Mil-Aero, defense and space connectors, backshells and contacts

Our space-grade 38999 series of QPL circular connectors provides a reliable, quick mating solution and long-term performance in harsh environments. A range of mounting configurations and standard layouts is available as well as hermetic receptacle and bulkhead feedthrough versions. Connectors are based on MIL-DTL-38999 design and are often found on satellites, launchers and spacecraft.

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Overview Specifications Resources Support

Core features

Quick mating and reliable scoop-proof solution saves time in AIT
Extended performance in harsh environments compared to rectangular space grade series
From high-power to high-density layouts
Removable crimp contacts or PCB tails
Broad range of standard layouts to gather connection points, including high-density layouts
Hermetic receptacle and bulkhead feedthrough version available
ESCC 3401 and MIL-DTL-38999 class G qualified (QPL)
NATC intermateable

Specifications

Technical data

Operating Temperature from -65°C to +200°C / -85°F to +392°F
Sinusoidal vibration: 10-2000Hz, up to 50g
Shock: 75g, 11 milliseconds
Outgassing: TML< 1% ; CVCM < 0,1%

Electrical characteristics

Working voltage (sea level): up to 575 Vrms
Rated current: 5 to 80 A per line

Qualification

Series 1 bayonet QPL: MIL-DTL-38999 Class G MS27456, MS27466, MS27467, MS27468 and ESCC 3401/052, 3401/058
Series 2 bayonet low profile QPL: MIL-DTL-38999 Class G MS27473, MS27474, MS27497 and ESCC 3401/046, 3401/045
Series 3 screw coupling QPL: MIL-DTL-38999 Class G D38999/20, D38999/24, D38999/26 and ESCC 3401/056, 3401/057, 3401/070

Download Links

Catalogs

Eaton souriau space grade circular connector 38999 catalog - en us

(PDF 2 MB , 01/11/2024)

Product specification guides

Eaton souriau interconnect solutions space industry selector guide - en us

(PDF 7 MB , 01/04/2022)

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Space-grade 38999 series