0413-216-2005 - Keying Pin - Size 20

Deutsch Keying Pins

Keying pins are solid plastic rods used to prevent mis-mating of like connectors in close proximity. Applicable Deutsch product lines include HD10, HD30, HDP20, DT, and DTM Series. Keying pins are inserted into the retention fingers of an empty socket cavity. Once installed, the keying pin blocks a mating contact pin from being inserted. The contact pin will be blocked before the coupling device mates the connectors, preventing the mis-mating of like connectors. Proper usage requires that the corresponding mating pin be omitted and a sealing plug is inserted in the rear cavity of the mating connector. Individual applications will vary, and testing should be done to determine the best pattern arrangement to prevent improper connector mating.

Sealing Plugs Vs. Keying Pins

Sealing Plugs: A sealing plug is a component that is used to seal off unused cavities in a connector to prevent the entry of moisture, dirt, or other contaminants. Sealing plugs are often used in connectors that have multiple cavities that are not all in use, such as in automotive or industrial applications.

Keying Pins: A keying pin is a component that is used to ensure that a connector is mated correctly with its corresponding connector. Keying pins are used to prevent the accidental mating of incompatible connectors or to ensure that connectors are properly oriented when they are connected. They typically have a unique shape or pattern that matches the corresponding connector and can only be inserted in a specific orientation.