PTC AS OPPOSED TO NTC THERMISTORS.
Posted: Mon Jul 07, 2008 10:01 pm
Can anyone out there explain the difference and characteristics twixt a PTC thermistor and a NTC thermistor?
Regards to all,
KEN.
Regards to all,
KEN.
Hi
NTC (negative temperature coefficient) thermistors are more common, the resistance drops as the temperature increases. Positive temperature coefficient termistors have the opposite relationship - the resistance increases as the temperature increases.
If you look in a catalogue you will see that the resistance is normally quoted for a specific temperature (generally 25 deg. C) - different types are available with different resistance ranges.