38999 Style Hermetic Connectors

Hermetic 38999 Circular Connector


Our 38999 mateable circular DC connectors combines Kryoflex® ceramic-to-metal sealing technology with ultra light-weight materials to create truly hermetic connectors. Using the light-weight aluminum housings will create a connector that is up to 60% lighter than stainless steel without sacrificing reliability. These DC connectors can be produced for both laser-weld and solder-in applications. Our hermetically-sealed 38999 mateable circular connectors are fully compliant with the interface requirements of MIL-DTL-38999. PA&E now also offers this style of connector with integrated EMI filters. These filtered connectors are custom configured to meet a range of EMI filter performance parameters. Connectors using C- and L-section filters can support 5-15 amps, working voltage of 50- 400 VDC with a minimum insertion loss of between 2 and 70dB, depending on configuration. Connectors using Pi-section filters support 10 amps and a working voltage of 50-300 VDC with a minimum insertion loss of between 2 and 70dB, depending on configuration.

Note: PA&E 38999 mateable connectors are not QPL (Qualified Parts List).

38999 Format Connector Specifications and Testing Configuration

Performance Configurations 38999 Format Connectors
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 Per MIL-DTL-38999
Number of Contacts Per MIL-DTL-38999
Optional Solder Cups Accepts 24 to 30 AWG solid/stranded wire
Performance Leak Rate Less than 1×10-9 cc/sec Helium at 1 atmospheric differential pressure
Insulation Resistance Connectors provide greater than 5,000 Megohms at 500 VDC when tested in IAW MIL-STD-1344, Method 3003
Dielectric Withstanding Voltsage 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

Download the 38999 Mateable Connector Information Sheet (PDF)