pushbutton switches grayhill, inc. ? 561 hillgrove avenue ? lagrange, illinois 60525-5997 ? usa ? phone: 708-354-1040 ? fax: 708-354-2820 ? www.gr ayhill.com sealed surface mount subminiature pushbutton switches 1 .320 (8,13) .410 (10,41) max. .162 (4,11) dim "a" .200 (5,08) .024 (0,61) .075 (1,91) .030 (0,76) .289 (7,34) .105 (2,67) typ. .200 .010 (5,08 0,25) .020 (0,51) typ. .180 (4,57) dia. .100 (2,54) dia. c l .125 (3,18) .125 (3,18) .024 (0,61) .162 (4,11) .289 (7,34) dim "a" "a" .100 (2,54) .200 .010 (5,08 0,25) .200 (5.08) .320 (8.13) 90? .105 (2,67) typ. .075 (1,91) .410 (10,41) max. solder dip area 1 2 3 .030 (0,76) terminal id dimensions in inches (and millimeters) series 38b and 38h sealed surface mount subminiature pushbutton switches features ? surface mount process compatible sealed construction solder-coated terminals tape and reel packaging spst and spdt momentary contact spst spdt 38bc 38bm series 38b .070 (1,78) .040 (1,02) typ. .143 (3,63) typ. .128 (3,25) typ. .080 (2,03) typ. .040 (1,02) typ. .080 (2,03) .368 (9,35) .150 (3,81) typ. terminal pads .040 (1.02) standoff pads .070 (1.78) .368 (9.35) .080 (2,03) .128 (3,25) .040 (1.02) .150 (3.81) .080 (2,03) .143 (6.63) pc mounting circuitry s wit c h p os iti on m o del n o. w s p 9 o f f ( on ) () =momentar y sc hemati c s wit c h p os iti on m o del n o. w s p 8 2 - 1 on 2- 3 ( on ) term. co mm . () =momentar y sc hemati c 3 n. o. n. c . 1 2 co mm. s pd t s p st
grayhill, inc. ? 561 hillgrove avenue ? lagrange, illinois 60525-5997 ? usa ? phone: 708-354-1040 ? fax: 708-354-2820 ? www.gr ayhill.com pushbutton switches sealed surface mount subminiature pushbutton switches 2 e-8 ordering information series 38b dimensions in inches (and millimeters) series 38h spst m7 available from your local grayhill distributor. for prices and discounts, contact a local sales office, an authorized local distributor or grayhill. materials and finishes base and cover: thermoplastic (ul 94v-0) plunger: thermoplastic (ul 94v-0), with standard internal o-ring seal terminals: copper alloy, solder plate over nickel plate, solder-coated spring: plated music wire contact system: copper alloy, gold plate over nickel plate, solder-coated switch support: brass, tin-plated specifications rating criteria operating life: 80,000 make-and-break cycles at full load contact rating (resistive load): gold contacts : 0.4 va maximum at 20 vac or vdc maximum contact resistance: below 20 milliohms typical initial at 2-4 vdc, 100 ma insulation resistance: 1000 megaohms min. voltage breakdown: 1000 vrms minimum at sea level operating temperature: -30c to +85c solderability: per mil-std-202f, method 208d, or eia rs-186e method 9 (1 hour steam aging) ? .177 ( ? 4,50 ) ? .1 02 ( ? 2,60 ) . 030 ( 0,50 ) ep o xy s ea l .177 ( 3,00 ) . 3 4 2 ( 5,80 ) .242 ( 4,10 ) . 0 4 5 ( 0,76 ) . 300 ( 5,08 ) . 5 4 8 ( 9,30 ) . 3 2 5 ( 5,50 ) .242 ( 4,10 ) .42 0 ( 7,10 ) . 0 2 4 ( 0,40 ) .12 5 ( 3,18 ) .17 3 ( 4,39 ) . 0 7 9 ( 2,00 ) . 063 ( 1,60 ) . 3 2 5 ( 8,27 ) .12 5 ( 3,18 ) . 561 ( 14,25 ) .12 0 ( 3,00 ) .221 ( 5,60 ) series: 38bm = spst, momentary, surface mount 38bc = spdt, momentary, surface mount dimension "a": 0 = 0.020" 4 = 0.215" 38bx-0-h-1-s seal: s = o-ring seal contact material: 1 = gold orientation: h = horizontal to pcb
