Hermetic Assemblies

The Challenge: High-Demand TVAC Environments Require High-Integrity Feedthroughs Space simulation facilities have demanding vacuum system requirements that leave little room for error. Thermal vacuum chamber (TVAC) testing demands power, signal, and data transmission in and out of the system without compromising the space-like conditions within the chamber. These conditions require hermetic conditions for all electrical, […]

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When it comes to hermetic sealing, not all epoxy processes are created equal. In industries where electrical signal integrity and environmental protection are mission-critical, such as aerospace & defense, and industrial systems, even the smallest failure can lead to costly downtime or system loss. Unlike others, at Douglas Electrical Components, our proprietary epoxy sealing process […]

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  When moving from overall application design to breaking down a component like a hermetic electrical feedthrough, you might question whether it’s truly necessary to consult with someone else. While there may be plenty of catalogs available, consulting with an engineer skilled in feedthrough design can save time and significantly improve your project, making the […]

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  Aerospace testing equipment, operating in the challenging conditions of high altitudes, severe weather, varying atmospheric pressures, and rapid temperature changes, tests the reliability and integrity of electronic and electrical connections. This is where aircraft cables and connectors come into play. They are instrumental in maintaining the functionality and integrity of the aircraft’s electrical systems. […]

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  In today’s demanding environments, reliable data transmission is critical. Douglas Electrical Components steps up with their innovative fiber optic feedthroughs, proven in both hazardous and non-hazardous applications. While optical fibers create many opportunities for data transmission, partnering with a manufacturer you can trust with the handling of delicate fibers is critical. This case study […]

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Douglas Electrical Components manufactures hermetic feedthroughs for high voltage wire, cable, terminal, and connector applications. Utilizing a proprietary hermetic epoxy material and process, Douglas can seal wires , cables and connectors to 30kV and stud terminals over  20kV in a variety of applications and industries.   Transmitting high voltages can be its own challenge but […]

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Cable potting involves encasing conductors in an epoxy, liquid, or gel within an enclosure or feedthrough housing. Douglas Electrical Components employs a proprietary hermetic epoxy to seal wire and cable feedthroughs requiring cable potting. Cable potting is often done in-house by OEM’s or through some Douglas competitors. Differences can arise in the potting encapsulation compound, […]

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  SMA Connectors, or Sub-Miniature Version A, connectors are popular type of coaxial RF connector used to transmit signal. Since the 1960’s, these connectors have been adopted in various applications from Test & Measurement equipment to commercial TV, cable, and antenna connections. Douglas Electrical Components manufactures hermetic SMA feedthroughs and connectors. Feedthroughs allow the mechanical […]

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What is an Electromechanical Assembly? An electromechanical assembly combines components and subassemblies that feature electrical and mechanical design elements to perform a specific function.   For Douglas Electrical Components, we manufacture electrical connectors and feedthroughs that feature both a mechanical interface as well as electrical components to transmit power and/or signal. Our electromechanical assemblies are integrated into larger […]

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Customizable Hermetic Ethernet Connectors for Your Application A standard RJ-45 feedthrough is our part number 48590. It features a vacuum face seal mechanical interface and two RJ-45 jacks. In addition to standard designs, Douglas Electrical Components can hermetically seal any non-hermetic RJ-45 connector into your required mechanical interface. For example, we offer a CF feedthrough […]

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  Hermetic electrical feedthroughs often require more customization than simply hermetically sealing the conductors or optical fibers within a mechanical housing.  At Douglas Electrical Components, it requires various steps in the process of developing a solution that is Design for Manufacturing-ready and suitable for the application’s environment. Customers partner with our sales engineers to review the […]

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  Cable assemblies are a crucial component in transformer applications, as they are responsible for transmitting electrical power and/or signal to operate and monitor the transformer. There are several types of cable assemblies used in transformer applications, including bus bar assemblies, grounding cables, and high-voltage cables. Bus bar assemblies distribute electrical power within the transformer. They […]

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Design for Manufacturability, or DFM, is the practice of designing products in a way that makes them easy and cost-effective to manufacture. This is especially important in the field of hermetic electrical feedthroughs. Hermetic electrical feedthroughs provide a sealed electrical connection between the inside and outside of a sealed enclosure. They are airtight and withstand extreme environments, […]

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We’ve shipped our share of standalone hermetic feedthroughs over the years. Increasingly, however, sealed hermetic penetrations leave our plant as a part of a value–added assembly. These turnkey assemblies typically combine our hermetic feedthrough technologies with non-hermetic connectors, printed circuit boards, flex circuits and wire harnesses. Assemblies can also incorporate strain relief, water-blocking overmolds, jacketing, shrink tubing, breakouts, mechanical subassemblies and patch […]

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