MIL-PRF-22885/109B
Display types: See table II.
TABLE II. Display types.
Description
Unlighted
Lighted
Type designation
Hidden legend
Black background
Colored lighted letters,
S
sunlight readable
black background
Hidden legend
Black background
Black letters, lighted
B
lighted background
colored background
Lighted background
Black letters,
Black letters, lighted
W
white background
colored background
Colored background
Black letters,
Black letters, colored
C
colored background
lighted background
Lighted letters
White letters,
Colored lighted letters,
N
black background
black background
Weight:
Four-pole with standard PB and 1.60-inch base, .875 ounces maximum.
Four-pole with high efficiency PB and 1.90-inch base, 1.05 ounces, maximum.
Two-pole with standard PB and 1.00-inch base, .525 ounces maximum.
Two-pole with high efficiency PB and 1.30-inch base, 0.7 ounces maximum.
Connector module and hard-mount sleeve, 1.4 ounces maximum.
Lamps: Illumination is by four T-1 subminiature flanged base, .15 MSCP (28 V, CC2F Filament), incandescent
lamps. Call Supplier for application information regarding use of these switches with LEDs.
Operating characteristics:
Actuation force: 2 to 5 pounds.
Actuation travel: .250 inch maximum
Extraction force: 1 to 5 pounds maximum.
Shock: Method I (75 g, half-sine).
Dielectric withstanding voltage at reduced barometric pressure:
Altitude: 50,000 feet (MIL-STD-202, method 105, test condition B).
Electrical endurance: See table III.
Luminance: Standard displays with incandescent illumination: See table IV for standard displays with
incandescent illumination using .15 2% MSCP lamps.
EMI/RFI shielding: The shielding efficiency test is applicable. The shielding attenuation shall be not less than
specified on figure 11.
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