M457 Series
  • AC+DC/DC Converter
  • Six DC Outputs Up To 125W
  • Input: 90-265VACĀ / 50,60,400Hz/ Single Phase
  • DC Input range: 18 to 70VDC
  • Fixed switching frequency (200KHz)
  • EMI Filters Included
  • Wide input range
  • AC Input / Output isolation
  • Over-voltage protection
  • Indefinite short circuit protection with auto-recovery
Designed to Spec - Challenge us with your requirements. No matter how complex, we will design and deliver the exact military power supply solution for your needs.

About the M457 Series

The M457 AC+DC/DC converter feature six outputs and up to 125W. Additional features include: high efficiency, wide input range, input / output isolation, fixed switching frequency (200KHz), EMI/RFI filters included, indefinite short circuit protection with auto-recovery and over-voltage protection. Designed to meet MIL-STD-461, MIL-STD-704, MIL-STD-810 and MIL-STD-1275, this is the ideal unit for military, rugged, telecom and demanding industrial applications.

(All specifications are factory configurable by a design engineer.)

Model Input Power (WxDxH) Weight

DC Input: 18-70VDC

AC Input: 90-265VAC Single Phase / 50 - 400Hz

 Up to 125W 6.34" x 8.19" x 0.58"   37.3 oz
Per Output Voltage Max Current    
Output #1  2.5-24V  3A    
Output #2  2.5-24V  3A    
Output #3 2.5-24V 1.25A    
Output #4 2.5-24V 1.25A    
Output #5 3.3-5V 10A    
Output #6 3.3-5V 10A    


All of our products can be configured to your specific requirements. Customers are invited to work with a design engineer to define the output, input range, protection limits and dimensions of the power solution which best meets their project needs. This can frequently be accomplished without NRE. Use the contact form to submit a request, or contact us at (603) 267-8865 to discuss your requirements. Configurations created for specific requirements will be assigned a new variant part number.

Milpower Source
P.O. Box 810
7 Field Lane
Belmont, NH 03220
United States
Phone: (603) 267-8865
Fax: (603) 267-7258
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