potentiometer - Electronic Circuits Projects Diagrams Free

mozikluv · 10th March 2004, 07:03 AM

hi everybody,

is a positive temperature coefficient pot a common device? can anyone refer me to a site with sufficient info on this device?

thanx in advance

Klaus · 11th March 2004, 03:34 AM

You can safely assume that a wire wound pot has a PTC.
Similarily, a carbon track pot would have a NTC.

I guess the modern pots with cermet or conductive plastic tracks would have close to zero TC.

For info on specific pots you could try a google search on manufacturers spec sheets.

mozikluv · 11th March 2004, 07:55 AM

hi klaus,

thanx for the info, most of the time am using carbon pots (burr-brown)

and maybe i could count how may times i have used wire wounds. time to do research on ptc pots.

ajohne20022001 · 5th August 2004, 03:15 PM

Quote:

Originally Posted by Klaus

You can safely assume that a wire wound pot has a PTC.
Similarily, a carbon track pot would have a NTC.

I guess the modern pots with cermet or conductive plastic tracks would have close to zero TC.

For info on specific pots you could try a google search on manufacturers spec sheets.

good of you

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10th March 2004, 07:03 AM	#1
mozikluv	potentiometer hi everybody, is a positive temperature coefficient pot a common device? can anyone refer me to a site with sufficient info on this device? thanx in advance __________________ \"NONE BUT THE BRAVE DESERVES THE FAIR\" ~Shakespeare~

11th March 2004, 03:34 AM	#2
Klaus	You can safely assume that a wire wound pot has a PTC. Similarily, a carbon track pot would have a NTC. I guess the modern pots with cermet or conductive plastic tracks would have close to zero TC. For info on specific pots you could try a google search on manufacturers spec sheets.

11th March 2004, 07:55 AM	#3
mozikluv	PTC pots hi klaus, thanx for the info, most of the time am using carbon pots (burr-brown) and maybe i could count how may times i have used wire wounds. time to do research on ptc pots. __________________ \"NONE BUT THE BRAVE DESERVES THE FAIR\" ~Shakespeare~