Hermetic Headers for Extreme Environments: Precision Meets Protection

In mission-critical industries where failure is not an option, hermetic headers play a pivotal role in ensuring the performance and longevity of sensitive electronic systems. From aerospace to medical devices, these components are engineered to create airtight seals that block out moisture, gas, and pressure variations—guaranteeing reliability even in the harshest operating environments.

Engineered with Glass-to-Metal and Ceramic-to-Metal Seals

At the core of every high-performance hermetic header lies advanced sealing technology. Glass-to-metal and ceramic-to-metal seals offer superior electrical insulation, mechanical strength, and environmental resistance. Whether embedded in a satellite module, surgical implant, or defense sensor, these headers maintain internal integrity when exposed to extreme temperature swings, corrosive elements, or high altitudes.

Custom Multi-Pin and TO Headers for Complex Assemblies

When high-density signal or power transmission is required across sealed barriers, multi-pin hermetic headers provide the optimal solution. These are critical in advanced systems such as pacemakers, avionics, and communication devices. For high-frequency or optoelectronic uses, TO headers (Transistor Outline headers) are designed to support TOSA/ROSA modules, delivering precision connectivity while managing thermal constraints.

Hermetic Connectors and Feedthroughs for Ultimate Reliability

In underwater, vacuum, or space applications, hermetic connectors and feedthroughs act as the protective bridge between sealed environments and critical electronics. Available in both standard and custom configurations, they provide long-term seal integrity and ensure continuous operation across demanding industrial and scientific settings.

Partner with Complete Hermetics for Custom Hermetic Solutions

Complete Hermetics is your trusted U.S.-based manufacturer of hermetic seals, offering custom-engineered hermetic headers, hermetic connectors, feedthroughs, and vacuum viewports. Our expert team combines decades of knowledge in glass-to-metal and ceramic-to-metal sealing technologies to design and manufacture components tailored to your exact performance specifications.

🔹 Contact Complete Hermetics Today
📞 Phone: 714-265-1238
📧 Email: info@completehermetics.com
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Experience unmatched reliability, precision, and protection with Complete Hermetics—engineered for excellence.

 

MIL-SPEC Hermetic Connectors

Aerospace Hermetic Connectors for High-Reliability Environments

In aerospace and other mission-critical sectors, ensuring protection against environmental stress is non-negotiable. Aerospace hermetic connectors are engineered to provide absolute airtightness, blocking moisture, gas, and contaminants from sensitive electronic systems. These components are equipped with durable hermetic seals that uphold system integrity under pressure extremes, rapid altitude changes, and corrosive conditions.

Industries That Depend on Hermetic Technology

From satellites to submarines, a wide range of industries rely on hermetic feedthrough solutions for reliability and safety. In offshore drilling, custom hermetic connectors withstand intense humidity and salinity. In aerospace and defense, MIL-Spec hermetic connectors meet rigorous standards for shock, vibration, and temperature resilience. In the medical field, sealed systems enable sterilized tools and implantable devices to operate without contamination risk.

Connector Types and Material Options

Complete Hermetics manufactures an extensive selection of hermetic connectors to suit varying system needs. Their products include circle hermetic connectors and rectangular hermetic connectors, available in robust materials such as titanium, stainless steel, aluminum, and bronze. Sealing options include glass-to-metal and ceramic-to-metal technologies, with finishes like gold-plating, silver-plating, and tin-plating to enhance conductivity and corrosion resistance.

The Advantage of Custom Solutions

Precision matters—especially in environments where failure is costly. Custom hermetic connectors are designed for seamless integration and optimal performance, ensuring durability and airtightness in specialized applications. Customization also supports unique mechanical and electrical configurations that off-the-shelf connectors simply cannot accommodate.

Discover High-Performance Sealing from Complete Hermetics

Complete Hermetics is a trusted provider of engineered solutions, offering MIL-Spec hermetic connectors, hermetic feedthrough systems, and a wide range of custom sealing options tailored to meet strict industry requirements. With advanced manufacturing and rigorous testing, they ensure products exceed expectations in even the harshest conditions.

