MIL-DTL-13718F
3.4.2 Connector strength. Connector shall withstand a load of 20 pounds (lb), applied
along connector centerline in a direction away from relay housing, without deformation which
would prevent attachment of mating connector (see 4.5.4).
3.4.3 Dielectric withstanding voltage. Relay shall withstand an applied voltage of
500 volts root mean square (rms) at a frequency of 60 Hertz (Hz) for 60 seconds between
terminals, and between each contact terminal and each coil terminal. Insulation materials shall
evidence no burning, charring, smoking, or rupture. Relay shall subsequently meet the
requirements of 3.4.6 (see 4.5.5).
3.4.4 Pickup voltage. Relay pickup voltages shall not exceed maximum value specified
on applicable drawings (see 3.3), in any air temperature between 165 ± 5°F and -65 ± 5°F
(73.8 + 2.7°C) and (-53.8 + 2.7°C) (see 4.5.6).
3.4.5 Dropout voltage. Relay dropout voltage shall conform to the applicable drawings
(see 3.3), in any ambient air temperature between 165 ± 5°F and 65 ± 5°F (73.8 + 2.7°C) and
(-53.8 + 2.7°C) (see 4.5.7).
3.4.6 Contact voltage drop. Voltage drop across relay contacts, measured at relay
terminals, shall be not more than 150 millivolts (mV), except after exposure to conditions of
overload (see 3.4.7), endurance (see 3.4.8), inductive load (see 3.4.11), or vibration
(see 3.4.13 and 4.5.8).
3.4.7 Overload. Relay shall withstand 50 000 cycles of making and breaking in circuit
with a resistive load equal to 2.5 times normal resistive load rating (see 4.5.9 through 4.5.9.2).
Thereafter, voltage drop across relay contacts, measured at relay terminals, shall be not more than
250 mV (see 3.4.6).
3.4.8 Endurance. Relay shall withstand 100 000 cycles of making and breaking in circuit
with a resistance load equal to normal resistive load rating (see 4.5.10). Thereafter, voltage drop
across relay contacts measured at relay terminals shall be not more than 250 mV (see 3.4.6).
3.4.9 Coil current. Coil current shall conform to values specified on the applicable
drawings (see 6.2), when relay is subjected to maximum operating voltage applied to coil
terminals (see 4.5.11).
3.4.10 Contact bounce and operating time. Contact bounce and operating time shall
conform to the applicable drawings (see 4.5.12 and 6.2).
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