ATH100K1R25 series thermistors have three versions, ATH100K1R25, ATH100K1R25T70 and ATH100K1R25T70S. ATH100K1R25 has two bare leads; ATH100K1R25T70 has two leads covered with high temperature plastic tubing, non-sealed; and ATH100K1R25T70S comes with leads covered with plastic tubing, sealed.
This series thermistor is glass encapsulated, and can be applied to sensing temperature for laser diodes and optical components, etc. The thermistor has a compact size: φ1.25mm×2.0mm. The length of the two leads is 70mm. With high stability and reliability, the thermistor can sense solid block temperature in a wide temperature range: from −40°C to 270°C.
The nominal resistance @ 25°C is 100K ± 1%. In still air, the thermal time constant of this thermistor is 2.39s, and in water, it's 1s. The resistance accuracy is very high, 1%.
The physical photo of ATH100K1R25 series thermistor
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