Explore the full range of precision-engineered hermetic solutions with Complete Hermetics today 

📞 Phone: 714-265-1238
📧 Email: info@completehermetics.com
🔗 Contact Form: https://www.completehermetics.com/contact-us/

MIL-SPEC Hermetic Connectors

Why Are Hermetic Connectors Essential for High-Reliability Applications?

Understanding the Role of Hermetic Products in Extreme Environments

In critical sectors such as aerospace, military, semiconductor manufacturing, and medical technology, hermetic products are essential for ensuring long-term functionality and reliability. Among these, hermetic connectors stand out as crucial components that prevent gas and moisture intrusion, enabling secure and uninterrupted signal and power transmission. These components are designed to withstand harsh conditions, including extreme temperatures, high pressure, and chemical exposure.

Custom Hermetic Feedthroughs and Connectors for Specialized Needs

Precision engineering is at the heart of custom hermetic feedthroughs and connectors. Whether you’re working with circular or rectangular interfaces, selecting the right hermetic seal manufacturer makes all the difference. Companies like Complete Hermetics specialize in designing and producing glass to metal seals and ceramic to metal seals using materials such as Kovar, stainless steel, titanium, and aluminum—each selected for optimal performance in high-stress environments. These materials ensure long-term durability while maintaining electrical integrity and leak-tight protection.

Choosing the Right Hermetic Headers and Connector Formats

The design of hermetic headers and connector formats—be they circular for compact applications or rectangular for optimized layouts—matters greatly in defense, avionics, and industrial automation systems. MIL-Spec standards like MIL-DTL-38999 guide the manufacturing of rugged hermetic connectors capable of performing under severe conditions. These connectors are available in various shell sizes and pin configurations, allowing full customization for your unique system requirements.

Why Glass-to-Metal and Ceramic-to-Metal Seals Are Critical

Glass to metal seals and ceramic to metal seals form the foundation of any reliable hermetic seal. These bonding techniques are engineered to offer unmatched electrical insulation, thermal stability, and leak resistance, making them essential in mission-critical applications where failure is not an option.

Partner with Complete Hermetics for Your Hermetic Connectivity Needs

When reliability, precision, and durability matter most, Complete Hermetics is your trusted partner. As an industry-leading hermetic seal manufacturer, they offer a full line of hermetic products—including custom hermetic feedthroughs, hermetic headers, and hermetic connectors built to exact specifications. Their expertise in glass to metal seals and ceramic to metal seals ensures each product is engineered for high-performance and long-term reliability.

Contact Complete Hermetics today to explore customized solutions that safeguard your high-value systems in the most demanding environments.

📞 Phone: 714-265-1238
📧 Email: info@completehermetics.com
🔗 Contact Form: https://www.completehermetics.com/contact-us/

How Hermetic Headers Safeguard Critical Electronics Across Industries

In environments where failure is not an option—such as aerospace, medical, and defense systems—hermetic products play a crucial role in protecting sensitive electronics. Among them, hermetic headers stand out for their unmatched ability to shield internal components from moisture, corrosive gases, extreme temperatures, and pressure fluctuations. Trusted across mission-critical applications, these components are the silent protectors of performance and safety.

Precision-Engineered Hermetic Headers

At the heart of many electronic assemblies lies the glass to metal seal or ceramic to metal seal, ensuring airtight integrity. These technologies, central to the design of hermetic headers, prevent environmental ingress while supporting high electrical insulation and mechanical strength. From satellite modules to surgical implants, these headers maintain operational stability under the harshest conditions.

Multi Pin Headers: Designed for Demanding Interfaces

Custom hermetic feedthroughs like multi pin headers offer seamless signal transfer between sealed environments. These components are key for data, power, and signal continuity while preserving the integrity of the system. In scenarios where life or mission success depends on reliability, such as avionics or pacemakers, these headers are indispensable.

