.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 (5,080,25) .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 (5,080,25) .200 (5.08) .320 (8.13) 90? .105 (2,67) typ. .075 (1,91) .410 (10,41) max. 1 2 3 .030 (0,76) terminal id 38bc butt contact pushbutton switches series 38bm and 38bc sub-miniature surface mount feature s ? surface mount process compatible ? sealed construction ? spst and spdt, momentary contact ? extended or flush plunger ? drop-in replacement for industry standard specific ations pc mounting 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 silver contacts: i.o. amps maximum at 120 vac or 28 vdc 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 t emperature: -30c to +85c solderability: per mil-std-202f, method 208d, or eia rs-186e method 9 (1 hour steam aging) a vailable from your local grayhill d istributor. for prices and discounts, contact a local sales offce, an authorized local distributor or grayhill. .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) dimensions in inches (and millimeters) materials and finishes base and cover: thermoplastic (ul 94v-0) plunger: thermoplastic (ul 94v-0), with standard internal o-ring seal t erminals: copper alloy, gold plate over nickel plate spring: plated music wire contact system: copper alloy, gold or silver plate (as specifed) over nickel plate switch support: brass, tin-plated spst spdt 38bm pushbutton 4 grayhill, inc. ? 561 hillgrove avenue ? lagrange, illinois 60525-5997 ? usa ? phone: 708-354-1040 ? fax: 708-354-2820 ? www.grayhill.com pushbutton switches
butt contact pushbutton switches pushbutton 5 series: 38bm = spst, momentary, surface mount 38bc = spdt, momentary, surface mount dimension "a ": 0 = 0.020" 4 = 0.215" 38bx-0-h-3-s seal: s = o-ring seal contact plating material: 1 = solder dip over gold (non-rohs) 2 = solder dip over silver (non-rohs) 3 = gold - rohs compliant 4 = silver - rohs compliant orientation: h = horizontal to pcb spst n.o. spstCn .o. circ uitry ta pe and reel p a cka ging ordering inform ation spdtCn .o. n.o. term. 3 n.c. term. 1 comm term. 2 series 38bm and 38bc sub- miniature surface mount 38bm-4-h-1-s shown for reference only switches and cover tape not shown for clarity 1.260.012 (32.00 0.3mm) 13 inch reel .630.004 (16.000.1mm) pocket center lines direction of feed pushbutton switches grayhill, inc. ? 561 hillgrove avenue ? lagrange, illinois 60525-5997 ? usa ? phone: 708-354-1040 ? fax: 708-354-2820 ? www.grayhill.com
|
