Hermetic assy - 3D

Hermetic Feedthrough Whitepaper

Types of Hermetic Seals:

Glass-to-Metal Seal versus Hermetic Epoxy

CONTENT INCLUDES

  • Hermetic seal definitions
  • Epoxy characteristics
  • Material & coefficient of thermal expansion
  • Material bonding
  • Operating environment comparison
  • Conclusion

Introduction

Hermetics is defined as creating a seal or closure that is complete and airtight. The industry standard rating for Ultra-High Vacuum
(UHV) is achieving < 1x10-9 cc Helium per second and is measured by mass spectrometer. Positive pressure applications can also require
testing from simply bubble tests to pressurized system verification, depending on the application requirements. Various technologies
exist to create a hermetic electrical seal between two points, with two of the more common technologies being glass-to-metal seals
and epoxy-based hermetic feedthroughs.


Find a feedthrough type that aligns to your application. Customize it to your needs.

OptiSeal-fiber-optic-feedthroughs

Fiber Optic Feedthroughs

OptiSeal Series

StudSeal-hermetic-power-terminal-seals

Hermetic Terminal Seals

StudSeal Series


Contact Information

Douglas Electrical Components, Inc.

5 Middlebury Blvd.

Randolph, NJ 07869

Phone: +1 (973) 627-4810

Email: contactus@douglaselectrical.com