TO Headers for Optoelectronic Precision

TO headers, or Transistor Outline headers, are optimized for optical and high-frequency applications. Often integrated into TOSA and ROSA assemblies, they enable superior performance in communication systems. Every TO header from Complete Hermetics is carefully tailored to meet your exact specifications—ensuring reliability in both space-limited and heat-sensitive environments.

Hermetic Connectors: Dependable Sealing for Complex Systems

Whether used in subsea installations or vacuum chambers, hermetic connectors provide robust sealed interfaces between different electronic units. These connectors, available in standard or custom hermetic feedthroughs, protect against system failure by maintaining perfect seals under dynamic pressure and thermal stress.

Partner with Complete Hermetics for Hermetic Excellence

As a premier hermetic seal manufacturer, Complete Hermetics delivers cutting-edge solutions, including hermetic headers, hermetic connectors, and custom-engineered seals. Our proven expertise in glass to metal seals and ceramic to metal seals ensures that your technology remains protected from the elements. Explore our complete line of hermetic products today and experience the precision and performance only Complete Hermetics can deliver.

Contact Complete Hermetics today to explore our full line of hermetic products. 

 

Hermetic Headers: Protecting Electronics in the Harshest Environments

In the world of advanced electronics, hermetic headers play a pivotal role in safeguarding components from hostile conditions. These specialized components are essential to industries such as aerospace, medical, and defense, where protection from moisture, gases, temperature extremes, and pressure variations is non-negotiable. As a trusted hermetic seals manufacturer, Complete Hermetics designs and fabricates high-performance headers and terminals that preserve the integrity of sensitive electronic systems.

Multiple Pin Headers for Superior Connectivity

Multi pin headers are crucial in connecting various electronic systems while maintaining an airtight seal. Built for durability and precision, these components are engineered to thrive in extreme environments. From aircraft control systems to implantable medical devices, multi pin headers ensure uninterrupted signal transmission without compromising the seal—delivering both performance and protection in equal measure.

TO Headers: Specialized Transistor Solutions

TO headers (transistor outline headers) are specially crafted for high-frequency and optoelectronic applications. Commonly used in TOSA (transmit optical subassembly) and ROSA (receive optical subassembly) configurations, these headers provide robust housing and hermetic protection for semiconductors and photonic components. At Complete Hermetics, every TO header is custom-designed to ensure the perfect fit and optimal function for your application.

Hermetic Connectors: Dependable Seals for Complex Systems

Another standout among hermetic products is the hermetic connector—essential for creating sealed electrical interfaces between different modules. These connectors are ideal for vacuum systems, undersea cables, or defense electronics where even the slightest leak could result in failure. Complete Hermetics offers both standard and custom configurations to meet your exact requirements.

Rely on Complete Hermetics for Your Hermetic Needs

When it comes to high-quality hermetic headers, connectors, and seals, Complete Hermetics is the name to trust. Our team combines expert engineering, precision manufacturing, and rigorous testing to deliver unmatched reliability. Whether you need multi pin headers, TO headers, or custom hermetic connectors, we’re here to meet your unique challenges. Contact Complete Hermetics today to explore our full line of hermetic products and discover how we can safeguard your technology from the inside out.

 

MIL-SPEC Hermetic Connectors

Hermetic Connectors: Engineered Excellence for Extreme Environments

In high-stakes industries such as aerospace, military, and advanced manufacturing, hermetic connectors are indispensable. These rugged, sealed interconnects maintain the integrity of mission-critical electronic systems by preventing the intrusion of gases, liquids, and moisture. As a key segment of hermetic products, these connectors are engineered for uncompromising performance under high pressure, elevated temperatures, and other severe operating conditions.

Custom Hermetic Connectors: Built for Precision

A leading hermetic connector manufacturer, Complete Hermetics offers a comprehensive range of custom hermetic connectors tailored to exact client specifications. Whether you require circle hermetic connectors or specialized variants for unique systems, our expertise in glass-to-metal and ceramic-to-metal sealing ensures long-term stability and protection. Materials such as Kovar, Stainless Steel, Titanium, and Aluminum are chosen for their superior sealing capability and compatibility with advanced applications, from avionics to semiconductor manufacturing.

