Fast. Flexible. Reliable. Join Global Industry Leaders & Get Proven Sealed Solutions Engineered for Harsh Conditions Backed by 80+ Years' Expertise.
Hermetic Electrical Feedthroughs & Connectors
Established in 1944, Douglas Electrical Components® is a leading manufacturer of interconnect solutions, with a wide range of tailored hermetic connectors and feedthroughs designed to meet the exacting demands of high technology industries worldwide. Our precision-engineered sealed connector and harness solutions operate in the field for decades, performing in demanding environments that range from ultra high vacuum (UHV) to high pressure, driving innovation around the globe.
Our technology not only provides optimal performance in mission-critical, harsh environments, but also allows for unmatched design flexibility. You have the freedom and flexibility to customize our solutions to:
- Incorporate virtually any conductor or optical fiber into electrical feedthroughs and passthroughs.
- Work with a variety of materials, including commercial off-the-shelf (COTS) connectors, to create hermetic connectors.
- Augment your solution with additional components and services.
- Test to pressures as high as 15,000 psi (1,000 bar) and leak rates as low as 1×10-10 cc/sec
Our Solutions
Wire, Cable, & Optical Fiber Feedthroughs
Standard and custom wire, cable, and fiber optic solutions including feedthroughs and harnesses. Choose from hermetic or liquid-tight (beyond IP68) options for high-performing, dependable results in demanding conditions.
Hermetic Connectors
Hermetically sealed connectors for plug-and-play results. Combine connectors with virtually any conductor, circuit, or fiber. Flexible options for mechanical interfaces including existing hardware, custom flanges, or customer designs.
Hermetic Terminal Seals
Power applications with either standard and custom options for hermetic terminal seals. Get reliable solutions for pressures ranging from ultra-high vacuum to high pressure. We also provide products for high currents and voltages.
Why Work with Douglas Electrical Components
- Collaborate with connectivity experts to get the right solution – no guesswork needed.
- Standard and custom solutions available.
- LEAN manufacturing uniting technical excellence with dedicated service.
- 100% of parts undergo electrical and mechanical testing.
- Certified standard products, operations, and technicians.
- White glove service from design to delivery.
- Reliable results from the global leader in epoxy-based interconnect solutions.
Our Story
Douglas Electrical Components first produced magnet coils and electromechanical assemblies for aircraft. However, as technology developed over time, our customers noticed fluids leaking into the magnet coil and came to our founder, Edward B. Douglas, for help. Through extensive research, he pioneered the industry’s first epoxy-based wire feedthrough in the mid 1970s. Since that point, Douglas Electrical Components has continuously improved our innovative, epoxy-based sealing solutions to become the global leader in this area. The demand for sealing solutions led the company to phase out its earlier products in order to focus exclusively on feedthrough technology. Today you’ll see our hermetically sealed feedthroughs and connectors thriving for decades in the most demanding environments, ranging from hazardous locations to defense to space simulation.
Sealing Technology Insights
Choosing the Right Hermetic Seals for Semiconductor Equipment
Compare and Contrast the 3 Main Hermetic Seal Types Semiconductor manufacturing equipment operates under strict requirements, with each application presenting its own challenges. Choosing the…
How UL & ATEX/IECEx Feedthroughs Help Prevent Chemical Plant Explosions and Refinery Fires
A process fluid release at the Valero Port Arthur refinery in Texas triggered a significant fire event in early 2026. Weeks later, a separate blaze…
How Immersion Cooling Feedthroughs Protect Data Centers and Supercomputers from Cooling Failures
On November 27, 2025, when millions of Americans were shopping for holiday deals, traders in Chicago faced something far more expensive than missing a sale.…
