Features Type K thermocouple electrodes and electrical connectors built to the MIL-C-26482 military standard for stable signal transmission. Available with 3, 5, 9, 16, 20, or 27 Type K thermocouple pairs. The feedthrough is sealed with glass-ceramic, and the electrodes are made of Type K thermocouple material with a diameter of 1.0 mm. Rated for mV-level voltage and mA-level current. Operating temperature ranges from -200°C to 200°C, with an ultimate vacuum of <1×10⁻¹⁰ mbar. The 20-pair version is recommended for CF50 flanges, available in single-ended or double-ended configurations. Custom flange and feedthrough combinations are available upon request. Optional Type K thermocouple connectors, pins, and cables can be provided for both ends of the feedthrough.

Pin Standard

MIL-C-26482

Pin Diameter

1.0 mm

Pin Material

Type K Thermocouple

Sealing Material

Glass-Ceramic

Voltage

mV Level

Current

mA Level

Temperature Range

-200°C to 200°C

Ultimate Vacuum

<1×10⁻¹⁰ mbar

Leak Rate

<1×10⁻¹² Pa·m³/s He

Thermocouple-pair Count

Flange

End Type

Model

20

CF50

Double-Ended

MT120-41CTS-DS-C50-GTCK20

20

KF50

Double-Ended

MT120-41CTS-DS-K50-GTCK20

20

CF50

Single-Ended

MT120-41CTS-SP-C50-GTCK20

20

KF50

Single-Ended

MT120-41CTS-SP-K50-GTCK20

Note: For other flange and feedthrough combinations, please contact us.

Item

Description

Model

Vacuum-Side Connector

Double-ended
Connector + Pins + Housing

MT121-DSCON-41CTS-TCK20-VAC

Vacuum-Side Connector

Single-ended
Connector + Pins
(or Pins Only)

MT121-SPCON-41CTS-TCK20-VAC

Pins (Female)

Positive (+): Chromel

MT105-TCKPF-CR

Pins (Female)

Negative (−): Alumel

MT105-TCKPF-AL

Air-side Connector

Positive and negative pins included

MT121-41CTS-TCK20-AIR