industrial 16m m diam e ter carbon composition rotar y potentiom e t e r serie s 2 7 0 electrical and mechanical specifications resistance range 500 ohms through 2 megohms, linear resistance t olerance power rating angle of rotation total rotation (potentiometer and switch) without switch : 300 with switch : 315 effective electrical angle (potentiometer) without switch : 300 with switch : 290 1 - 9 ? 2 0 1 0 c t s c o r p o r a t i o n . a l l r i g h t s r e s e r v e d . i n f o r m a t i o n s u b j e c t t o c h a n g e . 08/06/10 c t s e l e ctr o c ompo n e n t s www.ctscorp.c o m ? electrocomponents d a t a s h e e t rotary potentiometer 30%, 20%, 10% 5k ohms through 200k ohms, audio dielectric strength 750 vac for 1 minute maximum operating voltage 500 vdc insulation resistance 100 megohms minimum @ 250 vdc rotational torque 36-360 gf-cm stop strength 5.76 kgf-cm minimum push-pull strength of shaft 10 kg for 10 seconds rotational li f e 10 k cycles operating temperature -10c to +70c solder heat resistanc e 260c for 5 seconds features - bushing - twist or bend tab - snap-in pc bracket - pc terminal mounting information - bushing - twist tab - bend tab - snap-in pc bracket - pc terminal 1/4 watts @ 55c (resistance up to 100k ohms) 1/5 watts @ 55c (resistance above 100k ohms)
electrical and mechanical specifications shaft and bushing information metal shaft and bushing single t f a h s e n o h t i w r e t e m o i t n e t o p n o i t c e s l a u d r o molded shaft and bushing single section potentiometer with one shaft shaft diameter inch mm inch mm .125 3.20 1/4" C 32unef-2a m7 x .75p 2 - 9 ? 2010 cts corporation. all rights reserved. information subject to change. 08/06/10 cts electrocomponents www.ctscorp.com bushing diameter outer shaft diameter inch mm inch mm .236 6.00 .156 4.0 .250 6.35 .125 3. .2 inner shaft diameter inch mm bushing diameter 3/8" C 32unef-2a m9 x.75p concentric tandem potentiometer with two shafts 3/8" C 32unef-2a m8 x.75p shaft with twist tab, bend tab, snap-in pc bracket, or pc terminal all metal or molded shaft diameters can be used except .187(4.7mm), which can be used with snap-in pc bracket only. .187 4.70 3/8" C 32unef-2a m7 x .75p .236 6.00 3/8" C 32unef-2a m8 x .75p .250 6.35 3/8" C 32unef-2a m9 x .75p shaft diameter inch mm inch mm .156 4.00 1/4" C 32unef-2a m7 x .75p bushing diameter .187 4.70 3/8" C 32unef-2a m7 x .75p .236 6.00 3/8" C 32unef-2a m8 x .75p .250 6.35 3/8" C 32unef-2a m9 x .75p .156 4.00 1/4" C 32unef-2a m7 x .75p terminal information t: solder lug perpendicular to shaft. or, solder lug formed 60 to the rear. u: pc terminals formed 90 forward toward mounting surface. terminals extend .187" (4.7mm) beyond mounting surface. v: pc terminals formed 90 to the rear, away from panel mounting. terminals extend .442" (11.2mm) from mounting surface. standard: t: solder lug formed 90 to the rear on single section and formed 60 on multi-section. x: pc terminals standard .438" (11.1mm) from center line of control to pc board, straight terminals extend .156" (4.0mm) into pc board. special: w: wire wrap terminals .156" (4.0mm) terminal extension beyond base, formed 60 to the rear.
