SK712_18V-36V MIL-STD-461-1275 EMI-Power DC 400W Module

400W Military Standard DC/DC Converter Module 18V to 36V Input /12V Output, Extended Temp. -40°C to 85°C


  • Wide Input Range: 18V~36V DC-IN, 400W
  • 12V DC Output up to 33 Amp
  • Over-voltage protection
  • Over current protection
  • Surge protection
  • High efficiency (typ. 92%)
  • Extended Temperature -40°C to 85 °C (with conduction cooling)
Categories: ,

Technical Profile


SK712 is a wide input board type converter supporting input range from 18V to 36V. Possessing military standard filter for EMI avoidance, SK712 guarantees the stability of voltage and electric current for system operation, especially suitable for application in military or other harsh environment. Furthermore, with parallel design, two SK712 can be combined for double power of 400W, supporting prominent system performance. Compliant with MIL-STD 1275/461, extended operating temperature from -40 to 85°C, SK712 performs as an ideal converter module for severe environmental usage.Output Over Current Protection (OCP), Output Overvoltage Protection (OVP) and Over Temperature Protection (OTP) to made stability and safty.



Input Voltage


18V~36V (2P Terminal block)


400W, 12V(4P Terminal block)



Power LED indicator


Power Efficiency


Ripple and Noise


Reverse Voltage Protect


Operation Temperature

-40°C to 85°C

Storage Temperature

-40°C to 85°C


Dimension 180(L) x 70(W) x 20(H) mm


CE102 basic curve, 10kHz – 30 MHz
RE102-4, (1.5 MHz) -30 MHz – 5 GHz
RS103, 1.5 MHz – 5 GHz, 50 V/m equal for all frequencies
EN55011,EN55032 CISPR32 ClassA
Contact Discharge Level 4(8kV)
Air Discharge Level 4(15kV)


Steady State : 20~33V;
Surge – Low : 18V/500ms;
Surge – High : 100V/50ms

CE/FCC compliant

EN 61000-4-2: Air discharge: 8 kV, Contact discharge: 6kV
EN 61000-4-4: Signal and DC-Net: 1 kV
EN 61000-4-5: Leads vs. ground potential 1kV, Signal und DC-Net: 0.5 kV
EN 55022, class A
EN 61000-4-3: 10V/m


MIL-STD-810, Method 514.5, C-3 Composite wheeled vehicle vibration
exposures. 40 min/Achse


MIL-STD-810, Method 516.5-1, frequencies: 10-2000 Hz, cross-over frequency 45 Hz

shock: peak acceleration 20g,+/- 10 shocks per axis (3x)