8121 C&K 1A 120VAC Snap-acting Momentary Pushbutton Switch
CONTACT RATING: B contact material (8X25 Models): 0.4 VA max.
@ 20 V AC or DC maximum. G contact material (8X21, U8X1
Models): 1 AMP @ 120 V AC or 28 V DC or 0.4 VA max. @ 20 V
AC or DC max. Note: Break-before-makecontacts. Multi-pole
contacts do not make and break simultaneously. See page A-43
for additional ratings.
ELECTRICAL LIFE: 60,000 make-and-break cycles at full load.
CONTACT RESISTANCE: Below 50 m½ typ. initial @
2-4 V DC, 100 mA, for both silver and gold plated contacts.
INSULATION RESISTANCE: 109½ min.
DIELECTRIC STRENGTH: 1,000 Vrms min. @ sea level.
OPERATING TEMPERATURE: 8X2X MODELS: –30ºC to 75ºC.
U8X1 MODELS: –30ºC to 65ºC.
CAP INSTALLATION FORCE: 10 lbs. max. permissible.
SOLDERABILITY: Per MIL-STD-202F method 208D, or EIA RS-186E
method 9 (1 hour steam aging).