MIL-PRF-8805/72L
REQUIREMENTS:
Dimensions and configurations: See figure 1.
Enclosure design: 5 (hermetic). Basic switch shall be hermetically sealed M8805/68-022 listed on QPL-
8805. Plunger is unsealed.
Temperature characteristic: 2 (- 65°C to + 125°C).
Shock type: M (100 g, test condition I, method 213 of MIL-STD-202).
Vibration grade: 3 (10 Hz to 3,000 Hz swept sinusoidal ).
Operating characteristics:
Actuating force: 30 ounces maximum at standard temperature and pressure (21°C and 14.7 psia).
Releasing force: 4 ounces minimum at standard temperature and pressure (21°C and 14.7 psia).
Movement differential: .005 inch (0.13 mm) maximum.
Pretravel: .010 inch (0.25 mm) maximum
Overtravel:
Type A and E: .125 inch (3.18 mm) minimum.
Type C and F; .060 inch (1.52 mm) minimum.
Contact resistance: .040 ohm + 0.011 ohm per lead per foot.
Dielectric withstanding voltage:
Sea level and 70,000 feet: 1,050 V rms (terminal to case), 800 V rms (terminal to terminal).
Seal test: Not required.
Mechanical endurance: 50,000 cycles.
Electrical endurance: 4 amp load: 25,000 cycles
Intermediate current: 25,000 cycles.
Low level: 25,000 cycles.
Electrical ratings: see table I.
Short circuit: 20 times rated resistive load (MS3320-7 ½ or equivalent, used for circuit protection).
Weight: 0.6 ounce +0.1 ounce per lead per foot.
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