electrical and mechanical specifications electrical series type rating 5a @ 20 vdc 3a @ 125 vac (ul approved) dimension: mm inch dimension: mm inch electrical series type rating push on-pull off demi momentary contact 3a @ 20 vdc push on switch actuating torque - 2 to 10 in. oz. (144 to 720gf-cm) 9.1 .358 0.4 .016 3.2 .126 15.9 .626 7 . 2 1 = x 5 . 5 1 = y 0 0 5 . 0 1 6 . 3.6 .142 4.37 4.37 .172 .172 ?1.40 min. (2)hl's .055 15.3 .602 0.8 0.4 4.37 4.37 4.50 4.50 .031 .016 .172 .172 .177 .177 ?1.40 min. (2)holes .055 0.2 .008 0.4 .016 2 5 6 . 6 . 6 1 .205 5.2 .150 3.8 9.0 .354 t= ?2.41 .095 holes(2) 11.15 .439 057 rotary demi 3a @ 20 vdc 3 - 9 ? 2010 cts corporation. all rights reserved. information su bject to change. 08/06/10 cts electrocomponents www.ctscorp.com optional power switches (all spst)
dimension: mm inch 4 - 9 ? 2010 cts corporation. all rights reserved. information su bject to change. 08/06/10 cts electrocomponents www.ctscorp.com mounting surface ref. ?1.4 min. ?15.9 (3) holes 1 2 3 7.950.05 clearance for bushing. clearance for 2.4 x 1.0(.094 x .039) locating lug. (2)holes. .313.002 .313.002 7.950.05 wiper 13 2 clockwise circuit ccw cw recommended pcb layout 9.53 .375 .626 l0.8 .031 3/8-32unef-2a mounting surface 2.39 .094 7.95 .313 7.95 .313 11.13 15.09 .438 .594 .172.002 4.370.05 .172.002 4.370.05 .162 4.09 .055 270x metal shaft, bushing mount, printed circuit x type terminals mounting surface 3 2 1 9.2 0.4 ?15.9 .626 9.53 .375 l0.8 .031 3/8-32unef-2a .362 .16 2.39 .094 7.95 .313 15.9 .626 15.9 .626 7.95 .313 11.13 .438 11.30 .445 wiper 13 2 clockwise circuit ccw cw 8.000.05 .315.002 .315.002 8.000.05 clearance for bushing recommended pcb layout ?1.4 min. (3) holes .172.002 4.370.05 .172.002 4.370.05 .055 270u metal shaft, bushing mount, printed circuit u type terminals mounting hole detail .016 0.4 "a" .016 0.4 "a" dimension: mm inch clearance for 2.4 x 1.0 (.094 x .039) mounting lug. (2)holes. .445.002 11.300.05
mounting surface ref. ?1.4 min. ?15.9 mounting hole detail (3) holes 1 2 3 "a" 7.950.05 clearance for bushing. clearance for 2.4 x 1.0(.094 x .039) locating lug. (2)holes. .313.002 .313.002 7.950.05 wiper 13 2 clockwise circuit ccw cw recommended pcb layout 9.53 .375 .626 .016 0.4 l0.8 .031 3/8-32unef-2a mounting surface 2.39 .094 7.95 .313 7.95 .313 17.00 .669 .162 4.09 .055 275x metal shaft, bushing mount, printed circuit x type terminals 15.9 .626 12.5 4.5 .177 .492 .197.002 5.000.05 .197.002 5.000.05 5 - 9 ? 2010 cts corporation. all rights reserved. information su bject to change. 08/06/10 cts electromonponents www.ctscorp.com 1 23 center lines of control ?15.9 .626 9.53 .375 l0.8 .031 mounting surface 3/8-32unef-2a 11.2 0.4 .441 .16 2.39 .094 7.95 .313 7.95 .313 12.29 .484 15.9 .626 wiper 13 2 clockwise circuit ccw cw ?1.4 min. (3) holes .172.002 4.370.05 .484 12.29 .055 .172.002 4.370.05 7.950.05 clearance for bushing. clearance for 2.4 x 1.0(.094 x .039) locating lug. (2)holes. .313.002 .313.002 7.950.05 270v metal shaft, bushing mount, printed circuit v type terminals dimension: mm inch recommended pcb layout mounting hole detail .016 0.4 "a" dimension: mm inch
7.950.05 clearance for bushing. clearance for 2.4 x 1.0(.094 x .039) locating lug. (2)holes. 7.95 15.9 2.39 11.13 13.1 max. 9.53 ?15.9 "a"0.4 l0.8 mtg. surface 7.95 .375 .031 .016 .626 .313 .438 .516 .626 .094 .313 .313.002 .313.002 7.950.05 270t metal shaft, bushing mount, solder lug t type terminals dimension: mm inch wiper 13 2 clockwise circuit ccw cw 1 2 3 mounting hole detail 3/8-32unef-2a 6 - 9 ? 2010 cts corporation. all rights reserved. information su bject to change. 08/06/10 cts electromonponents www.ctscorp.com dimension: mm inch 270t-2 dual section, metal shaft, bushing mount, solder lug t type term inals .313 clearance for clearance for 2.39/.094 x 1.0/.040 loc ating lug. (2)holes. 7.95 bushing mtg. surface 18.64 11.13 7.95 7.95 .734 l 0.8 .031 .016 0.40 a .313 7.95 .313 .313 .438 2.39 .094 7.95 .313 13.1 .516 15.9 .626 max. 3 2 1 wiper 13 2 clockwise circuit ccw cw mounting hole detail 3/8-32unef-2a
