RdF 20101 Series

  • RdF

Product Features

  • Butt bonded foil thermocouple
  • Micro-foil® thickness of 0.0128mm (0.0005″)
  • Insulation resistance of 50MΩ at 50VDC in Ungrounded junction TCs
  • 2 wire configuration
  • Removable Kapton® frame for bare foil applications
  • Standard lead length of 6″, additional lengths available on request


  • Automotive
  • Military
  • Oil & Gas
  • Rhopoint Energy


The 20101 butt bonded foil type E (Chromel/Constantan) thermocouple temperature sensor series from RdF offer high performance and are ideal for demanding applications. These surface thermocouples provide an accuracy of ±1.7°C or ±0.5% with a fast response time of 0.5s (ungrounded) and 0.25s (grounded) for the sensor to reach 63.2% of a change in mounting surface temperature. This type E thermocouple offers an operating temperature range of -200°C up to +900°C. The 20101 series from RDF utilises butt bonding which produces thermocouples with no increase in thickness or mass at the junction. This offers a micro-foil® thickness of 0.0128mm (0.0005″). The sensors have a removable Kapton® frame for bare foil application.

  • Butt bonded foil thermocouple
  • Type E (Chromel/Constantan)
  • Accuracy of ±1.7°C or ±0.5%
  • Operating temperature range -200°C up to +900°C
  • Operating current of 0.5mA
  • Micro-foil® thickness of 0.0128mm (0.0005″)
  • 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 are dot colour coded ribbon leads
  • Standard lead length 6″, additional lengths available upon request
  • Removable Kapton® case material for bare foil applications


Weight 0.00000 kg
Dimensions 0.72 × 0.40 × 0.00 mm


Additional Features

Response Time


Operating Current

Temperature Range (°C)

Package / Size

RoHS Compliant Product – RdF

This product is available fully compliant to the RoHS EU directive 2011/65/EU.

RdF 20100, 20101 and 20102 Series Ordering Info

Below is an example of the part number break down for the RdF 20100, 20101 and 20102 series:

bp Series Part Number Example

RdF 20100, 20101 and 20102 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 20100, 20101 and 20102 series butt bonded micro-foil® thermocouple datasheet
RdF surface temperature sensors
RdF understanding contact temperature sensors

RdF 20101 Series

Calculators and Converters

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