Circle & Rectangular Hermetic Connectors for Versatility

For applications demanding round interconnects with compact yet robust construction, circle hermetic connectors are the preferred choice. These are available in solder-in or laser weld configurations, offering engineering teams flexibility in design and installation.

Rectangular hermetic connectors, including Sub D formats, are purpose-built for rugged defense, space, and industrial applications where space optimization and reliability are key. These rectangular models ensure secure integration into complex systems while delivering long-lasting hermetic protection.

MIL-Spec Hermetic Connectors: Trusted in Defense Systems

For the most demanding environments, MIL-Spec hermetic connectors—such as those adhering to MIL-DTL-38999 standards—are indispensable. Offering multiple shell sizes, coupling styles, and contact layouts, these connectors are designed for precision signal and power transmission in aerospace and military platforms. Complete Hermetics ensures full compliance with military specifications, making them a trusted partner in defense-grade connectivity.

Complete Hermetics: Your Hermetic Solutions Expert

When performance under pressure is non-negotiable, turn to Complete Hermetics. Our high-reliability hermetic products—from custom hermetic connectors to circle hermetic connectors  and advanced MIL-Spec hermetic connectors—deliver unmatched durability and sealing integrity. 

Contact Complete Hermetics today to find out how they can assist with your specific connector requirements and elevate the reliability of your critical equipment.

MIL-SPEC Hermetic Connectors

Everything You Need to Know About Hermetic Connectors: Top 20 Frequently Asked Questions

Hermetic Connectors: Top 20 Frequently Asked Questions

Hermetic connectors are vital components in high-performance applications where airtight, moisture-resistant, and pressure-proof connections are critical. Whether you’re in aerospace, defense, medical, or industrial manufacturing, understanding these connectors can help you make better design decisions.

Here are the most frequently asked questions about hermetic connectors—answered clearly and concisely.

1. What is a hermetic connector?

A hermetic connector is an electrical connector that features a hermetically sealed interface to prevent the ingress of gases, liquids, and contaminants.

2. How do hermetic connectors work?

They work by using airtight materials—often glass-to-metal or ceramic-to-metal seals—that prevent any leakage across the barrier, maintaining the integrity of the system.

3. What is the difference between hermetic and non-hermetic connectors?

Non-hermetic connectors do not offer gas or moisture sealing, making hermetic connectors the go-to choice for critical, sealed environments.

4. What materials are used in hermetic connectors?

Typical materials include stainless steel, Inconel®, Kovar®, ceramics, and borosilicate glass for their thermal and chemical stability.

5. Are hermetic connectors waterproof or airtight?

Yes, they are designed to be both airtight and moisture-proof, ideal for high-pressure and vacuum environments.

6. What are hermetic connectors used for?

They are commonly used in aerospace, military, medical devices, oil & gas, vacuum chambers, and space technology.

7. Where are hermetic connectors commonly installed?

Applications include sensors, battery systems, vacuum systems, implantable devices, and satellite components.

8. How do you test a hermetic seal on a connector?

Common tests include helium leak detection and pressure testing to ensure airtight performance.

9. What are the temperature and pressure ratings for hermetic connectors?

Many hermetic connectors operate from -65°C to +200°C and withstand high pressures, depending on the design and materials used.

10. Can hermetic connectors be used in high-vacuum environments?

Yes, they are ideal for vacuum chambers, particle accelerators, and space applications due to their gas-tight sealing.

11. What industries use hermetic connectors?

Industries include:

  • Aerospace & Defense
  • Medical & Biomedical
  • Energy (Nuclear & Oil)
  • Industrial Automation
  • Telecommunications

12. Can I get custom hermetic connectors for my application?

Yes, many manufacturers such as Complete Hermetics offer custom hermetic connector solutions tailored to your voltage, current, pressure, and mounting needs.

13. What certifications are required for hermetic connectors in aerospace or medical devices?

MIL-SPEC (e.g., MIL-DTL-38999), ISO 9001, and other industry-specific certifications are often required for regulated environments.

