Junior-D Connectors
PacAero’s family of hermetic Junior-D connectors (.030″ contact pitch) are compatible with lightweight materials such as aluminum and titanium, as well as conventional iron/nickel alloys. They are designed for use in military, space, and commercial applications where environmental conditions require an extremely rugged and reliable hermetic seal. The Junior-D connectors feature unique controlled CTE characteristics, chemical bonding properties and polycrystalline structure of Kryoflex® allow PacAero to manufacture this part with a 304L stainless steel insert and gold-plated beryllium-copper contacts for excellent electrical performance and environmental characteristics. These DC connectors can be produced for both laser-welded and solder-in applications.
PacAero’s hermetic Junior-D connectors are a miniature version of our mil-spec Sub-D hermetic connectors and provide a space savings of 70% over a standard Sub-D.
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Junior-D DC Connector Specifications and Testing Configuration
| Performance Configurations | Junior-D |
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| Low-Profile Flanged | Low-Profile Not Flanged | Standard Profile Flanged | Standard Profile Double End |
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| Specifications | Material Compatibility | Designed for Aluminum, Titanium or Iron/Nickel Alloy applications |
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| 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 PacAero |
| Performance | Lead Rate | Less than 1×10-9cc/sec Helium at 1 atmospheric differential pressure |
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| Thermal Cycling | Tested to 500 (minimum) thermal cycles without hermetic performance loss |
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| Insulation Resistance | Connectors provide greater than 5,000 Megohms at 500 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 |