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Mineral Insulated Thermocouples

What is a Mineral Insulated Thermocouple?

A mineral insulated (MI) thermocouple consists of conductors embedded in highly compacted magnesium oxide inside a metal sheath. This design offers excellent durability, flexibility, and temperature resistance.

TC has been a trusted manufacturer and supplier of thermocouples for more than 50 years, serving manufacturers, OEMs, and research laboratories across the United States.

Our experienced engineers are ready to support you from initial consultation through delivery, helping you select the right temperature sensor to match your specific application.

with Basic End Seal
0.010" to 0.313" dia.

Internal seal with bare conductors with Pot Seal
0.010" to 0.313" dia.

a large selection of plain and threaded pot seals supplied with tails or extension Wire (PVC, FEP, Fiberglass etc.) with Miniature Plug
0.010" to 0.125" dia.

fitted with a miniature thermocouple plug rated to either 428ºF, 572ºF, 797ºF or 1112ºF with Miniature Jack
0.010" to 0.125" dia.

fitted with a miniature thermocouple jack rated to either 428ºF, 572ºF, 797ºF or 1112ºF with Standard Plug
0.062" to 0.250" dia.

fitted with a standard thermocouple plug rated to either 428ºF, 572ºF, 797ºF or 1112ºF with Standard Jack
0.062" to 0.250" dia.

fitted with a standard thermocouple jack rated to either 428ºF, 572ºF, 797ºF or 1112ºF with Lemo Connector
0.125" to 0.250" dia.

fitted with a size 1 Lemo plug
or jack with Terminal Entry Gland
0.040" to 0.313" dia.

terminated with a 16mm ISO x 1.5mm compression gland seal supplied with tails or extension Wire (PVC, FEP Fiberglass etc.) with Micro die cast alloy head 0.125" to 0.250" dia.

Micro die cast alloy screw down terminal head with ceramic terminal block. Suitable for simplex and duplex assemblies with Miniature IP67 die cast head 0.125" to 0.313" dia.

Weatherproof die cast alloy screw top terminal head with ceramic terminal block. Suitable for simplex and duplex assemblies with Standard IP67 die cast head 0.188" to 0.500" dia.

Weatherproof die cast alloy screw top terminal head with ceramic terminal block. Suitable for simplex, duplex and triplex assemblies with IP67 heavy duty cast iron head 0.188" to 0.500"dia.

Weatherproof cast iron screw top terminal head with ceramic terminal block. Suitable for simplex, duplex and triplex assemblies with IP67 Bakelite head
0.188" to 0.500"dia.

Weatherproof Bakelite screw top terminal head with Bakelite terminal block. Suitable for simplex, duplex and triplex assemblies with alloy straight through head 0.188" to 0.500"dia.

Die cast alloy straight through terminal head with Bakelite terminal block. Suitable for simplex and duplex assemblies with 316 Stainless Steel head
0.188" to 0.500"dia.

Weatherproof 316 stainless steel screw top terminal head with ceramic terminal block. Suitable for simplex and duplex assemblies with BUZ-H style top hat head
0.188" to 0.500"dia.

Weatherproof die cast alloy screw down 'flip' terminal head. Mainly used for duplex assemblies where two transmitters can be fitted with spring loaded terminal block 0.125", 0.188", 0.250" and 0.313" dia.

Spring loaded insert assemblies. The end seal is incorporated into a terminal block for mounting into any standard terminal head