Hermetic Seal Connectors: Glass-to-Metal Seal and Signature Lightweight Hermetic Connector Solutions

Military QPL and Commercial Connectors for Harsh Environment Air-Tight-Seal Applications

Hermetic connectors are a special class of sealed Mil/Aero interconnect that incorporates glass-to-metal or other highly-engineered sealing technology. Hermetic seal connectors are specified for applications as divergent as submarines and orbiting satellites. They are deployed to resist moisture ingress in underground applications and to withstand pressure differentials in vacuum chambers, laboratory equipment and commercial and military aircraft.

Hermetic seal connectors, such as the MIL-DTL-38999 Series I, II, III and IV supplied by Glenair, are principally designed for use in military aerospace — in fact, the sealing requirement for connector hermeticity was originally driven by military electronic applications. But the products are equally at home in commercial applications such as oil-patch, logging equipment or medical devices.

Hermetic seal connectors thrive in harsh application environments. Sensitive photographic, sensor and surveillance equipment mounted in the tactical Unmanned Aerial Vehicle for example, must be able to operate in severe weather conditions, at high altitudes, under extremes of atmospheric pressure and in rapidly changing temperature gradients. Hermetic seal connector devices penetrating vacuum sealed black box equipment are selected for their ability to protect the controlled equipment environment by maintaining an air-tight seal between severe flight conditions and aircraft's sensitive payload.

While glass-to-metal sealing has traditionally been the "gold standard" of hermetic sealing, new lightweight encapsulant sealing technology from Glenair, called CODE RED, delivers mission-critical hermetic sealing with better contact electrical performance and a significant reduction in weight.

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NASA Standards

Glenair supplies hermetic feed-thrus and hermetically-sealed receptacle connectors that meet the following NASA standards for interconnects used in manned spacecraft:

• NATC (NASA Threaded Coupling)
• SSQ21635 (NASA standard for circular, mostly hermetically sealed connectors used in manned spacecraft)
• NASA-STD-8739 (NASA assembly standard for cable systems on the ISS, ESCC manufacturing standards are compliant)

Standard Configurations Include:

• Hermetic power inserts based on MIL-DTL-5015 in shell sizes 25L to 37
• Signal hermetic designs IAW MIL-DTL-38999 Series III shell sizes 9 to 25
• Rated operating temperatures -115°C to 200°C (-175°F to 392°F)

Click to see our full line-up of CODE RED Lightweight Hermetic Sealing Connectors

CODE RED Lightweight, Mission-Critical Hermetic Sealing

• "Mission-Critical" Hermetic Sealing with 1x10^-7 Leak-Rate Performance

Slideshow Presentations

• Hermetic Connector Sealing Technology: Glass-to-Metal Seal and Lightweight CODE RED Hermetic Solutions
• CODE RED Lightweight Hermetic Seal Connectors for Mission-Critical Applications

Product Datasheet

• Glass-Sealed Hermetic Connectors
• Lightweight CODE RED Hermetic Seal Connectors

Introduction to Hermetic Seal Connectors

• Introduction to Glenair Hermetic Seal Connector Products
• Space-Grade Application Guidelines
• Helium Leak Rates and Testing
• Hermetic Connector Designer's Application Checklist

Connector Modification Codes and Catalog Notes

• Special Leak Rate Modification Code 585 and Dual O-Ring Material Designation Mod Code 1358

Related Catalogs

• Rugged Connectors for Geophysical and Offshore Applications
• Miniaturized Circular Connectors (38999, 28840, 5015, and Other Cylindrical Designs)

PC Tail Termination Note

To prevent detrimental intrusion of cleaning solvents/water into the connector when terminating, the connector must be protected IAW IPC J-STD-001 and/or NASA STD-8739.3. For assistance and/or additional information, please contact factory.

	MIL-DTL-38999 QPL and Glenair Signature Hermetic Seal Connectors MIL-DTL-38999 Series I, II, III, and IV Family of Hermetic Connectors Glass-to-Metal Seal D38999 Hermetics
	Series 80 Mighty Mouse Hermetic Seal Connectors Section C
	Hermetic Glass-to-Metal Seal Series 806 Mil-Aero Micro Miniature Connectors Micro Miniature Glass-to-Metal Seal and Lightweight CODE RED Hermetic Connectors
	MIL-DTL-26482 Series I and II Type Hermetic Seal Connectors Fast and Reliable Mating Section D
	MIL-DTL-83723 Series III Threaded and Bayonet Coupling Hermetic Connectors
	MIL-DTL-26500 Type Glass Sealed Hermetic Receptacles Popular Connector Designs Superseded by MIL-DTL-83723
	MIL-DTL-5015 Type Hermetic Seal Connectors Section G
	Geo-Marine® Series III Type Hermetic Seal Connectors Section H
	QPL Hermetic MIL-DTL-24308 D-Sub Connectors QPL MIL-DTL-24308/9 and Glenair Commercial Hermetic D-Subminiature Connectors Section J
	MIL-DTL-83513 Type Micro-D Hermetic Seal Connectors Section K
	Micro-Crimp Hermetic Seal Connectors The High-Density, High Performance Hermetic Rectangular Series 79 Section L
	PowerTrip® Hermetic Seal Connectors High Ampacity, Harsh Environment Connector Capable of Meeting the Demanding Requirements of Modern Defense and Aerospace Systems Series 970 Section M

Hermetic High Speed and High Frequency Connectors

Special Hermetic Seal Connectors Section N