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Diamond Point International

Tri-M HE104+DX - 108W Rugged PC104-Plus Power Supply

3.3V, 5V, 12V & -12V Outputs Standard, -40 to +85 Operation


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


Power Supply

Input6V to 40V DC
Output(s)5V output: 15A
12V output: 3A
3.3V output: 10A
-12V output: 0.5

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
EfficiencyUp to 90%
OtherOpto-coupled inputs for remote control of the outputs.


ExpansionStandard 16 bit PC/104 interface (stack through headers are installed)
Standard 32 bit PCI-104 interface (stack through headers are installed)
'Non stack-through' option. 'No connector' option. See ordering details.
Electrical6 - 40VDC - see above for more details
MechanicalDimensions: 90mm x 96mm (3.55" x 3.775"), standard PC/104
Conformal CoatingOn request
TemperatureTemperature range (operation): -40°C to +85°C
Temperature range (storage): -40°C to +85°C
Weight6.08 oz/172.37 grams
MTBF484,473 hours (55 years)
Warranty1 Year

Ordering Details

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

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

-FON Forced On Option (factory installed)
-CH Add suffix for Humiseal conformal coating and epoxy (factory installed)
-CS Add suffix for Silicon conformal coating and epoxy (factory installed)
-CU Add suffix for Urethane conformal coating and epoxy (factory installed)
-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
Order Online Tri-M HE104+DX - Order Online