INCH-POUND
MIL-DTL-55302/25F
3 December 2003
SUPERSEDING
MIL-C-55302/25E
7 June 1993
DETAIL SPECIFICATION SHEET
CONNECTORS, PRINTED CIRCUIT SUBASSEMBLY AND ACCESSORIES:
RECEPTACLE, 120, 150, 160, AND 180 CONTACT POSITIONS,
FOR PRINTED WIRING BOARDS (.075 SPACING)
This specification is approved for used by all Departments and Agencies of the Department of Defense.
The requirements for acquiring the product described herein shall consist of this specification sheet and
MIL-DTL-55302.
Style 1 (internal keying) connectors are hereby canceled and superseded by style 2 (external keying) connectors,
see table I for supersession data.
FIGURE 1. Connectors, receptacle, .075 (1.90 mm) spacing.
AMSC N/A
FSC 5935
MIL-DTL-55302/25F
Inches
.003
.004
.005
.006
.010
.012
.014
.015
.018
.019
.020
.022
.025
.027
.028
.030
.031
.032
.040
.045
mm
0.08
0.10
0.13
0.15
0.25
0.30
0.36
0.38
0.46
0.48
0.51
0.56
0.64
0.69
0.71
0.76
0.79
0.81
1.02
1.14
Inches
.050
.0625
.063
.065
.067
.073
.075
.080
.081
.083
.085
.087
.096
.101
.108
.109
.113
.125
.130
.135
mm
1.27
1.588
1.60
1.65
1.70
1.85
1.90
2.03
2.06
2.11
2.16
2.21
2.44
2.57
2.74
2.77
2.87
3.18
3.30
3.43
Inches
.136
.140
.171
.175
.180
.185
.200
.235
.242
.248
.250
.255
.260
.298
.300
.305
.315
.330
.332
.340
.400
mm
3.45
3.56
4.34
4.44
4.57
4.70
5.08
5.97
6.15
6.30
6.35
6.48
6.60
7.62
7.62
7.75
8.00
8.38
8.43
8.64
10.16
NOTES:
1. Dimensions are in inches.
2. Metric equivalents are given for information only.
3. Unless otherwise specified, tolerances are
±.005
(0.13 mm) on three place decimals and
±.2°
on angles.
4. These connectors mate with connectors specified in MIL-DTL-55302/23.
5. Use printed circuit boards with the type III receptacle.
6. Minimum pad length on printed circuit board.
7. Termination layout on .025 (0.64 mm) modular grid.
8. Numbers indication, every 5 cavities marked or molded on side (except 10 position). Numbers indicating end
cavities and lines indicating every 5 cavities molded or marked on mating face.
9. Location indicators embossed on surface.
FIGURE 1. Connectors, receptacle, .075 (1.90 mm) spacing - Continued.
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MIL-DTL-55302/25F
REQUIREMENTS:
Design and construction:
Dimensions and configuration: See figure 1.
Material:
Insulator body: Insulator material shall be in accordance with MIL-DTL-55302 or type GLCP-30F in
accordance with ASTM D5138 or MIL-M-24519.
Contact material: Contact material in accordance with MIL-DTL-55302 or beryllium copper alloy C17400 in
accordance with ASTM B768.
Plating
:
Engagement area: Gold in accordance MIL-DTL-55302 for .100 length, over nickel all over in accordance with
MIL-DTL-55302.
Termination area: Tin lead over nickel in accordance with MIL-DTL-55302 for the lengths:
.165 minimum length for type I, .200 minimum length for type II.
.300 minimum length for type III, .140 minimum length for type IV.
Contact identification: See figure 1.
Contact rating: 3.0 amperes maximum per contact, 2.25 amperes continuous per contact at 75° F.
Keying: See MIL-DTL-55302/31.
Oversized pin exclusions (sockets only): .0465 diameter pin.
Contact separation force: The connector shall meet the requirements of MIL-DTL-55302/29.
Wire size: Number 26 AWG maximum with type II, solder eyelet contact for wire termination.
Resistance to test probe damage: The connector shall meet the requirements of MIL-DTL-55302/30.
Mating and unmating: The maximum mating force in pounds shall the number of contacts multiplied by .25 and
the withdrawal force in pounds shall be a minimum of .025 times the number of contacts and shall not exceed the
measured insertion force.
Contact resistance: The average contact resistance of all contact measured shall not exceed .015 ohm, and no
individual contact pair shall have a resistance exceeding .020 ohm.
Contact retention: 3 pounds minimum.
Dielectric withstanding voltage:
Sea level: 900 volts rms.
High altitude: 200 volts rms.
Replacement contacts: See MIL-DTL-55302/32.
Contact removal tool: MIL-I-81969/9-01.
Part or Identifying Number (PIN): M55302/25-(dash number from figure 1).
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