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Thermocouple Identification

Thermocouple Identification

Thermocouple Identification

(OP)
I would like to source a thermocouple with the following rating, or as close as possible, in a strip type configuration. Could anyone identify this style of thermocouple? It is a plastic rectangle, 8.67mm X 25.45mm X 1mm thickness. It has two solder pads. This would be used in temp feedback in a ceramic glass induction cooktop. The spec below was originally a package style 35 axial component but a strip type package would be more robust for the application.

PACKAGE STYLE:?

B VALUE: B = 4300K <MOD-PM> 1%
(CALCULATED FROM RESISTANCE AT 100°C AND 200°C)

RESISTANCE: R = 14.2K Ω <MOD-PM> 2%
(MEASURE 75<MOD-DEG>C IN OIL SPOT)

OPERATING TEMP. RANGE: -20°C ~ 200°C

Thanks!

RE: Thermocouple Identification

That sounds like a spec. for a thermistor, not a thermocouple.

RE: Thermocouple Identification

(OP)
yes, a thermistor, sorry!

RE: Thermocouple Identification

It sounds like a fairly custom part, due to the relatively high operating temperature (200 deg. C?) and rather large size. Not sure that anybody will quote a plastic package at that high of an operating temperature. Google should be able to give you a whole slew of thermistor manufacturers, and hopefully one of them will be interested in quoting the part for you. Try US Sensors (ussensor.com), for starters.

RE: Thermocouple Identification

(OP)
The spec was from an axial thermistor at that operating temp and resistance value. The plastic (?) part was one that I pulled out of a similar unit. It is actually a lot more dense than plastic, maybe a ceramic? It has the appearance of plastic. So in a nutshell, I want to capture as much of the properties of the axial component spec as I can with a pad style thermistor.

RE: Thermocouple Identification

I'd agree with IRStuff that you might have more luck finding an off-the-shelf thermistor that will fit your operating environment (temperature, size, etc.) and then jigger the sensing circuit (maybe two resistor values?) to match its characteristics.

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