RdF 20101 Series

RdF 20101 Series

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
Accuracy ±1.7°C or ±0.5%
Additional 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
Operating Current 0.5mA
Operating Temperature −200°C to +900°C
Package/Size Leaded surface sensor
Response Time
  • 0.25s (grounded)
  • 0.5s (ungrounded)
Thermocouple Type E (Chromel/Constantan)

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:



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

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

bp Series Part Number Example

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

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  • Product Code: RdF 20101 Series
  • SKU: RdF 20101 Series
  • Availability: In Stock
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Tags: RdF, RDF, 20101, RdF 20100. 20101-2, 20101 2,