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Douglas Electrical Components is a leading manufacturer of custom hermetic thermocouple feedthroughs for vacuum and pressure applications. Our thermocouple feedthroughs are designed to withstand extreme temperatures, including cryogenic environments, and harsh environments. We use only the highest quality connectors, wires, and materials to ensure that our products are durable and reliable.

At Douglas Electrical Components, we understand that every customer has unique needs. That’s why we offer customized solutions to meet your specific requirements. We can configure our feedthroughs with both connector and thermocouple wire interfaces, and we can integrate thermocouple connectors to the wire assemblies to simplify installation and reduce assembly time.

The mechanical interface of your hermetic thermocouple feedthrough is customizable, from standard vacuum face seals and vacuum flanges (CF, KF, etc.), to NPT fittings, radial O-ring seals, or custom machined interfaces. Additionally, our team can design a Portplate assembly, incorporating multiple thermocouple feedthroughs as well as other hermetic connectors and wire feedthroughs into a single assembly.

Our team works closely with our customers to ensure that we deliver products that meet their exact specifications. We take pride in our ability to provide fast turnaround times and exceptional customer service. Our customers trust us to deliver high-quality products on time and within budget. Go beyond the seal of a compression fitting and hermetically seal the individual conductors for increased reliability and long-term use.

Whether you need a single feedthrough or a large volume of custom hermetic thermocouple feedthroughs, we are here to help. Contact us today to learn more about our products and services, and to discuss your specific needs with one of our experts.

Features

THERMOCOUPLE FEEDTHROUGH TYPES
  • Type J
  • Type K
  • Type E
  • Type T
MARKET CAPABILITIES
  • ISO 9001:2015
  • ISO 14001:2015
  • ITAR DDTC Registration

Products

FAQ

What is a hermetic thermocouple feedthrough?

A hermetic thermocouple feedthrough is a type of electrical feedthrough that is designed to provide a hermetic seal for a thermocouple wire as it passes through a sealed environment. Douglas Electrical Components manufactures hermetic thermocouple feedthroughs with various mechanical interfaces to pass conductors through or connect two connectors across the bulkhead assembly.

Why should I choose an epoxy-based thermocouple feedthrough?

Epoxy-based feedthrough provide a tremendous amount of design flexibility to integrate either wires or connectors. Douglas Electrical uses a low-outgassing hermetic epoxy to seal across the bulkhead or fitting. Epoxy feedthroughs operate over a variety of temperatures and pressures while providing an extremely high level of customization for low, medium, and high volume applications.

I have a connector specified in my system. Can Douglas integrate it into my assembly?

Yes. Douglas Electrical Components uses an epoxy-based sealing technology that hermetically seals to virtually any connector on the market. For customers with existing harnesses, Douglas can integrate a mating hermetic connector interface to meet the application requirements.

Does Douglas offer different vacuum flanges?

Yes, Douglas can machine a vacuum flange from a variety of materials, depending on the application. We have in-house CNC machining capability to keep costs and lead time competitive.

What is the lead time of a thermocouple feedthrough?

Lead time is dependent on the mechanical and electrical connection choices, but for small quantities, Douglas offers a standard lead time of 4-6 weeks AAO. Expedites are commonly available to deliver to your expectations.

How can I integrate other electrical connections?

Our low outgassing epoxy technology allows a great amount of flexibility to integrate various electrical interfaces into a a single assembly. Additionally, Douglas can manufacture a larger Portplate assembly to accommodate multiple electrical connections into a single mechanical interface.

Image Library

Images
24258TA Hermetic thermocouple feedthrough with vacuum face seal and jamnut

24258TA Hermetic thermocouple feedthrough with vacuum face seal and jamnut

24258TA Hermetic thermocouple feedthrough with vacuum face seal and jamnut

Close up hermetic thermocouple connector

Close up hermetic thermocouple connector

High quality connectors selected and designed into every hermetic connector assembly

Multi-connector and thermocouple feedthrough

Multi-connector and thermocouple feedthrough

Multi-connector and thermocouple feedthrough on Portplate assembly. Douglas Electrical is set up to handle and ship large hermetic assemblies to ensure proper shipment and delivery.

Portplate hermetic thermocouple assembly with integral thermocouple wires and connectors

Portplate Hermetic Thermocouple Assembly with integral thermocouple wires and connectors

Portplate hermetic thermocouple assembly with integral thermocouple wires and connectors

Hermetic NPT Thermocouple feedthrough

Hermetic NPT Thermocouple feedthrough

A wire bushing style feedthrough with NPT threads and thermocouple wires

RBTW hermetic connector to thermocouple wire feedthrough with CF flange

PotCon CF Hermetic Feedthrough

RBTW hermetic connector to thermocouple wire feedthrough with CF flange

PBTR PotCon hermetic bulkhead assembly

PBTR PotCon hermetic bulkhead assembly with Mil-Spec connector

PBTR PotCon hermetic bulkhead connector assembly with Mil-Spec connector and mating connectors

Documents

Literature
Douglas Electrical Components Catalog Cover

Douglas Electrical Components Catalog

PDF Catalog

PotCon Catalog

PDF Catalog
glovebox feedthrough application cover

Glove Box Feedthrough Application Note

PDF Catalog
space simulation feedthru cover page

Space Simulation Application Note

PDF Catalog
vacuum freeze dryer feedthru cover page

Vacuum Freeze Dryer & Lyophilizer Feedthroughs

PDF Catalog
Whitepapers

Wire Bushings for Hazardous Locations

PDF Catalog
sensor whitepaper cover

Sealed Sensor Assembly Gets A Reliability Boost

PDF Catalog

The Six Challenges Of Specifying And Procuring Hermetic Feedthroughs For Space Simulation

PDF Catalog
when wire feedthroughs make sense whitepaper cover

When Wire Feedthroughs Make Sense

PDF Catalog