pushbutton switches grayhill, inc. ? 561 hillgrove avenue ? lagrange, illinois 60525-5997 ? usa ? phone: 708-354-1040 ? fax: 708-354-2820 ? www.gr ayhill.com sealed surface mount subminiature pushbutton switches 3 dimensions in inches (and millimeters) series 38h spdt spst s6 m7 ? .177 ( ? 4,50 ) ? .1 02 ( ? 2,60 ) ep o xy s ea l .11 8 ( 3,00 ) .22 8 ( 5,80 ) . 030 ( 0,76 ) .1 61 ( 4,10 ) . 366 ( 9,30 ) .1 00 ( 2,54 ) . 0 2 0 ( 0,50 ) .2 80 ( 7,10 ) .1 61 ( 4,10 ) .217 ( 5,50 ) .0 1 6 ( 0,40 ) .12 0 ( 3,00 ) .22 1 ( 5,60 ) . 063 ( 1,60 ) .12 5 ( 3,18 ) . 3 2 5 ( 8,27 ) .10 0 ( 2,54 ) .12 5 ( 3,18 ) .17 3 ( 4,39 ) . 561 ( 14,25 ) . 0 7 9 ( 2,00 ) .22 8 ( 5,80 ) . 3 1 9 ( 8,10 ) .1 61 ( 4,10 ) . 0 1 6 ( 0,40 ) .35 3 ( 8,97 ) . 030 ( 0,76 ) .1 02 ( 2,60 ) .22 6 ( 5,75 ) .142 ( 3,60 ) ? .177 ( ? 4,50 ) .1 61 ( 4,10 ) . 0 2 0 ( 0,50 ) .2 80 ( 7,10 ) ep o xy s ea l . 032 ( 0,80 ) .14 3 ( 3,63 ) . 080 ( 2,03 ) . 0 4 0 ( 1,02 ) .421 ( 10,70 ) .12 8 ( 3,25 ) . 0 7 9 ( 2,00 ) .2 00 ( 5,08 ) .2 00 ( 5,08 )
grayhill, inc. ? 561 hillgrove avenue ? lagrange, illinois 60525-5997 ? usa ? phone: 708-354-1040 ? fax: 708-354-2820 ? www.gr ayhill.com pushbutton switches sealed surface mount subminiature pushbutton switches 4 series 38h dimensions in inches (and millimeters) circuitry s6 spdt .22 8 ( 5,80 ) . 3 1 9 ( 8,10 ) .1 61 ( 4,10 ) . 0 1 6 ( 0,40 ) . 353 ( 8,97 ) . 030 ( 0,76 ) .1 02 ( 2,60 ) .22 6 ( 5,75 ) .142 ( 3,60 ) ? .177 ( ? 4,50 ) .1 61 ( 4,10 ) .1 00 ( 2,54 ) . 0 2 0 ( 0,50 ) .2 80 ( 7,10 ) ep o xy s ea l .1 00 ( 2,54 ) . 032 ( 0,80 ) .14 3 ( 3,63 ) . 080 ( 2,03 ) . 0 4 0 ( 1,02 ) .421 ( 10,70 ) . 128 ( 3,25 ) . 0 7 9 ( 2,00 ) s wit c h p os iti on m o del n o. w s p 9 o f f ( on ) () =momentar y sc hemati c s wit c h p os iti on m o del n o. w s p 8 2 - 1 on 2- 3 ( on ) term. co mm . () =momentar y sc hemati c 3 n. o. n. c . 1 2 co mm. s pd t s p st
pushbutton switches grayhill, inc. ? 561 hillgrove avenue ? lagrange, illinois 60525-5997 ? usa ? phone: 708-354-1040 ? fax: 708-354-2820 ? www.gr ayhill.com sealed surface mount subminiature pushbutton switches 5 specifications rating criteria operating life: 50,000 make-and-break cycles at full load contact rating (resistive load): r option: 0.4 va maximum at 20 vac or vdc maximum q & g options: 1a max at 125 vac or 28 vdc contact resistance: below 20 milliohms typical initial at 2-4 vdc, 100 ma insulation resistance: 1000 megaohms minimum voltage breakdown: 1500 vrms minimum at sea level operating temperature: -30c. to +85c. materials and finishes case: glass filled nylon 4/6, ul94v-) plunger: thermoplastic polyester(ul 94v-0) (with internal o-ring seal) terminals: copper alloy spring: plated music wire contact system: copper alloy switch support: brass, tin-plated series model no. termination contact seal series 38h ordering information r = copper alloy, gold plate over nickel plate. g=copper alloy, gold plate over silver plate q= copper alloy, silver plate options: wsp8, wsp9 (see models for switching positions) options: m7, s6 (see termination options) e = epoxy seal 38h m7 r e wsp8 sealed surface mount subminiature pushbutton switches
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