NTCorPTC?

Thermistorsarethermallysensitiveresistorswitheitheranegativeresistance/temperaturecoefficient(NTC)or

positiveresistance/temperature(PTC)coefficient.Thermometricsoffersawiderangeofbothtypesofthermistors

fromcomponentlevelthroughcompleteassemblies.Bothtypesofthermistorsaresolidstateceramic

components, known for their exceptional quality and long life.

Thermometrics is a world leader in beta curve selections and high voltage circuit applications.

NTC Thermistors

NTCthermistorsaremanufacturedfromtheoxidesof

transition metals and can operate over the range of -196°C

to1000°C.ChooseanNTCthermistorwhenacontinuous

change of resistance with temperature is required.

Temperature

Temperature

Volts

Current

What are the key characteristics of NTCs?

• Definedsensitivitytotemperature

• Sensitivitytoelectricalpowerinput

• Sensitivitytochangesinthermalconductivity

What are the main applications for NTC

thermistors?

• Temperaturemeasurementandcontrol

• Temperaturecompensation

• Surgesuppression

• Powermeasurement

• Fluidlevel-flowdetection

• Customizedsolutions

PTC Thermistors

PTCthermistorsaretemperature-dependentresistors

manufactured from doped barium titanate and are available

with transition temperatures from 60°C to 200°C. Choose

aPTCthermistorforselfreset-capablefuseandheater

applications.

What are the key characteristics of PTCs?

• Largechangeinresistanceatapreset

temperature

• Abilitytoself-regulatetemperature

• Current-limitingcapability

• Sensitivitytochangesinthermalconductivityw

• Standardandcustomdesigngeometries

What are the main applications for PTC

thermistors?

• Over-temperatureprotection

• Over-currentprotection

• Surgegeneration

• Currentstabilization

• Fluidlevel-flowdetection

• Selfregulatingheaters

Current

Volts

6