Junior-D Connectors
The Hermetic Solution Group’s family of hermetic Junior-D connectors (.030″ Contact Pitch) are compatible with lightweight materials like titanium and aluminum as well as conventional iron/nickel alloys. They are used in defense, space, and commercial applications where an extremely rugged and reliable hermetic seal is an absolute requirement. These Junior-D connectors, that incorporate the unique controlled CTE characteristics, chemical bonding properties and polycrystalline structure of Kryoflex® allow the Hermetic Solutions Group to manufacture this part with aluminum, titanium or 304L stainless steel shells and gold-plated beryllium-copper contacts for excellent electrical performance and environmental characteristics. These DC connectors can be produced for both laser-weld and solder-in applications.The Hermetic Solutions Group’s Junior-D connectors are much smaller version of our Mil-Spec Sub-D hermetic connectors and provide a space savings of approximately 70% over a standard Sub-D hermetic connector.

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Junior-D DC Connectors Specifications and Testing Configuration
Performance Configurations | Junior-D | ||||
Low-Profile Flanged | Low-Profile Not Flanged | Standard Profile Flanged | Standard Profile Double End | ||
Specifications | Material Compatibility | Designed for Aluminum, Titanium or Iron/Nickel Alloy applications | |||
Contact Material | Beryllium Copper CDA Alloy 172/173 | ||||
Shell Finish Options | Passivated, Nickel/Gold Plated or Chromate Conversion Coated as applicable | ||||
Contact Finish | Nickel/Gold Plating | ||||
Interface | Proprietary | ||||
No. of Contacts | 9, 15, 21, 25, 31, 37 | ||||
Opt. Solder Cup | Contact us here | ||||
Performance | Leak Rate | Less than 1×10-9 cc/sec Helium at 1 atmospheric differential pressure | |||
Thermal Cycling | Tested to 500 (minimum) thermal cycles without hermetic performance loss | ||||
Insulation Resistance | Connectors provide greater than 5,000 Megohms at 300 VDC when tested in IAW MIL-STD-1344, Method 3003 | ||||
Dielectric Withstanding Voltage | Connectors exhibit no evidence of breakdown or flashover when tested in IAW MIL-STD-1344, Method 3003 | ||||
Corrosion Resistance | Connectors meet salt spray test in IAW MIL-STD-1344, Method 3003 | ||||
Operating Temperature | -65°C to 200°C |