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(603) 267-8865
M7221 Series
  • DC/DC Converter
  • Single Output Up To 300W
  • Input: 18 to 48VDC
  • EMI/RFI Filters Included
  • Miniature, High Efficiency
  • Efficiency 75-85% (Typical)
  • Operating Temperature: –55°C to +90°C
  • Designed to Meet: MIL-STD-461, MIL-STD-704, MIL-STD-810, MIL-STD-1275

About the M7221 Series

The M7221 Series DC/DC converters feature a miniature, high efficiency, single output design and delivers up to 300W. Built to exacting standards, an efficiency of 75-85% (typical) and operating temperature of -55°C to +90°C is achieved. EMI/RFI filters are included as a standard feature. 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
M7221 18 to 48VDC Up to 300W    2.78" x 5.40" x 0.81" 15.6 oz
Per Output Voltage Max Current    
Output #1 3.3 to 15VDC  60A   


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.

Examples of Prior Model Variants

Model Input Output Maximum
Regulation Ripple
(20MHz BW)
M7221-1 18 to 48 VDC 3.3 VDC 60 A ± 1% 50mVp-p
M7221-2 18 to 48 VDC 5 VDC 60 A ± 1% 50mVp-p
M7221-3 18 to 48 VDC 8 VDC 40 A ± 1% 50mVp-p
M7221-4 20 to 36 VDC 5.9 VDC 27 A ± 1% 50mVp-p


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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