a-21 dimensions are shown: inches (mm) specifications and dimensions subject to change www.ck-components.com pu shbu tt on a e020 series sealed snap-acting momentary pushbutton switches features/benefits ? process sealed with disposable splashproof boot ? long life contact design ? snap-fitting plunger available ? rohs compliant models available t ypical applications ? instrumentation ? telecommunications and networking equipment ? computers and peripherals specifications contact rating: b contact material (ex25 models): 0.4 va max. @ 20 v ac or dc max. g contact material (ex21 models): 1 amp @120 v ac or 28 v dc or 0.4 va max. @ 20 v ac or dc max. note: break-before-make contacts. multi-pole contacts do not make and break simultaneously. see page a-26 for additional ratings. electrical life: 60,000 make-and-break cycles at full load. cont act resistance: below 50 m typ. initial @ 2C v dc, 100 ma, for both silver and gold plated contacts. insula tion resist ance: 10 9 min. dielectric strength: 1000 vrms min. @ sea level. operating temperature: C0o to 75?o cap inst allation force: 10 lbs. max. permissible. solderability: per mil-std-202f method 208d, or eia rs-186e method 9 (1 hour steam aging). note: any models supplied with p , r, b or g contact material ar e rohs compliant. note: specifications and materials listed above are for switches with standard options. for information on specific and custom switches, consult customer service center . materials case & bushing: glass filled nylon 6/6, flame retardant (ul 94v-0). plunger: glass filled nylon or glass filled polyester (pbt) (ul 94v-0). switch support: brass or steel, matte-tin. switch support retainer: stainless steel. n.o. & n.c. contacts: ex25 models: b contact material: copper alloy , with gold plate over nickel plate. ex21 models: g contact material: coin silver, with gold plate over nickel plate. see page a-26 for additional contact materials. common contacts & all terminals: copper alloy, with gold plate over nickel plate. see page a-26 for additional contact materials. terminal seal: epoxy. disposable boot : v inyl splashproof boot supplied standard. remove and discar d only after soldering and cleaning pr ocesses ar e complete. build-a-switch t o order, simply select desired option from each category and place in the appropriate box. available options are shown and described on pages a-22 thru a-28. for additional options not shown in catalog, consult our customer service center. all models ar e pr ocess sealed to withstand machine soldering temperatur es and pr essure wash cleaning methods. switch function e121 spdt on-mom. 1 amp e221 dpdt on-mom. 1 amp e125 spdt on-mom. 0.4va e225 dpdt on-mom. 0.4va plunger s .282" high m .331" high, snap-fitting s1 .332" high bushing d1 unthreaded d3 .180" high, unthreaded contact material b gold g gold over silver p gold, ma tte-tin r gold over silver , ma tte-tin seal e epoxy and disposable splashproof boot models available terminations a right angle, pc thru-hole av2 vertical right angle, pc thru-hole c pc thru-hole a3 right angle, snap-in, pc thru-hole av3 vertical right angle, snap-in, pc thru-hole v3 .460" high, v -bracket v4 .630" high, v -bracket v6 .460" high, v -bracket v8 .953" high, v -bracket v31 .460" high, snap-in v-bracket v41 .630" high, snap-in v-bracket v61 .460" high, snap-in v-bracket
switch function a-22 dimensions are shown: inches (mm) specifications and dimensions subject to change www.ck-components.com a pu shbu tt on third angle projection e020 series sealed snap-acting momentary pushbutton switches plunger bushing s .282" high d1 unthreaded d3 .180" high unthreaded note: caps available for all plunger options, see page a-27. s1 .332" high m .332" high snap-fitting dpdt 1-2,4-5 1-3,4-6 mom. mom. on on e221 e225 dp spdt 1-2 1-3 mom. mom. on on e121 e125 sp schematic connected terminals pos. 1 pos. 2 switch function pos. 1 pos. 2 model no. no. poles dpdt spdt part number shown: e221sd1cbe not available with s1 actuator. note: disposable splashproof vinyl over actuator and bushing supplied std., see page a-26. terminal nos. for reference only terminal nos. for refer ence only part number shown: e121sd1cge mom. = momentary e121, e221 models with all options when ordered with g or r contact material. ex25 models must be or dered with b or p contact material. ex21 models must be ordered with g or r contact material. not available with d1 bushing. c&k marking this side c&k marking this side
terminations a-23 dimensions are shown: inches (mm) specifications and dimensions subject to change www.ck-components.com pu shbu tt on a third angle projection e020 series sealed snap-acting momentary pushbutton switches pc mounting pc mounting section a-a section a-a pc mo unting c pc thru-hole a3 right angle, snap-in, pc thru-hole a right angle, pc thru-hole a right angle, pc thru-hole a3 right angle, snap-in, pc thru-hole e121sd1age spdt e221sd1age dpdt note: t erminal bend radii and lead-in manufacturing option. note: terminal bend radii and lead-in manufacturing option. spdt and dpdt
a-24 dimensions are shown: inches (mm) specifications and dimensions subject to change www.ck-components.com a pu shbu tt on third angle projection e020 series sealed snap-acting momentary pushbutton switches terminations section a-a section a-a pc mounting pc mounting e121sd1av2ge spdt e221sd1av2ge dpdt av3 vertical right angle, snap-in, pc thru-hole, .150" pitch a v2 ver tical right angle, pc thru-hole, .150" pitch av2 vertical right angle, pc thru-hole, .150" pitch av3 vertical right angle, snap-in, pc thru-hole, .150" pitch note: t erminal bend radii and lead-in manufacturing option. note: terminal bend radii and lead-in manufacturing option.
