The 28285 is a Varian-style vacuum feedthrough with a stainless steel housing and aluminum clamps, designed to hermetically seal electrical conductors through vacuum or pressure barriers. It supports conductor sizes from #24 AWG to #14 AWG and is rated for vacuum pressures down to 1x10⁻⁹ Torr and operating temperatures from 4 K to 200°C. The feedthrough is compatible with thermocouple wires and includes an O-ring seal for vacuum compatibility up to 10⁻⁷ mm Hg. The housing dimensions are 1.33" diameter by 2.75" length, with lead lengths configurable via suffix codes. All variants in this series are pre-tested and ready for direct installation.
CF (ConFlat*) flanges use a clamping mechanism to hermetically seal a copper gasket between the chamber wall and the feedthrough. This minimizes the effect of tightening the housing rather than the jamnut in a vacuum face seal design. A series of bolts secure the feedthrough directly to the chamber wall. CF flanges can be more time consuming to install and uninstall than a KF-style flange, with specialty tooling and know-how. Our CF feedthroughs are mounted from the atmospheric side of the chamber, giving greater accessibility to the user to install the feedthrough properly.
Douglas Electrical Components manufactures hermetic electrical feedthroughs utilizing a CF flange to create convenient mounting and installation. Our vacuum rated CF feedthroughs are available in various electrical connections including connectors, wires, cables, and optical fibers.
Our epoxy technology permits us to not only create high density feedthroughs, but also combine multiple interfaces into the same feedthrough flange, reducing overall feedthrough cost and saving space. This can be as simple as integral thermocouple wire to connectorized harnesses with integral shielding, strain relief, and sleeves.
Our CF feedthroughs provide further flexibility with their ability to have different electrical interfaces on each side of the chamber. Many customers will combine connectors with integral wires to simplify installation in or out of a vacuum chamber. Douglas can integrate the exact conductors you need to transmit power or signal.
Work with our technical sales engineers to confirm the electrical connection you prefer and we’ll design and quote the feedthrough that best aligns to your needs. Additionally, we offer competitive lead times with expedites as low as one week possible.
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*ConFlat is a registered trademark of Agilent Technologies
Features
PERFORMANCE CAPABILITIES
ELECTRICAL CONNECTION TYPES
COMMON CONNECTOR TYPES
CONNECTOR BRANDS WE SEAL, INTEGRATE, & CUSTOMIZE
| Douglas Electrical Components | |
|---|---|
| Product Category | Electrical Feedthroughs |
| Product Number | 28285 |
| Product Name | 6 Position Conflat Hermetic Wire Feedthroughs |
| Electrical Feedthrough Type | Instrumentation; Thermocouple |