series 78h spdt and dpst fe atures ? compatible with smt assembly including infrared refow and vapor-phase ? reliable spring and ball contact specification s electrical ratings make-and-break c urrent rating: 2,000 operations per switch position at 1 ma, 5 vdc; 50 ma, 30 vdc; or 150 ma, 30 vdc contact resistance: initial: 30 mohms max. after life: 100 mohms max. (10 ma at 50 vdc, open circuit) insulation resistance: minimum, at 100 vdc between adjacent closed contacts and also across open switch contacts. initial: 2,000 mohms; after life: 1,000 mohms dielectric strength: minimum voltage (ac, rms) measured between adjacent closed contacts and also across open switch contacts. initial: 750 volts; after life: 500 volts current carry rating: 4 amps, maximum rise of 20c switch capacitance: 2 pf at 1megahertz mechanical ratings mechanical life: 2,000 operations per switch position vibration resistance: per method 204, test condition b. 1 ms opening (10 ms allowed) mechanical shock: per method 213, test condition a. 1 ms opening (10 ms allowed) t erminal strength: per specifcation thermal aging: 1,000 hours at 85c; no failures thermal shock: per specifcation; no failures; passes contact resistance environmental ratings meets all requirements of mil- s-83504**. where grayhill performance is superior, the mil spec is listed in parentheses. operating temperature range: -40c to + 85c storage temperature range: -55c to + 85c moisture resistance: per mil-std-202, method 106 soldering information solderability: per mil-std-202, method 208 soldering heat resistance: per mil-s-83504, six second test recommended processing temperature: 220cC230c (1 pass260c maximum) processing position: switch is to be processed with all actuators in the closed (on) position as shipped. materials and finishes shor ting member : brass, gold-plated over nickel barrier. base contacts: copper alloy, gold-plated over nickel barrier. terminals: copper alloy, matte tin-plated over nickel barrier. non-conductive parts: cover is natural color thermoplastic, actuators are white thermoplastic (ul94v-o) 1 1 dot indicates activ e circuit. 11 on off on on circuitr y spdt 2 circuits (no common) dpst no. of length length carrier width part number* positions (inches) (metric) dim. a spdt dpst 1 0.280" 7,1 mm 24 mm 78hj01gwt 78hf01gwt 2 0.480" 12,2 mm 24 mm 78hj02gwt 78HF02GWT 3 0.680" 17,3 mm 32 mm 78hj03gwt 78hf03gwt 4 0.880" 22,4 mm 44 mm 78hj04gwt 78hf04gwt 5 1.080" 27,4 mm 44 mm 78hj05gwt 78hf05gwt * insert "r" before the "t" in the grayhill part number for tape and reel packaging (500 switches/ reel). ** note: 100% matte tin terminal plating does not meet mil-s-83504 for lead content. ordering inform ation : t ube p ackaging available from your local grayhill distributor. for prices and discounts, contact a local sales offce, an authorized local distributor or grayhill. dimensions in inches (and millimeters) spdt, dpst, top actuated, slide operated recommended pc pad dimensions .380 .010 (9,65 0,25) length .010 (0,25) see order info .303 .015 (7,70 0,38) .424 .015 (10,77 0,38) typ. .023 (5,84) ref. .012 .001 (0,30 0,03) typ. .055 .010 (1,40 0,25) .025 (0,64) r. .100 .005 (2,54 0,13) typ. c l c l .268 .010 (6,81 0,25) .530 (13,46) typ. .280 (7,11) typ. c l c l .070 (1,78) typ. .100 (2,54) typ. .295 + .000 C .020 (7,49 C 0,51) t ape and reel p ac k aging 1 4 3 2 1 4 3 2 1 4 3 2 4 2 3 4 2 3 4 1 13 inch diameter reel cover tape dim. a (see order info.) 1 2 3 4 1 2 3 4 1 1 1 2 3 4 1 pin one location 16 & 24mm tape 16mm 16mm 32 & 44mm tape direction of feed conductive plastic embossed tape meets requirements of eia 481-2 or eia 481-3 each reel has a 15.750 inch (390 mm) minimum leader and a 6.30 inch (160 mm) minimum trailer. dip 7 surface mount dip switches grayhill, inc. ? 561 hillgrove avenue ? lagrange, illinois 60525-5997 ? usa ? phone: 708-354-1040 ? fax: 708-354-2820 ? www.grayhill.com dip switches
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