized. The +5VDC and +12VDC outputs are controlled by a constant frequency architecture regulator that provides excellent line and load transient response.

The HE104+DX has an optocoupled on/off input (SD) to control the outputs of the HE104+DX. To enable the HE104+DX outputs, a 6 to 40V signal must be connected to the SD input. If remote control is not required, the SD input can be connected to the main power input. The common for the remote 6 to 40V signal must be connected to the HE104+DX common. If the SD input is connected directly to the main input power connector, the common for the SD input is already done. The HE104+DX is now RoHS compliant.


  • 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
  • 3.3V output 10A
  • -12V output 0.5

Input Voltage

  • 6 to 40V


  • Temperature Range -40ºC to +85ºC
  • PC/104 size & mounting holes with PC/104 and PCI-104 (Plus) busses
  • 3.55"W x 3.75"L x 0.6"H
  • Weight 6.08 oz/172.37 grams

Performance Characteristics

  • Load Regulation (5V output) <60mV
  • Line Regulation 40mV
  • Output temp. drift (5V output) <40mV
  • Switching Freq. 300kHz
  • Max. Input Transient 125V for 100msec
  • Output Ripple (5V output) <20mV
  • Conducted Susceptibility (5V output) >57db
  • Efficiency (5V output) Up to 90%


File Type Description
he104_plus_dx_spec.pdf Spec Sheet HE104+ DX Spec Sheet
he104_plus_dx_man.pdf User Guide HE104+ DX Manual

Ordering Info

Part Number Description
HE104+DX-N-N-PBF PC/104+, In 6-40VDC, Out 108 Watt, +3.3V@10A, +5V@15A, +12V@3A, -12V@500mA, (-40 to +85°C), No ISA Bus, No PCI Bus
HE104+DX-PBF PC/104+, In 6-40VDC, Out 108 Watt, +3.3V@10A, +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+DX-KIT Replacement Connector Kit for HE104+DX power supplies
CS Silicon conformal coating and epoxy
CU Urethane conformal coating and epoxy
FON Forced On Option
NS-xx Non-Stack Through ISA Bus, modifies -N -N
S-xx Stack Through ISA Bus, modifies -N -N
xx-NS Non-Stack Through PCI Bus, modifies -N -N
xx-S Stack Through PCI Bus, modifies -N -N

Orders can be placed by phone, e-mail, or through the Webstore


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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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