1 / 2 " (12.7 mm) single - turn wirewound servo mount type precision potentiometer model 142 vishay spectrol www.vishay.com for technical questions, contact: sfer@vishay.com document number: 57039 90 revision: 28-jun-07 features ? ohmic value range: 50 up to 20 k ? smallest size available: 12.7 mm ? center tap on request ? custom shafts available on request rohs compliant electrical specifications parameter total resistance 50 to 20 k to l e r a n c e 5 % absolute minimum resistance linearity x total resistance or 0.5 , whichever is greater linearity (independent) 1.0 % noise 100 enr power rating 2 w at 40 c ambient derating linearly to zero at 125 c insulation resistance 1000 m min. 500 v dc dielectric strength 1000 v rms , 60 hz electrical angle 350 + 0 - 4 end voltage linearity x total applied voltage for total resistance above 20 ; 2.0 % of total applied voltage for 20 and below material specifications shaft stainless steel, non magnetic non-passivated housing aluminum, anodized rear lid molded glass filled thermoset plastic terminals brass, gold plated environmental specifications vibration 20 g thru 2000 hz shock 50 g salt spray 96 h rotational life 500 000 shaft revolutions load life 900 h temperature range - 55 c to + 125 c (operating) ordering information/description 142s 0 0 10k bo10 model mechanical options special feature ohmic value packaging 0 . continuous rotation, plain shaft (std.) 0 . standard torque 1 . center tap (10k max. rt) box of 10 pieces sap part numbering guidelines 142s 0 1 502 b10 model mechanical options special feature ohmic value packaging 1: with center tap 502 = 5k box of 10 pieces
model 142 1 / 2 " (12.7 mm) single - turn wirewound servo mount type prec ision potentiometer vishay spectrol document number: 57039 for technica l questions, contact: sfer@vishay.com www.vishay.com revision: 28-jun-07 91 dimensions in inches (millimeters) mechanical specifications parameter rotation 360 continuous bearing type torque (maximums) starting running dead zone ball bearing 0.075 oz. - in (5.40 g - cm) 0.05 oz. - in (3.60 g - cm) 0.20 oz. - in (14.40 g - cm) weight 0.3 oz. (8.50 g) maximum runouts (maximum) shaft (tir) pilot dia. (tir) lateral (tir) shaft end play shaft radial play 0.002" (0.05 cm) 0.002" (0.05 cm) 0.002" (0.05 cm) 0.004" (0.10 cm) 0.002" (0.05 cm) power rating chart marking unit identification units shall be marked with manufacturer?s name, model number, resistance value and tolerance, circuit diagram, terminal identification, linearity and data code 0 20 40 60 80 100 120 140 160 ambient temperature in c 0 1 2 rated power in w resistance element data std resistance values ( ) reso- lution (%) ohms per turn maximum current at 40 c ambient (ma) maximum voltage across coil (v) wire temp. coef. (ppm/c) 50 0.542 0.271 200.0 10.0 20 100 0.431 0.431 141.0 14.1 20 200 0.361 0.722 100.0 20.0 20 500 0.312 1.56 63.2 31.6 20 1k 0.255 2.55 44.7 44.7 20 2k 0.197 3.94 31.6 63.2 20 5k 0.170 8.50 20.0 100.0 20 10k 0.147 14.7 14.1 141.0 20 20k 0.105 21.0 10.0 200.0 20 150 60 center tap available as spec standard feature ? 0.4370 mtg. (11.10) 0.0005 ? 0.1248 (3.17) + 0.000 - 0.0003 ? 0.500 (12.70) 0.500 (12.70) + 0.010 0.062 (1.57) mtg. face 0.625 (15.88) 0.062 (1.57) 0.062 (1.57) 0.152 (3.86) center tap option tolerances: unless otherwise noted. decimals 0.005 angles 2 120 typ. 0.133 r (3.38) cw ? 0.375 (9.52)
document number: 91000 www.vishay.com revision: 18-jul-08 1 disclaimer legal disclaimer notice vishay all product specifications and data are subject to change without notice. vishay intertechnology, inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, ?vishay?), disclaim any and all liability fo r any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. vishay disclaims any and all li ability arising out of the use or application of any product describ ed herein or of any information provided herein to the maximum extent permit ted by law. the product specifications do not expand or otherwise modify vishay?s terms and conditions of purcha se, including but not limited to the warranty expressed therein, which apply to these products. no license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of vishay. the products shown herein are not designed for use in medi cal, life-saving, or life-sustaining applications unless otherwise expressly indicated. customers using or selling vishay products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify vishay for any damages arising or resulting from such use or sale. please contact authorized vishay personnel to obtain written terms and conditions regarding products designed for such applications. product names and markings noted herein may be trademarks of their respective owners.
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