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Thermocouple Feedthrough Probes

The thermocouple feedthrough probes offer an alternative to normal in-vacuum connections for thermocouple measurement. In lieu of the normal 'hot junction' that is attached to regular paired thermocouple feedthroughs, the probes are encased in a stainless steel or inconel sheath that is mated directly to the flange. The probe is bendable to any orientation in vacuum and allows easier manipulation than bare wires to place the measurement tip in close proximity to the area that the temperature is to be measured. Rated for high and ultrahigh vacuum applications (depending on mounting termination).

Thermocouple Feedthrough Probes Feature:

  • Type J, K, E, T, & N Thermocouple Styles
  • Include miniature air-side connectors
  • Temperature measurement junction encased in bendable metal sheath, stainless steel or inconel available
Part No Specification Code Indicates
T F P Thermocouple Feedthrough Probe - Air-Side Connector
x x x N Number of T/C Probes Number From 1-2 Probes
(Custom Configurations Available)
x x x x N T/C Type E
Chromel: Constantan™
Fe: Constantan
Chromel: Alumel®
x x x x x N T/C Connector Plug Y Miniature Style Plugs
x x x x x x NN Sheath Material SS
Stainless Steel
x x x x x x x x N N Length (In) 12 Vacuum Side Length
(Custom Lengths Available)
x x x x x x x x x x N N Termination - Same as Power Feedthroughs

**Note, Type N probes are available only with Inconel Sheath

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  • special case note
    The electrical and thermal ratings specified are of safe operating limits determined by various factors including material properties, mechanical design, and the intended operating environment. All electrical ratings are based on operation with one side in dry atmosphere and the other side in vacuum of less than 1 x 10-4 Torr. All VacuCAD files as well as any dimensions shown or listed in our ordering tables do not include manufacturing tolerances and are provided for reference only.

Ordering Table

(Click column headers to sort data)

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Feedthrough Selection Guide
Feedthrough Selection Guide
Finding the right feedthrough has never been easier with our step by step Feedthrough Selection Guide. You can narrow down our feedthrough offering by simply choosing from a variety of different options suitable to your requirements. If you can't find the feedthrough you need or want a custom configuration, please contact us by clicking here or call +1 800 245 1656 with your inquiry.
Contact Us - Thermocouple Feedthrough Probes