Anti-Oxidation & Anti-Corrosion: Sealed And Hermetically-Sealed Connectors

What Are Sealed And Hermetically Sealed Connectors?

Sealed and hermetically sealed connectors are specifically designed to protect against oxidation or corrosion caused by the ingress of moisture or gas. They ensure uninterrupted signal transmission without interference.

How Many Series? What Is Your IP Rating?

(IP Ratings Guide)

Our sealed connector series include N, BNC, TNC, SMA, and adapters.

Sealed connectors provide protection with an IP68 rating.
Hermetically sealed connectors offer sealing with a helium leak rate of 1×10⁻⁸ cc/sec, making them ideal for outdoor and harsh environments.

Customization options are also available to meet specific application needs.

Comparison: Sealing Materials

(Sealing Materials Comparison)

Sealing materials such as O-rings and glass beads are commonly used in connector design.

Glass bead is an ideal electrical insulating material for hermetic connectors. Its mechanical properties provide high strength and reliable hermetic sealing.
We utilize a one-piece integrated connector body combined with a glass bead to ensure perfect hermetic sealing, even when unmated.

The graphic below compares different sealing materials:

Comparison: Sealed & Hermitically-Sealed Connectors

The following table listed the features of sealed and hermetically sealed connectors to help you understand our products better.

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Comparison Item	Sealed Connectors	Hermetically Sealed Connectors
Protection Level	Advanced Waterproof Protection (IP68)	Helium Leak Rate < 1x10⁻⁸ cc/sec
Primary Function	Water & dust resistance	Total isolation from water, gases, and chemicals
Applications	• Outdoor sensors • Radio equipment • Wireless communications & antennas • RF testing requiring strict moisture/gas prevention	• Space exploration • High vacuum systems • Military & commercial aviation • High-pressure or high-altitude environments
Hydrostatic Pressure Test	3kg/cm² MIN	7kg/cm² MIN

Comparison: Sealing Type

(Sealing Type Comparison)

Besides the choice of sealing materials, Chin Nan utilizes different techniques to fulfill customers' requirements. There are four sealing types in the below graphic. The level of sealing can be achieved to meet the requirements when mated or unmated.