RdF 26721 Series

  • RdF

Product Features

  • Stikon® type E thermocouple
  • Insulation resistance of 50MΩ minimum at 50VDC in Ungrounded junction TCs
  • 2 wire configuration
  • Kapton® case material
  • Embeded in a paper thin laminate


The 26721 Stikon® type E (Chromel/Constantan) thermocouple temperature sensor series from RdF are embedded in a paper thin laminate intended for surface temperature measurement applications. These thermocouples have a response time of 0.25s (grounded) and 0.5s (ungrounded) for the sensor to reach 63.2% of a change in mounting surface temperature. This type E thermocouple offers an operating temperature range of -184°C up to +260°C (continuous), +371°C (short term) and provides an accuracy of ±1.7°C or ±0.5%. The 26721 series from RDF are without pre-applied cement so you can select the adhesive or clamp for extended temperature capability. These thermocouples use a Kapton® case material.

  • Stikon® Thermocouple
  • Type E (Chromel/Constantan)
  • Accuracy of ±1.7°C or ±0.5%
  • Temperature range of -184°C up to +260°C (continuous), +371°C (short term)
  • Operating current of 0.5mA
  • Response time of 0.5s (ungrounded) and 0.25s (grounded) for the sensor to reach 63.2% of a change in mounting surface temperature
  • Insulation resistance of 50MΩ minimum at 50 VDC in ungrounded junction TCs
  • Lead wires 30AWG solid T/C wire with fiberglass insulation and overwrap, parallel lay
  • Kapton® case material
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Weight 0.00000 kg
Dimensions 0.02 x 0.37 x 0.75mm


Operating Current

Package / Size

Response Time


Series / Model

Temperature Range (°C)

RdF 26721, 26722, 26723 and 26724 and 20102 Series Ordering Info

Below is an example of the part number break down for the RdF 26721, 26722, 26723, and 26724 series:

bp Series Part Number Example

RdF 26721, 26722, 26723 and 26724 Series Technical Library

We are pleased to provide you with a range of additional content including product datasheets and application notes for your reference. Please see below for the latest content available:



RdF 26721, 26722, 26723 and 26724 series stikon® thermocouple datasheet
RdF surface temperature sensors
RdF understanding contact temperature sensors
  • Energy
  • Oil & Gas
  • RdF

RdF 26721 Series

Please be advised that due to the ongoing supply issues with raw materials affecting the global electronics industry, as well as an increase in orders received by our manufacturing partners, a large number of products are facing increased lead times in recent months. For the latest lead time and stock availability, please contact one of our engineers who will be happy to discuss lead times further and the potential for alternative parts.