SCK10-054
w w w D .a S th c k e o r . e t
NTC POWER THERMISTOR, SCK SERIES
Meritek
Thermal dissipation coefficient( δ )
The thermal dissipation coefficient is the ratio, normally expressed in milliwatts per degree C (m W/o C), at a specified ambient temperature, of a change in power dissipation in a thermistor to the resultant body temperature change. (δ =VXI/∆T)
Surge energy
Surge energy is the maximum energy of pulses. The thermistor is capable of tolerating surge energy more than 1000 times with the resistance changing rates within ± 10%. This energy varies with voltage and capacitance.
Thermal time constant( t )
The thermal time constant is the time required for a thermistor to change 63.2 percent of total difference between its initial and final body temperature when subjected to a step function change in ambient temperature under zeropower condition and is normally expressed in seconds.
Storage temperature range:- 40 to +125 o C o Operating temperature range:- 30 to +125 C
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