Hermetic sealing is a process of creating airtight seals in electronic systems, preventing external contamination and maintaining optimal conditions. Utilizing Hermetic Type N connectors and feedthroughs ensures complete sealing against air or liquid ingress, crucial for mission-critical applications.
What are Hermetic Type N connectors?
Compact hermetic type-N hermetic feedthrough with solder cup end
Originating in the 1940’s, Type N connectors are a type of coaxial RF (radio frequency) connector used in telecommunications and RF applications. These applications require impedance in the range of 50ohms-75ohms.
Hermetic Type N connectors are a specialized version of Type N connectors designed with a sealed, airtight construction. Aerospace and military applications such as radar systems use hermetic Type N connectors. Their ability to maintain a moisture-free and sealed environment is crucial for ensuring the reliable operation of electronic systems. A well-designed hermetic Type N feedthrough can not only withstand harsh environments but also incorporate customized design elements to simplify installation.
Features of Hermetically Sealed Type N Feedthroughs
- Hermetic Type N connector: an RF-enabled coaxial connector using a threaded coupling mechanism for secure connection with a leak-tight connector and housing design.
- Male and female Type N connectors are available, wherein male connectors have external threads while female connectors have internal ones. This eases the mating process.
- Hermetic Type N feedthroughs are designed to be compatible with Type N coaxial connectors, enabling them to pass through sealed enclosures. This coaxial connector is integrated with the enclosure and extend across both sides of the barrier.
- While glass-to-metal sealing is a commonly used method, there are other techniques such as welding, epoxy encapsulation, and more. In glass-to-metal technique, glass is melted at very high temperatures to achieve the required bond or seal. This liquefied glass is pressed against metal and allowed to cool and harden.
- They can withstand pressure around 10,000psi while stabilizing the internal and external pressure surrounding the device or system. Differential pressures can achieve higher common mode pressures.
- These connectors can withstand fluctuations in temperature, pressure, and humidity and have corrosion resistance as well.
Applications of Hermetic Type N Connectors
Hermetic Type N connectors are used in electrical and network installations in many mission-critical applications where airtight seals are crucial. Here are some of the application areas.
- High-frequency applications: These connectors find use in RF and microwave applications with components emitting high-frequency signals, such as in the telecommunication sector, x-ray equipment, satellite and radar sensing equipment, and more.
- Communication and broadcasting: Hermetic Type N connectors are used in antennas, television sets, radios, and so on for connecting transmitters to the equipment.
- Medical: MRI and x-ray equipment use Type N connectivity as well as other diagnostic equipment with sensing abilities.
- Aerospace: Used in radar systems, communication network systems in aircraft, and more.
- Defense: Hermetic Type N connectors and feedthroughs are used in missiles and radar systems, electronic warfare systems, military vehicles, and more.
- Testing and measurement: They are used in spectrum and network analyzers, equipment used for measuring quantities in scientific research,
Douglas Electrical Specializes in Hermetically Sealed Type N Feedthroughs
Are you looking for Hermetic Type N feedthroughs and connectors for your applications? It is crucial to choose a trustworthy supplier with expertise in Hermetics and the ability to customize products according to your specifications. Douglas Electrical, with 80 years of experience in this field, has a reputable presence in the market. We offer customization of Type N coaxial connectors and feedthroughs to precisely match your application needs. Douglas will hermetically seal a single Type Connector or incorporate multiple Type N connectors into a single flange or feedthrough housing, simplifying installation and creating fewer feedthrough points. Reach out to the Douglas Electrical team today to discuss your requirements and explore the best solutions for your project.
