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The six challenges of specifying and procuring hermetic feedthroughs for space simulation

From Douglas Electrical Components

The purpose of this white paper is to share the details and knowledge that engineers at Douglas Electrical have gained over the years regarding the specification and sourcing of hermetic seals and feedthroughs used in space simulation vacuum chamber applications. Having worked with most major space simulation facilities over the years, it is our hope that by sharing these observations, vacuum chamber test engineers both experienced and inexperienced will have an easier time solving the typical problems that can occur in feedthrough applications.

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Electrical Feedthroughs
Electrical feedthroughs transmit electrical current through the walls of a pressurized or vacuum system through a hermetic seal.
Feedthroughs
Feedthroughs transmit electrical current, fluids, optical signals, or mechanical motion through the walls of a pressurized or vacuum system through a hermetic seal.
Product Announcements
Douglas Electrical Components - Space-Simulation Feedthroughs
Space-simulation facilities, which are expensive to operate and with zero tolerance for failure, depend on Douglas Ductorseal/PotCon feedthroughs. In the high-vacuum, high-solar-radiation,... (read more)
Douglas Electrical Components - Feedthroughs Cut Assembly Costs Up to 50%
For semiconductor applications, the space available in a vacuum chamber may require square, rectangular or triangular feedthroughs -- shapes easily accommodated with ductile, epoxy-based filler. (read more)
Douglas Electrical Components - Domestic Quick-Turn Custom Feedthroughs
Because both our engineers and our production facility are onshore in our state-of-the-art New Jersey location, Douglas is able to design, prototype and manufacture custom feedthrough orders of... (read more)
Douglas Electrical Components - Multiple Feedthroughs On Only One Plate
Custom-designed and fabricated portplate assemblies come fully assembled with pre-tested multiple feedthroughs. The plates can house variety of connector densities and counts... (read more)
Douglas Electrical Components - StudSeal™ Hermetic Feedthroughs from Douglas
StudSeal™ hermetic feedthroughs are used in vacuum or pressure applications where high current or high voltages penetrate a barrier. These customized connector seals allow for easy specification... (read more)
Fusite - Compressor Feedthroughs
Fusite manufactures premium glass-to-metal (GTM) hermetic seals, connectors, feedthroughs, and related components for air conditioning and refrigeration applications... (read more)
Conax Technologies - Power Lead High Pressure Electrical Feedthrough
The Conax Technologies Power Lead (PL) high pressure electrical feedthrough is a reusable steel fitting designed for pressure or vacuum sealing of insulated leadwire, in applications such as... (read more)
Douglas Electrical Components - Feedthroughs Ideal for Alternative Energy
Douglas Electrical's feedthroughs provide a required technology enabler in many alternative energy applications -- wind turbines, in particular. (read more)
Topics of Interest

The purpose of this white paper is to share the details and knowledge that engineers at Douglas Electrical have gained over the years regarding the specification and sourcing of hermetic seals and...

The purpose of this paper is to share the experience and knowledge that engineers at NASA and Douglas Electrical have gained regarding the specification of hermetic seals and feedthroughs used in...

Service wells are vacuum components that provide a transition stage between the pumping stack or system and the bell jar or chamber. Base wells integrate the features of both a baseplate and a...

The CeramTec multipin connector category of products describes hermetic feedthroughs of two or more conducting pins that accept plugs on the air side. Some connectors allow for plugs on the vacuum...

MDC fluid feedthroughs are designed for the transmission of gasses or coolants into high and ultrahigh vacuum environments. They are constructed from 300 series stainless steel and available with...