model 78 she www.vishay.com vishay sfernice revision: 27-mar-15 1 document number: 57105 for technical questions, contact: sferprecisionpot@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 single turn servo mount hall effect sensor in size 09 (22.2 mm) features ? accurate linearity down to: 0.5 % ? all electrical angles available up to: 360 ? (no dead band) ? very long life: greater than 50m cycles ? non contacting technology: hall effect ? model dedicated to hi gh quality applications ? material categorization: fo r definitions of compliance please see www.vishay.com/doc?99912 ? quick reference data sensor type rotational, single turn hall effect output type wires market appliance professional dimensions 7/8" (22.2 mm) electrical specifications parameter standard special electrical angle 90, 180, 270, 360 any other angle upon request linearity 1 % 0.5 % supply voltage 5 v dc 10 % other upon request supply current 10 ma typ./16 ma max. 16 ma for pwm output output signal analog ratiometric 10 % to 90 % of v supply or pwm 1 khz, 10 % to 90 % duty cycle other upon request over voltage protection +20 v dc reverse voltage protection -10 v dc load resistance recommended min. 1 k ? for analog output and pwm output hysteresis static 0.2 max. mechanical specifications parameter mechanical travel 360 conti nuous, stops upon request bearing type 2 ball bearings standard ip 50; other on request ordering information/description 78 she 1 a 1 w a 1s16 xxxx bo 1 e1 model number of cups linearity electrical angle output type output signal shaft type special request packaging lead finish 1: 1 cup 2: 2 cups 3: 3 cups 4: 4 cups a: 1 % b: 0.5 % 1: 90 2: 180 3: 270 4: 360 9: other angles t: turrets w: wires z: custom a: analog cw b: analog ccw c: pwm cw d: pwm ccw z: other output 0: 6 mm 1: 6.35 mm 2: 3.175 mm 9: special p: plain s: slotted z: other type box of 1 piece shaft length from mounti ng face standard: 16 mm sap part numbering guidelines 78 she 4 b 9 t c 2p22 xxxx model number of cups (signals) linearity electrical angle output type output signal shaft type special request
model 78 she www.vishay.com vishay sfernice revision: 27-mar-15 2 document number: 57105 for technical questions, contact: sferprecisionpot@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 v out analog operating temperature 85 c 125 c diagnostic high level 96 % min. 96 % min. diagnostic low level 2 % max. 4 % max. v out pwm cw v out (% v supply ) v out (% v supply ) diag high level diag high level 90 % 90 % 10 % diag low level 10 % diag low level 0 theta (position) 0 theta (position) diagnostic low area diagnostic high area diagnostic low area diagnostic high area ccw cw v out (% v supply ) 97 % min. 1.5 % max. 0 t low t: periodicity t high duty cycle = t high t time (s)
model 78 she www.vishay.com vishay sfernice revision: 27-mar-15 3 document number: 57105 for technical questions, contact: sferprecisionpot@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 note ? nothing stated herein shall be construed as a guarantee of quality or durability. diagnostic modes failure v out analog r pull-up v out analog r pull-down v out pwm r pull-up = 1 k ? v pull-up = v supply = 5 v 1: broken gnd diagnostic high area diagnostic low area > 97 % v supply without modulation 2: broken v out diagnostic high area diagnostic low area > 97 % v supply without modulation 3: broken v supply diagnostic high area diagnostic low area > 97 % v supply without modulation over voltage v supply > 7 v diagnostic high area diagnostic low area > 97 % v supply without modulation under voltage v supply < 2.7 v diagnostic high area diagnostic low area > 97 % v supply without modulation v supply v pull-up r pull-up v out gnd cut off sensor v pull-up can be independent to v supply 1 2 3 environmental specifications vibrations 20 g from 10 hz to 2000 hz, en 60068-2-6 shocks 3 shocks/axis; 50 g half a sine 11 ms, en 60068-2-7 operating temperature range -45 c; +125 c life > 50m of cycles rotational speed (max.) 120 rpm immunity to radiated el ectromagnetic disturbances 200 v/m 150 khz/1 ghz, iec 62132-2 part 2 (level a) immunity to power fr equency magnetic field 200 a/m 50 hz/60 hz, en 61000-4-8 (level a) radiated electromagnetic em issions 30 mhz/1 ghz < 30 db v/m, en 61000-6-4 (level a) electrostati c discharges contact discharges: 4 kv air discharges: 8 kv, en 61000-4-2 materials housing thermoplastic housing shaft stainless steel output 3 turrets or 3 lead wires (awg 22)
model 78 she www.vishay.com vishay sfernice revision: 27-mar-15 4 document number: 57105 for technical questions, contact: sferprecisionpot@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 dimensions in millimeters 16 0.8 15.9 22 max. ? 22.3 max. ? 19.05 max. 0 - 0.013 ? 3.175 0 - 0.013 1.6 1.6 1.5 min. ? 19.8 max. 78 she (redundant: 2 signals) 78 she (1 signal) cw or ccw according to output mode choice v supply = 3 v out = 2 gnd = 1 view from shaft side general tolerance: 0.5 mm 30 2 30 2 15.4 max. 1 2 3 model 78 she ...t (output by turrets) 16 0.8 19 min. ? 22.3 max. ? 19.05 max. 0 - 0.013 ? 3.175 max. 0 - 0.013 1.6 1.6 1.5 min. 25 max. ? 19.8 max. 10 max. shrink tubing gaine thermoformable 78 she (redundant: 2 signals) 78 she (1 signal) cw or ccw according to output mode choice v supply = green wire v out = red wire gnd = yellow wire view from shaft side general tolerance: 0.5 mm model 78 she ...w (output by wires)
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