The Amphenol RF 3FA1-NKSJ-C01W0 is a Fakra SMB housing — the plastic shell and keying body that holds the RF contact in an automotive antenna harness. It belongs to the Fakra family, the standardized connector system for vehicle antenna modules, GPS receivers, and telematics units. The housing carries Code K keying, identified by its Curry color, which prevents cross-mating with other Fakra codes (A through Z) in a multi-connector bundle.
Color and Keying — Why Code K Matters
The Curry color is not cosmetic — it is the visual and mechanical key for Fakra Code K. In a typical vehicle dashboard or roof module, multiple Fakra connectors (GPS, satellite radio, cellular, DAB) sit side by side. The color-coded housing and corresponding latch shape ensure the GPS cable cannot be plugged into the cellular port.
Compatibility and Contact Selection
This housing is designed for use with standard SMB Fakra female contacts. The housing does not include the center pin or ferrule — those are ordered as separate line items based on the cable type (typically RG-174, RG-316, or RTK cables). The tin-plated zinc body provides the ground path through the shield.