14. What are MIL-SPEC hermetic connectors?

These are hermetic connectors designed and tested to meet U.S. military standards for reliability and performance.

15. Are there hermetic connectors for fiber optics or coaxial cables?

Yes, hermetic feedthroughs are available for fiber optics, RF, and coaxial connections.

16. What is a glass-to-metal hermetic seal?

A glass-to-metal seal uses glass fused to metal at high temperatures to create an airtight, corrosion-resistant seal.

17. What is a ceramic-to-metal seal in hermetic connectors?

Ceramic-to-metal seals are used when higher dielectric strength or temperature resistance is needed.

18. How do I choose the right hermetic connector for my project?

Consider:

  • Electrical specs
  • Environment (temperature, pressure)
  • Mounting configuration
  • Sealing method
  • Material compatibility

19. Can hermetic connectors be reused?

Some are reusable if undamaged, but many applications—especially in aerospace or medical—require new connectors for each use.

20. What are TO headers and how are they related to hermetic connectors?

TO (Transistor Outline) headers are hermetically sealed components used in packaging semiconductors and sensors—often integrated with hermetic connectors.

✅ Need Hermetic Connector Solutions You Can Trust?

Contact Complete Hermetics today to learn more about our custom hermetically-sealed connectors, circular hermetic connectors, rectangular hermetic connectors, and MIL-Spec hermetic connectors. We offer a wide range of standardized sizes and can tailor our designs to meet your most demanding requirements.

MIL-SPEC Hermetic Connectors

Hermetic Connectors for Rugged Environments: Precision You Can Rely On

In demanding industries where absolute reliability is essential, hermetic connectors are a cornerstone of secure and stable interconnect technology. Engineered to perform under extreme pressures, high temperatures, and harsh environmental conditions, these hermetic products ensure the integrity of electronic systems by preventing the ingress of gases or moisture. Whether for aerospace, defense, or industrial use, custom hermetic circular connectors play a pivotal role in mission-critical applications.

Precision Engineering with Custom Hermetic Circular Connectors

Complete Hermetics specializes in manufacturing both glass-to-metal and ceramic-to-metal sealed connectors, delivering unmatched durability and performance. The company produces custom hermetic circular connectors using traditional materials like Stainless Steel and Kovar, along with lightweight alternatives such as Aluminum and Titanium. These materials are ideal for applications requiring reduced weight without sacrificing strength or seal integrity. Their circle hermetic connectors are available for solder-in and laser weld installations, providing flexibility across a range of engineering requirements.

Durability with Hermetic Rectangular Connectors

In addition to circular models, Complete Hermetics manufactures rectangular hermetic connectors designed for robust defense and industrial environments. These Sub D and other hermetically sealed rectangular formats meet the highest standards of durability and are engineered to withstand rugged operational settings. Like their circular counterparts, these are available for both solder and laser weld options, ensuring seamless integration into existing systems.

MIL-Spec Hermetic Connectors for Aerospace and Defense

The company’s most advanced offerings include MIL-Spec hermetic connectors, such as the highly trusted MIL-DTL-38999 circular connectors. These are a preferred solution for aerospace and military applications, offering nine shell sizes, multiple coupling methods, and a variety of contact arrangements. Complete Hermetics’ 38999 models meet full compliance with MIL-DTL-38999 standards, ensuring optimal performance in the field.

Partner with Complete Hermetics for High-Reliability Hermetic Solutions

When it comes to precision, durability, and absolute hermetic sealing, Complete Hermetics delivers superior results across all industries. Whether you need custom hermetic circular connectors, circle hermetic connectors, or rectangular hermetic connectors compliant with MIL-Spec, we’re ready to meet your exacting needs. Contact Complete Hermetics today for expertly engineered hermetic products that perform under pressure.

MIL-SPEC Hermetic Connectors

What Types of Hermetic Connectors Are Available?

