Thermistors, Temperature Protection Well-defined protection tempe
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2381 912./PTCSG.T.BE
Thermistors, Temperature Protection
Well-defined protection temperature levels Fast reaction time still air) Accurate resistance ease circuit design Excellent long term behavior after 1000 hrs. Wide range protection temperatures need reset supply after overtemperature switch Small size rugged Coated leaded naked devices available Component accordance RoHS 2002/95/EC WEEE 2002/96/EC
QUICK REFERENCE DATA
PARAMETER Maximum resistance Minimum resistance Maximum (DC) voltage Temperature range Weight: 91202 91214 Climatic category 25/125/56 VALUE 4000 UNIT
APPLICATIONS
Industrial electronics Power supplies Electronic data processing Motor protection
DESCRIPTION
These directly heated thermistors have positive temperature coefficient primarily intended sensing.
NOMINAL WORKING TEMPERATURES ORDERING INFORMATION
NOMINAL WORKING TEMPERATURE (°C) Rmax Rmin 1330 1330 1330 1330 1330 1330 1330 1330 Rmin 4000 4000 4000 4000 4000 4000 4000 4000 Rmin 4000 CATALOG NUMBER 2381 DEVICE 91202 91203 91204 91205 91206 91207 91209 91212 91214
ELECTRICAL CHARACTERISTICS
PARAMETER Maximum resistance Maximum resistance Minimum resistance Minimum resistance Maximum voltage VALUES Nominal Working Temperatures Ordering Information table Nominal Working Temperatures Ordering Information table Nominal Working Temperatures Ordering Information table
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Document Number: 29018 Revision: 31-Aug-06
2381 912./PTCSG.T.BE
Thermistors, Temperature Protection
CATALOG NUMBERS PACKAGING
2381 91202 2381 91203 2381 91204 2381 91205 2381 91206 2381 91207 2381 91209 2381 91212 2381 91214 PTCSGM3T071DBE PTCSGM3T081DBE PTCSGM3T091DBE PTCSGM3T101DBE PTCSGM3T111DBE PTCSGM3T121DBE PTCSGM3T131DBE PTCSGM3T141DBE PTCSGM3T151DBE
COMPONENT OUTLINES Dimensions millimeters
0.145 [3.68] hole
0.281 [7.14]
0.157 0.039
1.496 0.157
0.64 [16.26] max. 0.04 [1.016]
Component outline 2381 91202 91214
TYPICAL RESISTANCE/TEMPERATURE CHARACTERISTIC 2381 91202
TYPICAL RESISTANCE/TEMPERATURE CHARACTERISTIC 2381 91203
1,0E+06
1,0E+06
1,0E+05
1,0E+05
Resistance
Resistance
1,0E+04
1,0E+04
1,0E+03
1,0E+03
1,0E+02
1,0E+02
1,0E+01
1,0E+01
Temperature (°C)
Temperature (°C)
Document Number: 29018 Revision: 31-Aug-06
technical questions, contact: nlr.europe@vishay.com
www.vishay.com
2381 912./PTCSG.T.BE
Thermistors, Temperature Protection
TYPICAL RESISTANCE/TEMPERATURE CHARACTERISTIC 2381 91205
1,0E+06
TYPICAL RESISTANCE/TEMPERATURE CHARACTERISTIC 2381 91204
1,0E+06
1,0E+05
1,0E+05
Resistance
1,0E+03
Resistance
1,0E+04
1,0E+04
1,0E+03
1,0E+02
1,0E+02
1,0E+01
1,0E+01
Temperature (°C)
Temperature (°C)
TYPICAL RESISTANCE/TEMPERATURE CHARACTERISTIC 2381 91206
1,0E+06
TYPICAL RESISTANCE/TEMPERATURE CHARACTERISTIC 2381 91207
1,0E+06
1,0E+05
1,0E+05
Resistance
1,0E+04
Resistance
1,0E+04
1,0E+03
1,0E+03
1,0E+02
1,0E+02
1,0E+01
1,0E+01
Temperature (°C)
Temperature (°C)
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technical questions, contact: nlr.europe@vishay.com
Document Number: 29018 Revision: 31-Aug-06
2381 912./PTCSG.T.BE
Thermistors, Temperature Protection
TYPICAL RESISTANCE/TEMPERATURE CHARACTERISTIC 2381 91209
1,0E+06
TYPICAL RESISTANCE/TEMPERATURE CHARACTERISTIC 2381 91212
1.0E+06
1,0E+05
1.0E+05
Resistance
Resistance
1,0E+04
1.0E+04
1,0E+03
1.0E+03
1,0E+02
1.0E+02
1,0E+01
1.0E+01
Temperature (°C)
Temperature (°C)
TYPICAL RESISTANCE/TEMPERATURE CHARACTERISTIC 2381 91214
1,0E+06
1,0E+05
Resistance
1,0E+04
1,0E+03
1,0E+02
1,0E+01
Temperature (°C)
Document Number: 29018 Revision: 31-Aug-06
technical questions, contact: nlr.europe@vishay.com
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2381 912./PTCSG.T.BE
APPLICATION SPECIFIC DATA
Negative Temperature Coefficient (NTC) thermistors well known temperature sensing. What well known, however, that Positive Temperature Coefficient (PTC) thermistors used thermal protection. Although their operating principles similar, applications very different; whereas thermistors sense measure temperature over defined range, thermistors switch particular temperature. Just like thermostats they protect such equipment components motors, transformers, power transistors thyristors against overtemperature. thermistor less expensive than thermostat, switch temperature more accurately specified. also smaller easier design-in electronic circuitry. does work? thermistor mounted thermal contact with equipment protected, connected into bridge comparator circuit, such shown Fig. normal temperature, thermistor resistance (Rp) lower than (see Fig. comparator's output voltage will low. equipment overtemperature occurs, thermistor will quickly heat trigger nominal reference temperature whereupon resistance will increase value much higher than causing switch high level sufficient activate alarm, relay power shutdown circuit.
Thermistors, Temperature Protection
APPLICATION EXAMPLES
thermistor
trigger temperature (°C)
Fig. Typical comparator circuit
Fig. Typical switch characteristic
soon more windings becomes hot, motor switched off.
thermistors located above fluid level will heated temperature greater than When immersed they cooled such that their resistance value reduced. Fig. Liquid-level indication
Fig. Temperature protection electric motors
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Document Number: 29018 Revision: 31-Aug-06
Legal Disclaimer Notice
Vishay
Notice
Specifications products displayed herein subject change without notice. Vishay Intertechnology, Inc., anyone behalf, assumes responsibility liability errors inaccuracies. Information contained herein intended provide product description only. license, express implied, estoppel otherwise, intellectual property rights granted this document. Except provided Vishay's terms conditions sale such products, Vishay assumes liability whatsoever, disclaims express implied warranty, relating sale and/or Vishay products including liability warranties relating fitness particular purpose, merchantability, infringement patent, copyright, other intellectual property right. products shown herein designed medical, life-saving, life-sustaining applications. Customers using selling these products such applications their risk agree fully indemnify Vishay damages resulting from such improper sale.
Document Number: 91000 Revision: 08-Apr-05
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