Chassis Plans CPX-15, -17, -19 Technical Reference
Chapter 2 – Power Supply Options
Page 12
MIL-STD-704/1275 DC Input Converter
The xx Mil-Std-704/1275 DC Input Converter provides true 704/1275 input specifications allowing reliable
operation from nominal 28VDC input mains in a military environment. Amil grade DC to DC Converter is
provided in a rack mountable case with military grade circular connectors. This supply meets Mil-Std-704A and
Mil-Std-1275A (100V for 50mS).
Operating Specifications
Input Voltage
18-36VDC
Output Voltage
12.0VDC
Output Current
5A
Output Power
75W
Electrical Specifications
Efficiency
81%
Isolation
200VDC, Input to
Output and Input to Case
EMI Filtering
Mil-Std-461E,
CD101 and CE102 on the input
Operating Temperature
-40°C to +85°C
Storage Temperature
-55°C to +100°C
Connectors
Input Connector
MS3102A-10SL-4P
(MIL-C-5015)
Mating Input Connector
MS3106A-10SL-4S
(Straight)
MS3108A-10SL-4S
(Right Angle)
Pinouts
Pin A – Positive
Pin B – Negative
Pin C –N/C
Output Connector
MS3102A-10SL-3S
(MIL-C-5015)
Mating Output Connector
MS3106A-10SL-3S
(Straight)
MS3108A-10SL-3S
(Right Angle)
Pinouts
Pin A – Positive
Pin B – Negative
Pin C– N/C
Environmental Specifications
Pressure-Altitude
Per MIL-STD-810F,
Method 500.4, Procedure I
and II
High Temperature
Per MIL-STD-810F,
Method 501.4, Procedure I
and II
Low Temperature
Per MIL-STD-810F,
Method 502.4, Procedure I
Humidity
Per MIL-STD-810F,
Method 507.4, Procedure I
Fungus
Per Mil-Std-810F, Method
508.5, Procedure I
Salt Fog
Per Mil-Std-810F, Method
509.4, Procedure I
Sand and Dust
Per Mil-Std-810F, Method
510.4, Procedure I and II
Explosive Atmosphere Per Mil-Std-810F, Method
511.4, Procedure I
Acceleration
Per MIL-STD-810F,
Method 513.5, Procedure I
and II
Vibration
Per MIL-STD-810F,
Method 514.5, Procedure
I, Category 1, 4, 7 thru 14
and 16 thru 21
Shock
Per MIL-STD-810F,
Method 516.5, Procedure
I, IV
Table 7 - MIL-STD-704 Power Supply Specifications
