ROUND DOMES FOR PRINTED CIRCUIT BOARD APPLICATIONS
US DOMES
PART NUMBER* DIAMETER (D) + .002” FREE HEIGHT (H) + .002”
US156XXX………………………………… .156” ……………………………….. .008”
US200XXX………………………………… .200” ……………………………….. .012”
US220XXX………………………………… .220” ……………………………….. .012”
US270XXX………………………………… .270” ……………………………….. .014”
US350XXX………………………………… .350” ……………………………… .015”
US425XXX………………………………… .425 ……………………………….. .017”
US500XXX………………………………… .500” ……………………………….. .017”
US625XXX………………………………… .625” ………………………………… .018”
US750XXX.……………………………….. .750” ……………………………….. .025”
* WHERE XXX = TRIP FORCE IN GRAMS
** N = Nickle plated, S = Silver plated, and G = Gold plated
MECHANICAL SPECIFICATIONS
DOME MATERIAL ……………… STAINLESS STEEL
TRIP FORCE ……………………… STANDARD =170, 220, 0R 300 grams; tolerance = + 25 gms
CUSTOM / HIGH VOLUME = TO YOUR SPEC
TOLERANCE / HIGH VOLUME = TO YOUR SPEC
PLATING ………………………….. NICKEL, SILVER, OR GOLD
OPERATING TEMPERATURE .. -20 DEGREES C (-4 DEG F) TO + 85 DEGREES C (+185 DEG F)
STORAGE TEMPERATURE……. -40 DEGREES C (-40 DEG F) TO + 85 DEGREES C (+185 DEG F)
HUMIDITY……………………….. 0% TO 95% (NON-CONDENSING)
ACTUATION LIFE……………… UP TO 1,000,000 CYCLES
(DEPENDING ON SPECIFIED TRIP FORCE)
ELECTRICAL SPECIFICATIONS
CONTACT CONFIGURATION …. SPST, NORMALLY OPEN
CURRENT………………………….. 10Ma TYPICAL; 40Ma MAXIMUM
VOLTAGE ………………………… 24VDC (RESISTIVE LOAD)
** RESISTANCE …………………….. 1 ohm TYPICAL; 20 ohms MAXIMUM
CONTACT BOUNCE …………….. MAKE = 1 msec TYPICAL; 10 msec MAXIMUM
BREAK = 1 msec TYPICAL; 20 msec MAXIMUM** FOR LOWER RESISTANCE OPTIONAL PLATING SHOULD BE CONSIDERED FOR BOTH DOME AND PRINTED CIRCUIT BOARD
LIBERTY TECHNOLOGIES
5922 McINTYRE STREET
GOLDEN, COLORADO 80403 TEL: 303-408-3805
| 
