www.vishay.com 41 T20 vishay sfernice document number: 51044 revision 15-a p r-02 for technical questions, contact sfer@vishay.com features industrial grade 0.5 watt at 85c cecc 41100 full sealed 4 standard pin styles easy to read scale 3/8" square, single turn sealed cermet trimmers T20 x side adjust T20 y top adjust * to be measured at base level. tolerances unless otherwise specified 0.5 mm. 9.53 9.53 5.33 ? 0.51 0.05 5.97 0.89 4.83 1.4 0.38 2.54* 2.54* 2.54* 1 2 3 4.83 1.4 0.38 2.54* 2.54* 2.54* 3 2 1 base level 4.78 0.38 3 2.54 2.54* 2.54* 2 1 5.08* 2.24 0.38 4.83 base level 5.97 0.89 9.53 9.53 5.64 0.05 ? 0.51 2.54* 2.54* 2 3 1 screwdriver slot: long 3.15 wide 0.76 - deep 0.76 c ircuit diagram a c b cw (2) (3) (1) dimensions in millimeters T20xx T20xh T20yp T20ym
document number: 51044 revision 15-a p r-02 www.vishay.com 42 T20 vishay sfernice for technical questions, contact sfer@vishay.com mechanical specifications mechanical travel 310 operating torque (max. ncm) 3.5 end stop torque (min. ncm) 10.5 unit weight (max. g) 0.5 environmental specifications temperature range ? 55 c + 125 c climatic category 55/100/56 sealing fully sealed container ip67 resistive element cermet electrical travel 280 resistance range 10 ? to 2m ? standard series 1 - 2 - 5.. . tolerance standard 10 % power rating linear 0.5w at 85 c logarithmic not applicable temerature coefficient see standard resistance element data limiting element voltage (linear law) 300v contact resistance variation 2% rn or 3 ? end resistance (typical) 1 ? dielectric strength (rms) 900v insulation resistance (500vdc) 10 3 m ? electrical specifications 3/8" square, single turn sealed cermet trimmers power rating chart ambient temperature in degrees celsius rated power in watt 0.50 0.25 0 0 20 40 60 85 100 125 140 tests load life climatic sequence long term damp heat rapid temperature change shock vibration rotational life 1000h at rated power 90'/30' - ambient temperature 85 c 56 days 5 cycles ? 55 c at + 125 c 50g 11ms 3 successive shocks in 3 directions 10 - 55hz 0.75mm or 10g during 6 hours 200 cycles phase a dry heat 100 c phase b damp heat phase c cold ? 55 c phase d damp heat 5 cycles 1% 2% contact resistance variation : < 1% rn 1% 2% 0.5% 1% 1% 2% dielectric strength : 1000 vrms insulation resistance : > 10 4 m ? 3% contact resistance variation : < 2% rn 1% ? vab : 2% vac 0.5 % ? vab : 1% vac conditions typical values and drifts ? rac ? rab rac (%) rab (%) performance
www.vishay.com 43 T20 vishay sfernice document number: 51044 revision 15-a p r-02 for technical questions, contact sfer@vishay.com xx yp xh ym packaging tu50 tu50: tube tolerance 10% ohmic value 500k ? style xh series T20 ordering information 3/8" square, single turn sealed cermet trimmers marking vishay logo, style, ohmic value, manufacturing date, pin ? 3 ? . the ohmic value is indicated by a 3 figure code : the first two are significant figures, the third one is the multiplier. example : 100 = 10 ? 101 = 100 ? 102 = 1000 ? 503 = 50000 ? the manufacturing date is indicated by a 3 figure code. the first digit is the year, the last two are the week number. standard resistance values max. power at 85 c max. working voltage linear law v w 10 20 50 100 200 500 1k 2k 5k 10k 20k 50k 100k 200k 500k 1m 2m 0.5 0.45 0.18 0.09 0.05 0.5 2.2 3.2 5 ,2 2 7 10 15.8 22.4 31.8 50 70.7 100 158 224 300 300 300 300 70 50 32 22 16 10 7 5 3.2 2.2 1.5 0.6 0.3 0.15 224 160 100 + 200 100 ma ppm/ c max. cur. through element t.c. ? 55 c +125 c standard resistance element data ? in magazine pack by 50 pieces (tube), code tu50 packaging
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