| ??? 08/22/07 06:05 Read: times |
#143496 - >Dissipation constant< gives the answer Responding to: ???'s previous message |
What i understand
"dissipation constant" of 1mW/°C For 100 µW/0.1°C So maximum this much power (100 µW) dissipation is valid for thermistor to not degrade the performance. The thermistor resistor at 37 °C= 6.2 Kohm If I take 6.2 k( Precise resistor as suggest by Kai) then the current is (5/(6.2+6.2)Kohm)=4.0322E-4 Amp and so power dissipation in thermistor is (((4.0322E-4)^2)*6.2Kohm)=1.008E-3 watt Approximately 1 mw power dissipated in the thermistor. Is it tolerable. |
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