series 78b right angle option thru-hole dip switches fea tures ? easy access ? spst circuitry ? 2-10 and 12 positions available ? sealed versions available applica tions telecommunications, computers and peripherals, instruments and controls. specifica tions mechanical mechanical l ife: 2,000 operations per switch. operation t emp: -40c to + 85c storage t emp: -55c to + 85c vibration t est: per method 204, test condition b, 1 ms opening (10 ms allowed) shock t est: mil-std-202f method 213 test condition a, 1ms (10 allowed) electrical electrical l ife: 10,000 operations per switch 24vdc, 25ma. n on-switching rating: 100ma, 50vdc. switching rating: 150ma, 30dvc; 10ma, 50mvdc c ontact resistance: 30m ? max. at initial. insulation resistance: (at 100vdc) 5,000m ? min. dielectric strength: 750vac/1 minute. capacitance: 2pf max. soldering and cleaning p rocess c leaning tape sealed products: passes immersion test using water/ detergent. acceptable solutions include 1-1- 1 trichlorethane, freon, (tf, te, or tms), isopropyl alcohol, detergent (140f maximum). terpene acceptable for series 90 only. solutions which are not recommended include acetone, methylene chloride, freon tmc. pressure wash cleaning processes are not recommended for tape seal switches. wave soldering: recommended solder temperature: 500f (260c) max 5 seconds. hand soldering: use a soldering iron of 30 watts or less, controlled at 608f (320c) approximately 2 seconds while applying solder. c leaning: tape sealed versions withstand cleaning processes. materials c ontact ball: brass with gold plating over nickel t erminals: brass with gold plating over nickel nonconductive p arts: plastic ul94v-0 p otting material: epoxy shorting member (ball): brass, gold-plated over nickel barrier. p rotective c over: polycarbonate. t ape seal: polyester flm t ape seal integrity: passes gross leak test using 125c fourinert for 20 seconds minimum. reference mil-std-202, method 112. series 78b dimensions in inches (and millimeters) series 78b, 78f, 78g, 78h, 78j, 78k, 78rb styles available as right angle number of p ositions 2 through 12 rohs compliant 78b08sra t right angle s= top tape sealed, blank=unsealed orderi n g i nforma tion dip 17 right angle assemblies as shipped right angle assemblies as installed tape sealed 78r 78k 78h 78f 78j 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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