dimension: mm inch 270x-057x metal shaft, bushing mount, printed circuit x type terminals, rotary 057 switch .313 clearance for clearance for 2.39/.094 x 1.0/.040 locating lug. (2)holes. 7.95 bushing mtg. surface 9.53 11.13 7.95 7.95 ?1.4 min 5hl's. mtg. surface .375 3.81 .150 16.6 .652 l 0.80 .031 .016 0.40 a .313 7.95 .313 .313 .438 2.39 .094 7.95 .313 5.72 .225 .161 4.09 4.37 .172 4.37 .172 4.50 .177 15.09 .594 11.15 .439 3 2 1 wiper 13 2 clockwise circuit ccw cw 7 - 9 ? 2010 cts corporation. all rights reserved. information subject to change. 08/06/10 cts electrocomponents www.ctscorp.com rp "demi" switch cw ccw circuit clockwise s2 s1 13 2 wiper s2 3 2 1 s1 ?15.9 mounting hole detail 7.950.05 clearance for bushing. clearance for 2.4 x 1.0(.094 x .039) locating lug. (2)holes. .313.002 .313.002 7.950.05 18.7 .736 .626 l0.8 .031 3/8-32unef-2a mounting surface 7.95 .313 11.13 .438 15.9 .626 dimension: mm inch 270t-demit metal shaft, bushing mount, solder lug t type terminals, demi switch .016 0.4 "a" mounting hole de tail 3/8-32unef-2a /
8 - 9 ? 2010 cts corporation. all rights reserved. information subject to change. 08/06/10 cts electrocomponents www.ctscorp.com y type a .125 (3.18 mm) .156 (3.96 mm) r type diameter b .125 (3.18 mm) .156 (3.96 mm) f x y .250 (6.35 mm) .250 (6.35 mm) type diameter c .125 (3.18 mm) .156 (3.96 mm) s x .047 (1.19 mm) y .039 (1.00 mm) .039 (1.00 mm) x y dia. diameter g .187 (4.75 mm) .236 (6.00 mm) x .250 (6.35 mm) p dia. h .187 (4.75 mm) .236 (6.00 mm) l .472 (12.0mm) .250 (6.35 mm) d .250 (6.35 mm) .187 (4.75 mm) v* .375 (9.52 mm) .313 (7.95 mm) .236 (6.00 mm) w** .472 (12.0 mm) z y x type diameter .236 (6.00 mm) n x .342 (8.70 mm) y .039 (1.00 mm) z 18 teeth x .109 (2.77 mm) .109 (2.77 mm) .156 (3.96 mm) .156 (3.96 mm) .156 (3.96 mm) .177 (4.50 mm) .177 (4.50 mm) .187 (4.75 mm) j .039 (1.00 mm) .236 (6.00 mm) m .039 (1.00 mm) .250 (6.35 mm) e .039 (1.00 mm) .250 (6.35 mm) t .279 (7.10 mm) .062 (1.57 mm) 24 teeth shaft diameter and trim .047 (1.19 mm) .047 (1.19 mm) .047 (1.19 mm) .047 (1.19 mm) knurled & slotted slotted flatted round *molded shaft, fms .875 (22.2 mm), not available with switch **molded shaft, fms .984 (25.0 mm), with rotary switch only *molded shaft, fms .500 (12.7 mm), not available with switch (metal shaft) type diameter .236 (6.00 mm) k** x .200 (5.08 mm) y .046 (1.17 mm) z 18 teeth .187 (4.75 mm) u* .062 (1.57 mm) .046 (1.17 mm) 18 teeth **molded shaft, fms .500 (12.7 mm), with rotary switch only z y x knurled & slotted (molded shaft)
shaft length l metal shafts examples 20 C .625" 24 C .750" 28 C .875" 32 C 1.000" terminal style t C solder lug x Cpc u C formed to front v C formed to rear * s f r v j s f e ! for 275 t f s j f t ordering information 270/275 t 2 20 r 103 b 1 a 1 resist tol a C 10% b C 20% c C 30% switch type a C none b C spst rotary shaft diameter and trim a C .125" dia. round b C .125" dia. flatted c C .125" dia. slotted r C .156" dia. round f C .156" dia. flatted s C .156" dia. slotted g C .187" dia. round h C .187" dia. flatted j C .187" dia. slotted x C .236" dia. round l C .236" dia. flatted m C .236" dia. slotted n C .236" dia. slotted & kunrled p C .250" dia. round d C .250" dia. flatted e C .250" dia. slotted t C .250" dia. slotted & kunrled taper 1 C linear 2 C 10% aud 3 C 10% ccw aud specials 1 C left locating lug 2 C 50% detent with left locating lug 4 C right locating lug 5 C no locating lug resistance code examples code resistance 501 500 ohms 102 1k 252 2.5k 502 5k 103 10k 253 25k 503 50k 104 100k * * c C demi momemtary d C demi push-pull 9 - 9 ? 2010 cts corporation. all rights reserved. information su bject to change. 08/06/10 cts electrocomponents www.ctscorp.com 3 C 50% detent with right locating lug mounting style a brass bushing mount length examples 2 C .250" 3 C .375" 8 C 1.000" 1 C twist tab 3/8" C 32unef-2a length increment: 1/32 twist tab mount bracket mount 0 C bracket metal shaft consult cts for custom or not listed features including shaft, bushing, longer life cycles, solderable cover, anti-static desig n, etc. molded shaft molded shaft note : 16 C .500" (shaft trim u & k only) length increment: 1/32 16 C .500" *u C .187" dia. slotted & kunrled (.500 shaft length only) *v C .187" dia. flatted (.875 shaft length only) **w C .236" dia. flatted 32 C .984" (shaft trim w only) 28 C .875" (shaft trim v only) (.984 shaft length only) * molded shaft not available with swtich ** molded shaft with rotary switch only **k C .236" dia. slotted & kunrled (.500 shaft length only)
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