Our 38999 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. PacAero 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: PacAero 38999 mateable connectors are not QPL (Qualified Parts List).
| Performance Configurations | 38999 Format Connectors |
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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 |
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| Shell Finish Options | Passivated, Nickel/Gold Plated or Chromate Conversion Coated as applicable |
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| Contact Finish | Nickel/Gold Plating |
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| Interface | Per MIL-DTL-38999 |
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| Number of Contacts | Per MIL-DTL-38999 |
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| Optional Solder Cups | Accepts 24 to 30 AWG solid/stranded wire |
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| Performance | Leak Rate | Less than 1×10-9 cc/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 |
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| Dielectric Withstanding Voltsage | Connectors exhibit no evidence of breakdown or flashover when tested in IAW MIL-STD-1344, Method 3003 |
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| Corrosion Resistance | Connectors meet salt spray test in IAW MIL-STD-1344, Method 3003 |
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| Operating Temperature | -65°C to 200°C |
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