MIL-PRF-8805/111A
REQUIREMENTS:
Dimensions and configuration: See figure 1. Basic switch shall be MS24547-4 (MIL-PRF-8805/4).
Enclosure design: 1 (Unsealed).
Temperature characteristic: 1 (-55°C to +85°C).
Shock type: M(100 g).
Vibration grade: 2 (10 to 2,000 Hz).
Weight: 0.8 ounce maximum.
Dielectric withstanding voltage:
Sea level: 1,050 V rms.
Altitude (80,000 ft): 400 V rms. After electrical endurance, the dielectric withstanding voltage points
of application between all unconnected terminals of the same pole is not applicable.
Operating characteristics:
Operating force: The actuating force measured at the bottom of the trigger shall be 2.250 ±.500
pounds to make the first pole; 6.500 ±.750 pounds shall be required to pass through the detent, and
6, +0, -3 pounds to continue travel after the detent.
Releasing force: 0.75 pound minimum.
Actuating travel:
Switch 1:
Pretravel: .130 inch minimum from full out.
Overtravel: .015 inch minimum before first detent.
Switch 2:
Pretravel .020 inch minimum beyond first detent
Overtravel: .030 inch minimum before total travel.
Mechanical endurance: 100,000 cycles.
Electrical endurance: 50,000 cycles. After electrical endurance, the contact resistance shall not
exceed 1 percent of the load resistance, using the electrical parameters of the minimum current test
load.
3