Hermetic Coaxial Feedthrough | SMA Vacuum Feedthrough

While coaxial cable and connectors are a commodity item, coaxial, or coax, connections are vital in several industries requiring a hermetic connection point. Douglas Electrical Components manufactures custom hermetic coaxial feedthroughs to operate in vacuum environments. Customers can choose from a variety of connection types and select a standard or custom bulkhead mechanical interface. Douglas’ engineering team will work with you to integrate the coaxial wire and/or connectors into the bulkhead fitting. Our vacuum feedthrough designs are focused on applications interfacing with a glovebox or vacuum chamber. While SMA high frequency feedthroughs are a popular choice, Douglas can hermetically seal virtually any coaxial connector including BNC, MCX, MHV, Type N, SHV, SMA, SMC, TNC, UHF, and more.

We will build our multi-port assemblies to reduce the overall footprint and number of penetrations within a chamber.

Featured Standard Designs

Part Number	Housing Style	Description
57915	QF50 Flange	4 female BNC connectors x 4 female BNC connectors (receptacles)
57046	Vacuum Face Seal	Six (6) SMA Jack x SMA Jack
56023	Vacuum Face Seal	Four (4) SMA Jack x SMA Jack
47188	1/2″-20 UNF 2A Vacuum Face Seal	SMA Jack x SMA Jack

TYPES OF COAXIAL CONNECTORS

10-32, BNC, MCX, MHV, Type N, SHV, SMA, SMC, TNC, UHF, and more

COMMON BULKHEAD INTERFACES

Jam-nut bulkhead
CF Flange
KF Flange
Radial O-ring
Vacuum face seal
Threaded connection (NPT, SAE, etc.)
Back-potted assembly

Coaxial Series

57046 SMA Feedthrough

Coaxial Series

57915 Hermetic BNC Feedthrough

Coaxial Series

56023 Hermetic SMA Feedthrough

SMA Series

47188 Hermetic SMA Feedthrough

Does Douglas offer miniature hermetic coaxial feedthroughs?

Douglas Electrical Components can manufacture miniature hermetic coaxial feedthroughs with a jam-nut type assembly. Overall, we traditionally package our feedthroughs for vacuum environments as a complete assembly with multiple coaxial connection points.

Additionally, Douglas has the design capability to integrate other types of connectors into the same coax feedthrough assembly, such as D-sub, RJ-45, and Micro-D connectors.

What is the typical lead time for a coaxial hermetic feedthrough?

Lead time is dependent on the level of customization of the design as well as sourcing of non-stock items. Overall, our lead time is typically 6 weeks AAO (after acceptance of order).

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