document number: 51015 for technica l questions, contact: sfer@vishay.com www.vishay.com revision: 01-aug-06 see also: application notes 39 t7 vishay sfernice miniature cermet trimmers features ? industrial grade ? 0.5 watt at 85 c ? test according to cecc 41100 ? low temperature coefficient (100 ppm/k typical) ? wide resistance range (10 to 2.2 m ) ? easy to read scale the t7 trimmer is only 7 mm (0.275") in diameter and fits almost anywhere. a dust sealed plastic case protecting a quality cermet track guarantees high performance and proven reliability. adjustments are made easier by the clear scale readings. t7 is ideally suited to all industrial applications. dimensions in millimeters t7 ya tolerances unless otherwise specified 0.5 mm t7 yb 2.54 0.4 0.5 2.54 2.54 a b c 4 6 4.5 min 7 0.6 2.54 2.54 0.3 0.5 a c b 4 6 4.5 min 7 circuit diagram a c b cw (2) (3) (1) rohs compliant
www.vishay.com for technical ques tions, contact: sf er@vishay.com document number: 51015 40 see also: application notes revision: 01-aug-06 t7 vishay sfernice miniature cermet trimmers electrical specifications resistive element cermet electrical travel 270 15 resistance range 10 to 2.2 m standard series e3 1 - 2.2 - 4.7 and on request 1 - 2 - 5 tolerance standard standard 20 % on request 10 % power rating linear 0.5 w at 85 c logarithmic not applicable temperature coefficient see standard resistance element data limiting element voltage (linear law) 250 v contact resistance variation 3 % or 3 end resistance (typical) 1 dielectric strength (rms) 1000 v insulation resistance 10 6 m mechanical specifications mechanical travel 300 5 operating torque (max. ncm) 2 end stop torque (max. ncm) 4 unit weight (max. g) 0.5 environmental specifications temperature range - 55 c to + 125 c climatic category 55/100/56 sealing ip64 power rating chart 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 temperature 70 c 3 % 4 % contact resistance variation: < 3 % rn climatic sequence phase a dry heat 100 c phase b damp heat phase c cold - 55 c phase d damp heat 5 cycles 2 % 3 % long term damp heat 56 days 2 % 3 % dielectric strength: 1000 v rms insulation resistance: > 10 4 m rapid temperature change 5 cycles - 55 c at + 125 c 1 % v 1-2 v 1-3 2 % shock 50 g 11 ms 3 successive shocks in 3 directions 0.5 % 1 % vibration 10 - 55 hz 0.75 mm or 10 g during 6 hours 0.5 % v 1-2 v 1-3 1 % rotational life 200 cycles 3 % contact resistance variation: < 3 % rn 0 20 40 100 125 140 85 70 0.25 0 0.50 ambient temperature in degrees celsius power in watt
document number: 51015 for technica l questions, contact: sfer@vishay.com www.vishay.com revision: 01-aug-06 see also: application notes 41 t7 miniature cermet trimmers vishay sfernice marking printed: - vishay trademark - series - ya or yb style - ohmic value (in , k , m ) - manufacturing date - marking of terminal: 3. sealing t7 is sealed against dust (ip64). for board cleaning, vishay recommands testing before usage. water immersion is fo rbidden. ultrasonic may cause component damage or failure. standard resistance element data standard resistance values linear law tcr - 55 ? + 125 ? max. power at 8 5 ? max. working voltage max. wiper cur. w v ma ppm/? 10 22 47 0.5 2.2 3.3 4.8 224 150 103 0 + 200 100 220 470 1k 2.2k 4.7k 10k 22k 47k 100k 220k 470k 1m 2.2m 0.5 0.28 0.13 0.06 0.028 7.0 10.5 15.3 22.4 33.2 48.5 70.7 105 153 224 250 250 250 250 70 47 32 22 15 10 7 4.8 3.2 2.2 1.1 1.53 0.25 0.11 100 packaging - in bulk (box of 200 pieces), code bo200 - on request in tube, code tu50 ordering information t7 series ya style 470 k ohmic value ?20 % tolerance bo200 pac k ag i n g e2 lead finish ya - yb bo200 on request: tu50 e2: snag alloy sap part numbering guidelines t7ya474mb40 model style ohmic value tol packaging code special (if applicable) see the end of this data book for conversion tables
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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