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Diamond Point International

Diamond Systems Jupiter-MM - 50 Watt PC/104 DC/DC Power Supply

25 - 50 Watts Max Output Power, +5, +12V, -5V and -12V Rails - Ext Temp


This rugged, extended-temperature DC/DC power supply is designed specifically for air and ground vehicle applications. It consists of a PC/104 form factor module with complete DC-DC voltage regulator circuitry, heat sink, input and output connectors, power-good indicator lamps, and both 8-bit and 16-bit PC/104 bus headers. Input voltage range is 7 to 34VDC, making it suitable for use with both 12V and 24V systems.

Output power is provided directly onto the PC/104 bus connectors, as well as on an auxiliary connector for external tapping. Both dual output (+5, +12) and quad output (+5, +12, -5, -12) versions are available. Up to 10 amps can be provided on the +5 output, or the 50 watts of total power can be distributed across the 4 outputs.

The low-profile SMT design guarantees that you can add other PC/104 modules on top of this board without any worries of mechanical interference. Simply stack your CPU and other cards on top or below the power supply module to provide power to your PC/104 system.

Jupiter-MM is available in two configurations:

  • JMM-512: +5V (10A max) and +12V (2.0A max)
  • JMM-512-V512 +5V (10A max), -5V (150mA max), +12V (2.0A max) and -12V (800mA max)

Surface Mount Components

To the maximum extent possible, surface mount components have been used in the design, to lower the profile and improve ruggedness. An additional benefit to SMT technology is the improved ability to use the PCB planes as a heat sink.

High Efficiency, High-Frequency Design

Efficiency is as high as 92 percent, lowering input power requirements as well as heat generation. The 200KHz switching circuit allows the use of smaller inductors, reducing size and weight and allowing the board to fully fit within the PC/104 height requirements.

Advanced Heat Sink Technology

A new compressible thermally-conductive material mounted under the aluminum heat sink makes it possible to wick heat away effectively from varying height components. Also, the use of surface mount components and careful PCB design enhance the dissipation of heat through the PCB planes.

Remote On/Off Control

The supply can be turned on and off with an external contact closure through an auxiliary connector.


Power Supply

InputInput voltage: 7-34VDC
Input ripple: <100mV RMS
Transient protection: 1500W transient voltage suppressor
Transient cutoff: 31V nominal
Output(s)Output voltage/current
• JMM-512: +5V at 10A max, +12V at 2.0A max
• JMM-512-V512: +5V at 10A max, -5V at 0.15A max, +12V at 2.0A max, -12V at 0.8A max
Output protection: Current limit/short circuit protection
Output ripple: <50mV RMS (+5V output, 50% load)
Load regulation: ±3%
EfficiencyEfficiency 80% to 92%, varies with load and input voltage


ExpansionStandard 16 bit PC/104 interface
8-bit and 16-bit bus stack through headers are installed
Electrical7-34V DC - see above for further details
MechanicalWidth: 96 mm x 90 mm, 3.55" x 3.775"
Conformal CoatingOn request
TemperatureTemperature range (operation): -40°C to +85°C
Temperature range (storage): -40°C to +85°C
Humidity5% to 95% noncondensing
Weight5.0 oz/142g
MTBFJMM-512: 107,941 hours
JMM-512-V512: 87,569 hours
Warranty1 Year

Ordering Details

Jupiter-MM 50 Watt DC/DC power supply, +5V/+12V, Extended Temperature

Jupiter-MM 50 Watt DC/DC power supply, +5V/+12V/-5V/-12V, Extended Temperature
Order Online DSC Jupiter-MM - Order Online