precision, long-life compact 12mm size series 291 1 - 3 ? 2011 cts corporation. all rights reserved. information subject to change. 7/17/12 cts electrocomponents www.ctscorp.com data sheet optical encoder ? electrocomponents ? package size (12 x 14 x 7 mm) ? 3 million life cycles (no detent) electrical and mechanical specifications operating voltage 5.0 0.25 vdc supply current 5.0 vdc @ 30ma maximum push-pull strength of shaft 20 kg minimum for 10 seconds ? 1 million life cycles(with detent) features optical encoder encoder: special consult cts for custom features not listed terminal pull-out strength 6 kg minimum for 10 seconds solder heat resistance 350c for 5 seconds mechanical vibration 15g, ( mil-std-883f-2004) mechanical shock 3.3 0.125 vdc output code 2-bit quadrature channel a leads channel b by 90 electrically during clockwise rotation of the shaft 3.3 vdc @ 24ma maximum temperature range operating: - 40c to 85c storage: - 55c to 100c rotational life (@30 rpm) 3 million cycles (no detent) 1 million cycles (with detent) resolution 6, 8 pulses per revolution durable metal shaft & bushing ? optional momentary switch ? ? rohs compliant ? multiple options for terminations, resolution,cables, voltage rotational torque detent options 0, 24, 32 minimum sink current 2.0 ma for 5.0 vdc 1.0 ma for 3.3 vdc running: 20 10 gf-cm power consumption 150 mw maximum for 5.0 vdc 80 mw maximum for 3.3 vdc detent: 140 50 gf-cm ( 24 detents) 100 50 gf-cm ( 32 detents) 100g, ( mil-std-883f-2004)
2 - 3 7/17/12 cts electrocomponents www.ctscorp.com ? 2011 cts corporation. all rights reserved. information subject to change. type 291v 2-bit encoder with momentary switch, shaft perpendicular to pc board electrical and mechanical specifications (continued) switch contact resistance 10 maximum switch rating 5 vdc @ 10 ma switch travel actuation force optional momentary switch: dimension: inch mm .031 0.79 .250 6.35 ? .218 5.53 3/8-32unef-2a thread .291 7.40 .047 1.19 .488 12.40 .281 7.13 r .250 6.35 .541 13.75 type 291c 2-bit encoder with momentary switch, cable, and connector .246 6.25 2 3 4 5 6 3/8 32 unef-2a thead 1 ? .488 12.40 .541 13.75 .047 7.13 .281 7.13 6.35 510 110 grams switch life 0.5 0.25 mm b l b l 6.35 cent. pins are 0.4 square general tolerance : r .002 0.05 .002 0.05 .015 0.38 .250 6.35 .002 0.05 .250 6.35 .002 0.05 .250 6.35 .002 0.05 .218 .002 5.53 0.05 .250 .291 7.40 .031 0.79 cable length see termination options .250 .050 1.27 .010 inch 0.25 mm general tolerance : .010 inch 0.25 mm connector is amp p/n 215083-6 or equivalent 2 3 4 5 6 1 .148 3.75 .024 0.60 .148 3.75 .024 0.60 cent. .354 9.00 .423 10.75 .014 0.35 .014 0.35 .014 0.35 cent. .354 9.00 standard: 1 million actuations minimum special: consult cts for custom life requirements.
ordering information 3 - 3 7/17/12 cts electrocomponents www.ctscorp.com ? 2011 cts corporation. all rights reserved. information subject to change. shaft trim dimension: inch mm electric circuitry and waveform standard quadrature 2-bit code low low 3 8 ppr/ 32 detents cw 6 4 high high 2 5 power ground switch terminal 5 3 2 channel b channel a switch terminal 4 6 pin# * external pull-up resistors required for operation(2.2k ohm) nominal detent position inch r - round f - flatted shaft trim "l" shaft length mm inch a5 - 15mm b0 - 20mm b5 - 25mm c0 - 30mm 3/8-32 unef-2a 20 - .625" position number 1. 8 ppr/32 detents is shown 2. code repeats every 4 positions 3. channel a leads channel b in cw direction and lags in ccw direction 1 pulse all all 6.35mm dia. .250" dia. 24 - .750" 28 - .875" 32 - 1.000" 22 - .688" output combination 832 - 8ppr, 32-detents 624 - 6ppr, 24-detents 832 800 - 8ppr, no detents 600 - 6ppr, no detents operating voltage a - 5.0v a - 3.3v b switch b - momentary b a - none termination 1 1 z y 0 - .312 3 - .375 "b" bushing length v1 - .050 pitch center pins form to rear with .144 length c4 - .050 pitch center 4 ribbon cable with connector c5 - .050 pitch center 5 ribbon cable with connector c6 - .050 pitch center 6 ribbon cable with connector connector is amp p/n 215083-6 or equivalent 291 v1 0 22 f x r - round x imperial shaft metric shaft .250 6.35 f - flatted x y imperial shaft metric shaft .250 6.35 .218 5.53 z .250 6.35 mm d - 9.53mm m9x.75p r * r * channel a channel b 2 - .250 x
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