document number: 51027 for technica l questions, contact: sfer@vishay.com www.vishay.com revision: 26-jun-07 79 t18 vishay sfernice 3/4" rectangular multi-turn cermet trimmer features ? industrial grade ? 0.50 w at 70 c ? mil-r-22097 ? tests according to cecc 41 000 dimensions in millimeters t18 * to be measured at base level shaft circuit diagram tolerances unless otherwise specified 0.5 fine pitch scre w for o u tstanding setting a b ility metal collector impro v es po w er dissipation thermoplast b ottom protects track form mechanical stresses d u e to sealing resin connections soldered to track m u lti-fingered w iper for lo w contact resistance large size saddle to pre v ent b ack-lash high performance plastic case 19 0.5 4.5 0.5 7.6 0.2* 5.1 0.2* 3.15 0.5* 123 0.2 0. 8 1.5 0.5* 4.7 0.2 4. 8 0.2 2.54 0.2* 6.4 0.2 base level ? 2.5 0.6 0.6 a c b c w (2) (3) (1) rohs compliant
www.vishay.com for technical ques tions, contact: sf er@vishay.com document number: 51027 80 revision: 26-jun-07 t18 vishay sfernice 3/4" rectangular mult i-turn cermet trimmer mechanical specifications mechanical travel 18 turns 5 operating torque (max. ncm) 2 end stop torque clutch action unit weight (max. g) 1 wiper (actual travel) positioned at approx. 50 % environmental specifications temperature range - 55 c to + 125 c climatic category 55/125/56 sealing fully sealed container ip67 power rating chart electrical specifications resistive element cermet electrical travel 15 turns 1 resistance range 10 to 2.2 m standard series e3 1 - 2.2 - 4.7 and 1 - 2 - 5 tolerance standard 10 % on request 5 % power rating linear 0.50 w at + 70 c logarithmic not applicable temperature coefficient see standard resistance element table limiting element voltage (linear law) 250 v contact resistance variation 2 % rn or 1 end resistance (typical) 1 dielectric strength (rms) 1000 v insulation resistance (500vdc) 10 6 m 0 20 40 100 125 140 70 60 0.50 0 ambient tempera ture in c power in w 8 0 0.25 0.75 performance tests conditions typical values and drifts rt rt (%) r 1-2 r 1-2 (%) load life 1000 hours at rated power 90'/30' - ambient temp. 70 c 1 % (3 % + 5 ) contact res. variation: < 3 % rn climatic sequence phase a dry heat 125 c phase b damp heat phase c cold - 55 c phase d damp heat 5 cycles 0.5 % 1 % long term damp heat 56 days 0.5 % 1 % dielectric strength: 1000 v rms insulation resistance: > 10 4 m rapid temperature change 5 cycles - 55 c at + 125 c 0.5 % v 1-2 v 1-3 1 % shock 50 g at 11m secs 3 successive shocks in 3 directions (0.2 % + 3 ) 0.3 % vibration 10 - 55 hz 0.75 mm or 10 g during 6 hours 0.2 % v 1-2 v 1-3 0.3 % rotational life 200 cycles (2 % + 3 ) contact res. variation: < 2 % rn
document number: 51027 for technica l questions, contact: sfer@vishay.com www.vishay.com revision: 26-jun-07 81 t18 3/4" rectangular multi-turn cermet trimmer vishay sfernice marking printed : - vishay trademark - model - style - ohmic value (in , k , m ) - manufacturing date - marking of terminal 3 standard resistance element data standard resistance values linear law typical tcr - 55 c + 125 c max. power at 70 c max. working voltage max. wiper cur. wvmappm/c 10 22 47 100 220 470 1k 2k2 4k7 10k 22k 47k 100k 220k 470k 1m 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.28 0.13 0.06 2.24 3.32 4.85 7.07 10.5 15.3 22.4 33.2 48.5 70.7 105 153 224 250 250 250 224 151 103 71 48 33 22 15 10 7.1 4.8 3.3 2.2 1.1 0.5 0.3 100 packaging - in tube of 25 pieces, code ?tu25? ordering information t18 series 10 k ohmic value 10 % tolerance tu25 pac k ag i n g e3 lead finish tu25: tube e3: pure sn sap pa rt numbering guidelines t1 8 103 k t 1 0 mode l ohmi c v alu e to l pa ckagi n g code special (if applicable) see the end of this data b ook for con v ersion ta b les
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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