MIL-DTL-55302/125D
REQUIREMENTS
Design and construction:
Dimensions and configurations: See figure 1.
Material:
Body: In accordance with MIL-DTL-55302.
Plating: Contact plating shall be gold in accordance with MIL-DTL-55302 over nickel in accordance
with MIL-DTL-55302 in the contact engagement area for .100 inch minimum length. The termination
area plating shall be tin lead in accordance with MIL-DTL-55302 over nickel in accordance with
MIL-DTL-55302 for .250 inch minimum length.
Contact identification: See figure 1.
Contact rating: 1.5 amperes per contact, maximum.
Operating temperature: -65°C to +125°C.
Keying: See MIL-DTL-55302/31.
Mating and unmating: The maximum mating force in pounds shall be the number of contacts
multiplied by .30 and the withdrawal force in pounds shall be a minimum of .03 times the number of
contacts and shall not exceed the measured insertion force.
Contact resistance: The average contact resistance of all contacts measured shall not exceed .025
ohm, and no individual contact pair shall have resistance exceeding .030 ohm.
Contact retention: .75 pound, minimum.
Dielectric withstanding voltage:
Sea level: 450 volts rms.
High altitude: 150 volts rms.
Solderability: Each connector shall be subjected to method 208 of MIL-STD-202 (solder termination
only) (applicable to qualification and retention of qualification only).
Part or Identifying Number (PIN): M55302/125-01.
Patent number 3,404,367. The Government has a royalty free license under this patent for the benefit
of manufacturers of the item either for the Government or for use in equipment to be delivered to the
Government.
Referenced documents. In addition to MIL-DTL-55302, this document references the following:
MIL-DTL-55302/31
MIL-DTL-55302/126
MIL-STD-202
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