HT Thermistor (high accuracy, surface mount type)

The surface mount type HT series thermistor features high accuracy and excellent reliability, having reflow soldering capability. SEMITEC’S HT thermistors are fully compliant with RoHS DIRECTIVE2011/65/EU.



Office automation, communication equipment, IT equipment, mobile devices, battery packs, LCDs, hybrid ICs, AV equipment, quartz crystal oscillators, electric vehicles

Part number



Part No. R251 R25Tolerance B-value2 Dissipation factor
Thermal time constant s3 Rated power
mW at 25℃
Operating Temperature range
302HT 3.00kΩ ±1%
3860K±1% approx. 1.0 approx. 8 5.0 −50〜+125
502HT 5.00kΩ 3860K±1%
103HT・HTF 10.0kΩ 3435K±1% −50〜+100
203HT 20.0kΩ 3760K±1% −50〜+125
303HT 30.0kΩ 3760K±1%
503HT・HTF 50.0kΩ 4055K±1%
104HT・HTF 100kΩ 4390K±1%

1 Rated zero-power resistanceat 25℃
2 B-value determined by rated zero-power resistance at 25℃ and 85℃
3 Time required to reach 63.2% of temperature difference. Measured in still air.