bC1 dimensions are shown: inch (mm) specifications and dimensions subject to change www.ck-components.com t actile switches b features/benefits ? long life version ? 4 actuation forces ? optional ground pin ? ultra low current capabilities ? excellent tactile feel kmr 4 series microminiature smt top actuated typical applications ? automotive ? cellular phones ? industrial electronics ? medical equipment electrical silver gold maximum power: 1 va 0.2 va maximum voltage: 32 vdc 32 vdc minimum voltage: 20 mvdc 20 mvdc maximum current: 50 ma 10 ma minimum current: 1 ma* 1 ma* dielectric strength: 250 vrms contact resistance: 100 m insulation resistance: 1g bounce time: 3 ms *for ulc version minimum current is 1? at 1.8 vdc envir onmental silver gold opera ting temperature: -40?c to 85?c -40?c to 125?c storage tempera ture: -55?c to 85?c -55?c to 125?c process infrared reflow soldering in accordance with iec61760-1 packaging in reels of 6,000 pieces for kmr 4 exter nal diameter 330 mm 2 mm note : specifications listed above ar e for switches with standar d options. for information on specific and custom switches, consult customer service center . specification function: momentary action contact arrangement: 1 make contact = spst, n.o. terminals: gullwing type for smt mechanical total height 4 2,5 mm lfs lead free compatible, silver plated lfg lead free compa tible, gold plated actuation force 2 2 n (200 grams) 3 3 n (300 grams) 4 4 n (400 grams) k m r n g 4 3 1 contact material 1 silver 2 silver long life 3 gold grounding option g ground pin ng no ground pin low current capability void under standard specification ulc low current part number description for any part number different from those listed above, please consult your local representative. kmr421 lfs 2.0 (200) 0.50 200 000 0.25 mm 0.1 kmr431 lfs 3.0 (300) 0.75 150 000 0.30 mm 0.1 kmr431 ulc lfs 3.0 (300) 0.75 150 000 0.30 mm 0.1 kmr432 lfs 3.0 (300) 0.75 300 000 0.30 mm 0.1 kmr432 ulc lfs 3.0 (300) 0.75 300 000 0.30 mm 0.1 kmr441 lfs 4.0 (400) 1.00 100 000 0.35 mm 0.1 kmr441 ulc lfs 4.0 (400) 1.00 100 000 0.35 mm 0.1 kmr442 lfs 4.0 (400) 1.00 200 000 0.35 mm 0.1 kmr442 ulc lfs 4.0 (400) 1.00 200 000 0.35 mm 0.1 type g and ng (except gold version g only) see description below operating force n (grs) operating life (cycles) travel (mm) tactile feeling: for kmr 4 series: 25% u l c l f s
bC2 dimensions are shown: inch (mm) specifications and dimensions subject to change www .ck-components.com t actile switches b b b 2,5 0,2 1 , 4 0 , 15 1,61 2,2 0,6 0,6 2,8 0,2 4,2 4,6 2,11 3,2 1,7 0,55 2,45 0,6 2,6 1 5 5 1 2 4 3 b b a a +0,3 -0,1 ? ground te r minal 2,75 0,1 0,29 2 0 ,0 2 3,03 0,1 1,75 5,5 0,05 12 4 0, 1 2 0, 0 5 1,5 0,1 6 0 max 4,95 0,1 se c tion a-a de- reel ing di re c ti o n out of the tape 6 0 max kmr 4 series microminiature tact switch for smt t ape & reel kmr 4 series - 2.5 mm height pcb layout shown with ground pin option
|