Hermetic connectors are crucial components in numerous applications, ensuring reliable operation in environments where air-tight sealing is a must. Complete Hermetics stands out as a leader in producing custom hermetic connectors, designed to meet stringent specifications in various demanding fields. Here’s a closer look at the range of options available and the innovations that set Complete Hermetics apart in the industry.

Innovative Designs and Materials

At the forefront of hermetic connector technology, Complete Hermetics offers an array of designs, including circular hermetic connectors and rectangular hermetic connectors. These connectors are not only versatile but also feature advanced materials like Kovar, Stainless Steel, Aluminum, and Titanium. The use of lightweight materials such as Aluminum and Titanium is particularly noteworthy, as these contribute to the overall durability and efficiency without compromising on quality.

Types of Hermetic Seals

Complete Hermetics specializes in hermetically glass sealed connectors and hermetically ceramic sealed connectors. These sealing techniques ensure maximum protection against environmental challenges. Glass seals are renowned for their robustness and superior insulation properties, making them ideal for harsh conditions. Ceramic seals, on the other hand, offer excellent thermal stability and resistance to thermal shock, enhancing the connectors’ reliability over a wide range of temperatures.

Applications and Installations

These hermetic connectors are engineered for resilience and longevity, accommodating both solder-in and laser weld installation methods. This flexibility in installation allows Complete Hermetics to cater to a broad spectrum of industries, from aerospace to the military. Their connectors are often specified in applications requiring MIL-Spec hermetic connectors, where adherence to military specifications is critical for performance and safety.

Complete Hermetics: Your Go-To Source for Hermetic Connectors

Whether your needs are for standard or custom hermetic connectors, Complete Hermetics is your trusted provider. With a focus on innovation and quality, their hermetic connectors are designed to perform flawlessly in the most challenging environments. If you’re looking for reliable, high-quality hermetic connectors, look no further than Complete Hermetics. Contact them today to find out how they can assist with your specific connector requirements and elevate the reliability of your critical equipment.

Custom Hermetic Feedthroughs

Hermetic Seals: The Airtight Solution for Critical Applications

Hermeticity refers to the state of being airtight, ensuring no gases can penetrate through a sealed barrier. In interconnect applications, hermetic seals are essential for preventing gas leakage in pressure-sensitive environments, particularly through connectors. These innovative solutions are indispensable for industries where airtight technology safeguards the functionality and safety of vital equipment.

The Importance of Hermetic Feedthroughs

A fundamental application of hermetic technology lies in hermetic feedthroughs, which enable the secure transmission of power, signals, or fluids through pressure barriers. These components are meticulously designed to maintain system integrity, even in extreme conditions. From aerospace to medical devices, hermetic feedthroughs play a crucial role in ensuring reliable and safe operations.

Custom Hermetic Products Tailored to Your Needs

Complete Hermetics excels in providing custom hermetic products designed to meet diverse and specific industry requirements. Whether your project involves niche applications or large-scale production, their team delivers precision-engineered solutions. Their portfolio includes hermetically sealed connectors, hermetic terminals, and advanced glass-to-metal and ceramic-to-metal feedthroughs, ensuring unmatched performance and durability.

State-of-the-Art Manufacturing in Santa Ana, California

Located in the heart of California, Complete Hermetics leverages cutting-edge modeling and prototyping technologies to deliver superior-quality solutions. From custom designs for specialized projects to standardized components for high-volume needs, their advanced manufacturing processes ensure reliability and consistency in every product.

Why Choose Complete Hermetics?

As a global leader in producing hermetic packages and connectors, Complete Hermetics is committed to innovation, precision engineering, and customer satisfaction. Their expertise and dedication make them the trusted partner for industries requiring airtight interconnect solutions. With a proven track record of delivering high-performance products, they have earned a reputation for excellence worldwide.

Contact Complete Hermetics Today

For all your needs in hermetic seals and feedthroughs, and hermetically sealed connectors, trust Complete Hermetics to deliver exceptional quality and performance. Explore their innovative solutions to ensure your systems remain airtight and reliable. Contact their expert team today to discuss your project requirements. Complete Hermetics is your partner for airtight success!