a-25 dimensions are shown: inches (mm) specifications and dimensions subject to change www.ck-components.com pu shbu tt on a third angle projection e020 series sealed snap-acting momentary pushbutton switches terminations snap-in dim 'a' pc mo unting snap-in dim '' pc mo unting 1 c 2 no 3 nc (0 ,7 6) (1 ,2 7) .0 3 0 x .050 t y p. .1 2 2 d ia . .1 8 5 (4 ,7 0) dim a .2 5 0 (6 ,3 5) .3 6 0 (9 ,1 4) .1 9 2 (4 ,8 8) .1 8 0 (4 ,5 7) .0 2 0 t yp . (0 ,5 1) .1 8 5 t yp . (4 ,7 0) .7 5 0 (1 9 ,0 5 ) .0 5 0 (1 ,2 7) .0 6 0 max. (1 ,5 3) c&k ma rk ing on op p os i te s ide pc mounting v31, v41 ver tical mount , v -bracket , snap-in v3, v4 vertical mount, v-bracket v31, v41 ver tical mount, v-bracket, snap-in v3, v4 vertical mount, v-bracket v6, v8 vertical mount, v-bracket v61, v81 vertical mount, v-bracket, snap-in v3, v31 .460 (11,68) v4, v41 .630 (16,00) dim option code v6, v61 .460 (11,68) v8, v81 .953 (24,21) dim option code v3, v31 .460 (11,68) v4, v41 .630 (16,00) dim option code e121sd3__ge spdt e221sd3__ge dpdt e121sd3__ge spdt
a-26 dimensions are shown: inches (mm) specifications and dimensions subject to change www.ck-components.com a pu shbu tt on third angle projection e020 series sealed snap-acting momentary pushbutton switches terminations contact material seal disposable splashproof boot supplied standard. remove and discard boot only after so ldering and cleaning processes are complete. dim ' ' snap-in pc mounting e epoxy seal and disposable splashproof boot v6, v8 vertical mount, v-bracket v61, v81 vertical mount, v-bracket, snap-in e221sd3v6ge dpdt v6, v61 .460 (11,68) v8, v81 .953 (24,21) dim option code * note: see technical data section of this catalog for rohs compliant and compatible definitions and specifications. 1 cont acts & terminals: copper alloy , with gold plate over nickel plate. 2 n.o. and n.c. contacts: coin silver, with gold plate over nickel plate. 3 common contacts & all terminals: copper alloy, with gold plate over nickel plate. 4 terminals: copper alloy, with matte-tin alloy over nickel plate. note: any models supplied with p, r, b or g contact material are rohs compliant. e121, e221 models with all options when ordered with mandatory g, or r contact material. p or b contact material must be ordered with ex25 models. r or g contact material must be ordered with ex21 models. option code terminal pla ting ratings gold 1 gold 3 matte-tin 4 gold 1 ma tte-tin 4 low level/dry circuit low level/dry circuit or power ex25 models only: 0.4 va max. @ 20 v ac or dc max. ex21 models only: 0.4 va max @ 20 v ac or dc max. or 1 amp @ 120 v ac or 28 v dc. b p g r gold over silver 2,3 cont act ma terial
a-27 dimensions are shown: inches (mm) specifications and dimensions subject to change www.ck-components.com pu shbu tt on a third angle projection e020 series sealed snap-acting momentary pushbutton switches available hardware typical application cap part no. 708901000 white 708902000 black 708903000 red material: nylon finish: gloss cap, snap-fitting plunger part no. 894001000 white 894002000 black 894003000 red material: nylon finish: gloss cap, snap-fitting plunger part no. 894101000 white 894102000 black 894103000 red material: nylon finish: gloss cap part no. 484601000 white 484602000 black 484603000 red material: nylon finish: gloss part no. 798201000 white 798202263 black 798203000 red material: nylon finish: matte cap part no. 752701000 white 752702000 black 752703000 red material: nylon finish: gloss cap part no. 801801000 white 801802000 black 801803000 red material: nylon finish: gloss .047" (1,19) panel thk. p ar t no. 432501000 432502263 432503000 .062" (1,57) panel thk. p ar t no. 432601000 432602263 432603000 .090" (2,29) panel thk. p ar t no. 432701000 432702263 432703000 .125" (3,18) panel thk. p ar t no. 432801000 white 432802263 black 432803000 red note: other cap colors available, consult customer service center. frames snap into panel opening and ar e independent fr om switch mounting. accurate positioning of the pc mounted switch relative to the panel opening is necessary to provide proper clearance between actuator and frame. available in two basic styles and four panel thicknesses .047-.125 in. material: nylon. finish: matte. .2 0 0 dia. (5 , 08 ) .1 2 0 (3 , 05) .1 5 5 (3 , 94)
available hardware a-28 dimensions are shown: inches (mm) specifications and dimensions subject to change www.ck-components.com a pu shbu tt on e020 series sealed snap-acting momentary pushbutton switches panel insert with hole for led part no. 894901000 894902000 894903000 blank panel insert without hole for led part no. 476601000 white 476602000 black 476603000 red above frames (part nos. 432xxxxxx) are also available with insert which accepts led for indicator light assembly. order insert separately from frame. blank insert panel (without hole for led) also available. led not included. p anel inserts special colors, custom markings available, consult customer service center. third angle projection
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