MIL-DTL-9177C
3.6 Performance.
3.6.1 Contact mating (when specified, see 3.1) (see figure 1). When connectors are tested as specified
in 4.6.2, there shall be no discontinuity.
3.6.2 Contact resistance. When connectors are tested as specified in 4.6.3, the contact resistance shall
not exceed 0.02 ohm, except following the salt spray test, the contact resistance shall not exceed 0.10
ohm.
3.6.3 Insulation resistance. When connectors are tested as specified in 4.6.4, the insulation resistance
shall be 1.000 megohms or greater, and 100 megohms or greater after the moisture resistance test (see
4.6.10).
3.6.4 Dielectric withstanding voltage. When tested as specified in 4.6.5, connectors shall withstand a
minimum of 500 volts root mean square (rms) without dielectric breakdown or flashover.
3.6.5 Insertion and withdrawal forces. When connectors are tested as specified in 4.6.6, the insertion
and withdrawal forces shall be as specified (see 3.1).
3.6.6 Electromagnetic coupling (when specified) (see figure 2). When tested as specified in 4.6.7, the
voltages induced into the voltmeter shall not exceed the values listed below.
Frequency (Hz) +5Δ
Voltage (mV)
200
0.020
1,000
0.07
5,000
0.35
10,000
0.70
3.6.7 Dielectric coupling (when specified, see 3.1) (see figure 3). When tested in accordance with 4.6.8,
the voltages induced into voltmeter (V2) shall not exceed the values listed below.
Frequency (Hz) +5Δ
Voltage (V2) (mV)
200
0.020
1,000
0.10
5,000
0.50
10,000
1.0
3.6.8 Thermal shock. When connectors are tested as specified in 4.6.9, the insulation shall not be
cracked, warped, or delaminated; all marking shall remain legible; and it shall be possible to remove and
replace screw-on shells (where used) (see 3.1) without the use of tools other than a screwdriver.
3.6.9 Moisture resistance. When connectors are tested as specified in 4.6.10, the initial insulation
resistance shall be as specified in 3.6.3. Following step 6 of the final cycle, the insulation resistance shall
be not less than 1 megohm. Following the drying period, the contact resistance, insulation resistance,
and dielectric withstanding voltage shall be as specified in 3.6.2, 3.6.3, and 3.6.4, respectively; the
insulation shall not be cracked, warped, or delaminated; there shall be no excessive corrosion (see
3.6.12) of metal parts; all marking shall remain legible; and it shall be possible to remove and replace
screw-on shells (where used) (see 3.1) without the use of tools other than a screwdriver.
3.6.10 Vibration. When connectors are tested as specified in 4.6.11, there shall be no damage or
loosening of parts, loss of electrical continuity for more than a period of 1 microsecond with a current of
100 milliamperes dc, and the mating connector shall not separate from the test connector and the contact
resistance shall be as specified in 3.6.2.
3.6.11 Shock (specified pulse). When connectors are tested as specified in 4.6.12, there shall be no
visual evidence of mechanical damage, rupture of dielectric materials, loss of electrical continuity for more
than period of 3 microsecond with a current of 100 milliamperes dc, or loosening of parts.
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