GSFC S-311-P-4/05 and S-311-P-10 Combination D-Subminiature Connectors  APPLICATION NOTES

1. For S-311-P-10 connectors, normal mounting hole diameter is 0.120".  To specify a larger mounting hole diameter of 0.150", replace the "-12" in the part number with "-15".  See part number explanation for details.
2. Hardware such as screwlocks, jackscrews, and jackposts are required to properly secure mated connector pairs and must be provided separately. Non-magnetic hardware is recommended to maintain controlled residual magnetism.
3. Connectors satisfy GSFC outgassing requirements of 1% Total Mass Loss (TML) and 0.1% Collected Volatile Condensable Material (CVCM).
4. Coaxial contacts should be used for signals of 1 GHz frequency or less. Use MIL-C-39012 connectors for higher frequencies.
5. Some suppliers use a nylon insulator material in their high voltage contacts. The nylon insulator may not meet program outgassing limits.
6. Coaxial, high voltage and crimp standard power contacts must be supplied separately. Coaxial and high voltage contact part numbers are procured per GSFC S-311-P-4/06. For crimp type standard power contacts (used with S-311-P-4/05 only), procure P/N G10S1 for socket contacts and G10P1 for pin contacts per GSFC specification S-311-P-4/10.
7. For S-311-P-10 connectors "C" level residual magnetism (20 Gamma) is available in lieu of "B" level (200 Gamma).