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PTC thermistors

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OutToLunch

Electrical
Jul 7, 2005
24
Does anyone have a source for surface mount PTC thermistors? Specifically, I am looking for a thermistor that would have a room temperature value in the 10k to 30k range and a 0.4%/*C or higher slope.

The only supplier I found that had PTCs with that high of a resistance was a place called Quality Thermistor (thermistor.com). The prices they quoted were unbelieveable - not only were they not in the ballpark, they weren't in the same state.

thanks in advance.
 
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Recommended for you

besides thermistor you can use special temp.sensor IC
or even transistor or diode as sensor.

What is your application? How many/year? What kind of accuracy do you need?




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Quality Thermister is frankly... an embarrasment. Their prices are so far beyond usable I too shake my head.

Have you done a Digikey or Mouser search? Digikey shows 12 pages of PTCs in its search engine(perhaps they're all fuses though).

Keith Cress
Flamin Systems, Inc.-
 
yes, I've searched through those sources. I'm thinking I will have to find some other route. The problem is it has to be as cheap as possible - customers won't want to implement this if it is too expensive.

The PTC would be used as a direct replacement for a resistor in the analog system loop.
 
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