Thermistors, Temperature Protection VALUE 4000 UNIT QUICK RE
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2381 911./PTCSL.T.BE
Thermistors, Temperature Protection
VALUE 4000 UNIT
QUICK REFERENCE DATA
PARAMETER Maximum resistance Minimum resistance Maximum (DC) voltage Temperature range Weight: 91102 91114 91152 91164 Climatic category 0.08 0.11 25/125/56
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
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) RESISTANCE from RESISTANCE RESISTANCE 0.570 1.33 1.33 1.33 1.33 1.33 1.33 1.33 1.33 CATALOG NUMBER 2381 LEADED DEVICE NORMAL LEADS 91102 91103 91104 91105 91106 91107 91109 91112 91114 COLOR CODE LONG LEADS 91152 91153 91154 91155 91156 91157 91159 91162 91164 black brown orange yellow green blue violet grey
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Document Number: 29012 Revision: 31-Aug-06
2381 911./PTCSL.T.BE
Thermistors, Temperature Protection
ELECTRICAL CHARACTERISTICS
PARAMETER Maximum resistance Maximum resistance Minimum resistance Minimum resistance Maximum voltage VALUES Nominal Working Temperatures Ordering Information table 4000 Nominal Working Temperatures Ordering Information table
CATALOG NUMBERS PACKAGING
2381 91102 2381 91103 2381 91104 2381 91105 2381 91106 2381 91107 2381 91109 2381 91112 2381 91114 PTCSL20T071DBE PTCSL20T081DBE PTCSL20T091DBE PTCSL20T101DBE PTCSL20T111DBE PTCSL20T121DBE PTCSL20T131DBE PTCSL20T141DBE PTCSL20T151DBE 2381 91152 2381 91153 2381 91154 2381 91155 2381 91156 2381 91157 2381 91159 2381 91162 2381 91164 PTCSL40T071DBE PTCSL40T081DBE PTCSL40T091DBE PTCSL40T101DBE PTCSL40T111DBE PTCSL40T121DBE PTCSL40T131DBE PTCSL40T141DBE PTCSL40T151DBE
COMPONENT OUTLINES
Dimensions millimeters
20.0
2.54
Component outline 91102 91114
2.54 40.0
Component outline 91152 91164
Document Number: 29012 Revision: 31-Aug-06
technical questions, contact: nlr.europe@vishay.com
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2381 911./PTCSL.T.BE
Thermistors, Temperature Protection
TYPICAL RESISTANCE/TEMPERATURE CHARACTERISTIC 2381 91102/91103 91104
(DC) max.
TYPICAL RESISTANCE/TEMPERATURE CHARACTERISTIC 2381 91105/91106 91107
(DC) max.
Resistance
Resistance
Temperature (°C)
Temperature (°C)
TYPICAL RESISTANCE/TEMPERATURE CHARACTERISTIC 2381 91109
(DC) max.
TYPICAL RESISTANCE/TEMPERATURE CHARACTERISTIC 2381 91112 911146
(DC) max.
Resistance
Resistance
Temperature (°C)
Temperature (°C)
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technical questions, contact: nlr.europe@vishay.com
Document Number: 29012 Revision: 31-Aug-06
2381 911./PTCSL.T.BE
Thermistors, Temperature Protection
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.
APPLICATION EXAMPLES
thermistor
trigger temperature
(°C)
Fig. Typical comparator circuit
Fig. Typical switch characteristic
MBD129
soon more windings becomes hot, motor switched off. Fig. Temperature protection electric motors
MBD126
thermistors located above fluid level will heated temperature greater than When immersed they cooled such that their resistance value reduced. Fig. Liquid-level indication
Document Number: 29012 Revision: 31-Aug-06
technical questions, contact: nlr.europe@vishay.com
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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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