85W Isolated Embedded Power Supply
  • Details
  • Specification
  • +5V & +3.3V output
  • +9V to +33V DC input range
  • PC/104 compliant
  • Operating Temperature: -40°C to +85°C (-40°F to 185°F)

Tri-M's TPSi1085 is an isolated PC/104-Plus embedded power supply offering 2250V input/output isolation, 6000W transient protection, active input voltage clamping, wide input ranges of +9V to +33V DC, and maximum efficiency 88%. This rugged design operates in an extended temperature range from -40°C to +85°C (-40°F to +185°F), and features quick-disconnect terminal socket plugs for simple installation.

Galvanically isolated and short circuit protected, the TPSi1085 offers two standard outputs of +3.3V @ 8A and +5V @17A with total combined power of 85W. This isolated power solution also provides remote shutdown functionality, power failure signaling and three dual colour LED status indicators. For PC/104-Plus connectivity, there are also 8bit, 16bit, and PCI headers with passthrough/non-passthrough bus versions available.

For applications requiring a clean isolated power, the TPSi1085 is the perfect solution. This high density, small form factor, and unprecedented SWaP (size, weight, and performance) board is the perfect design for military, aerospace, transportation, and industrial applications.


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

Technical specifications
Input Voltage Range: +9V to +33V DC
Transient surge stopper: designed to MIL-STD-1275 levels
Output Voltages: +5V @ 17A
+3.3V @ 8A
Maximum Combined Power: 85W Total
Efficiency: Up to 88%
Isolation Voltage: 2250V Max.
Transient Supression: 6000W Total
Output Ripple/Noise: Typ 20mV, max 75mV
Line Regulation: ±0.05% Max.
Load Regulation: ±0.06% Max.
Switching Frequency: 267kHz (5V), 1.01mHz (3.3V)
Current Limiting Fuse: Onboard 15A (on input source)
Quiescent current: 22mA (LEDs & Outputs Off)
Dimensions: PC/104 compliant, 90mm x 96mm x 15mm (3.55” x 3.775” x 0.6”)
Weight: 110g (3.9oz) no plugs, 117g (4.1oz) with plugs

Environmental and physical specifications

Operating Temperature: -40°C to +85°C (-40°F to 185°F)
Thermal Protection/Shutdown: +120°C (248°F)
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