Can anyone out there explain the difference and characteristics twixt a PTC thermistor and a NTC thermistor?
Regards to all,
KEN.
PTC AS OPPOSED TO NTC THERMISTORS.
-
Simon (Webmaster)
- Site Admin
- Posts: 173
- Joined: Tue Jan 29, 2008 7:05 pm
- Location: Nottingham, UK
- Contact:
Re: PTC AS OPPOSED TO NTC THERMISTORS.
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.
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.