3u series tiny pushwheel switches n t h u m b w h e e l & p u s h w h e e l nC dimensions are shown: inch (mm) specifications and dimensions subject to change www.ck-components.com f eatures/benefits ? tiny size saves space ? 10 and 16 position models available ? e sd clip available on select models ? s nap-in front mount saves assembly time t ypical applications ? computer peripherals ? test equipment ? i nstrumentation specifications contact rating: carry: 1 amp continuous. switch: 0.4 va max., 100 ma max., 28 v dc max. operating voltage: 50 mv to 28 v dc. electrical life: 1,000,000 actuations. contact resistance: below 300 m typ. @ 2-4 v dc, 100 ma. insulation resistance: 10 9 min. (dry). dielectric strength: 500 vrms min. @ sea level between common terminal and any output. operating temperature: C0?oto 65?. materials housing: polyester (ul 94v-0). pushwheel: polycarbonate. pushbutton: polyester (ul 94v-0). rotor contacts: gold over nickel over copper alloy. stator contacts: hard gold over nickel over copper on epoxy fiberglass. note: specifications and materials listed above are for switches with standard options. for information on specific and custom switches, consult customer service center. note: all models listed are rohs compliant. see technical data section of this catalog for rohs compliant and compatible definitions and specifications. build-a-switch to order, simply select desired option from each category and place in the appropriate box. available options are shown and described on pages nC thru n?C for additional options not shown in catalog, consult customer service center . consult factory for illumination availability. series 3u t iny pushwheel number of sections 0 switch section 1 1 switch section 2 2 switch sections 3 3 switch sections 4 4 switch sections 5 5 switch sections 6 6 switch sections 7 7 switch sections 8 8 switch sections 9 more than 8 switch sections dust lens 0 no lens 2 dust lens function code 21 bcd 1-2-4-8 71 bch, 16 position terminations 0 short pc board n short pc board with pins* 9 any combination color/marking/stops 0 ma tte black housing, gloss black wheel, extended actuator, white vertical characters, black pushbutton, no stops 9 combination of body colors, wheel colors, marking and/or stops a matte black housing, gloss black wheel, extended actuator, white horizontal characters, black pushbutton, no stops c matte black housing, gloss black wheel, recessed actuator, white vertical characters, black pushbutton, no stops e matte black housing, gloss black wheel, recessed actuator, white horizontal characters, black pushbutton, no stops mounting style 0 snap-in, front mount * note: termination option n (rohs compliant) replaces termination option 3 (non-rohs compliant).
3u series tiny pushwheel switches series number of sections function code mounting style n t h u m b w h e e l & p u s h w h e e l nC dimensions are shown: inch (mm) specifications and dimensions subject to change www.ck-components.com n = number of sections. 0 snap-in front mounting 71 binary coded hexadecimal, 16 position 21 bcd 1-2-4-8, 10 position 9 more than 8 switch sections, specify on configuration form, page nC and consult customer service center. 1-8 number of switch sections in assembly, includes endplates. 0 switch section only, no endplates. 3 u 1/2" tiny pushwheel with extended actuator n ote: e ndplates and blank sections available separately, see page nC. available terminations: 0, n see figs. 2 & 3, page n-5. n = number of sections recommended panel thickness: .039-.156 (0,99-3,95) available terminations: 0, n see fig. 2, page n-5. note: esd pin available, consult customer service center. for terminal location diagrams, see page nC.
3u series tiny pushwheel switches terminations color/marking/stops n t h u m b w h e e l & p u s h w h e e l a ma tte black housing (gloss black wheel with white horizontal characters, extended actuator , black pushbuttons, no stops.) e matte black housing (gloss black wheel with white horizontal characters, recessed actuator, black pushbuttons, no stops.) c ma tte black housing (gloss black wheel with white vertical characters, recessed actuator, black pushbuttons, no stops.) 9 special colors, markings for housing or wheel, stops (specify on configura tion form, page n-7 and consult customer service center .) 0 ma tte black housing (gloss black wheel with extended actuator , white vertical characters, black pushbuttons, no stops.) 9 any combination of termination configuration or special terminations. n short pc board, type 0 with solder pins 0 short pc board pc board 1/32" (0,79) thick. note: all terminal holes shown may not be present for all function codes consult customer service center. note: see function codes, page nC for signal locations. terminal location numbers specify on configuration form, page n-7 and consult customer service center. extended actuator recessed actuator 3 ve rtical cha racte rs 3 horizontal characters fig. 1 solder pins fig . 2 nC dimensions are shown: inch (mm) specifications and dimensions subject to change www.ck-components.com note: termination option n (rohs compliant) replaces termination option 3 (non-rohs compliant).
3u series tiny pushwheel switches dust lens available hardware n t h u m b w h e e l & p u s h w h e e l 2 d ust lens (protects character face of the wheel from abrasion and dust.) 0 no lens blank section, .302 thk. (replaces active section.) part no. 1 23b02000 black end plates left-with hole right-with pin one left and one right p iece required for complete assembly . part no. 1 13b02000 left-black 1 14b02000 right -black nC dimensions are shown: inch (mm) specifications and dimensions subject to change www.ck-components.com
3u series tiny pushwheel switches n t h u m b w h e e l & p u s h w h e e l nC dimensions are shown: inch (mm) specifications and dimensions subject to change www.ck-components.com q uality cont rol inst ructions p roduction app roval date c&k part number rev. initials date 3 catalog part n o. c ompany name customer print revision: address tel.# customer conta ct date originated by sales rep. details: q. c. app roval date configuration form gray shaded areas to be filled in by customer service. sheet _____ of _____ c & k p a r t n u m b e r 10 11 1 2 34 5 67 8 9 pushwheel sections describe in app rop riate row special inst ructions o r specifications: 3 u function codeC terminationsC color/marking/stops/sealC illumination for switches with more than 11 sections, continue on additional sheet s. enter option codes in appropriate boxe s. function codes include blank sections (see page m-4). no. of sec. C 3 u C 3 u C 3 u C 3 u C 3 u C 3 u C 3 u C 3 u C 3 u C 3 u C u C C CC C C C C C C C
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