SMB Fakra Plug for RF Harness Applications
RF Performance and Contact Construction
Rated for DC to 6 GHz at 50 Ohm impedance, this plug suits telematics, antenna feeds, and infotainment modules where the signal stays under that ceiling. Dielectric is PTFE, which holds the impedance tight through temperature swings and doesn't absorb moisture.
Body and Environmental Sealing
Zinc die cast body with tin finish — the tin layer is a corrosion barrier, not a cosmetic coat. The housing color is blue, which is the standard identifier for a Code Z Fakra variant; that keying code prevents cross-mating with other Fakra colors in a multi-connector harness. Shield termination is solder, so the braid or foil drain wire gets a solid 360° bond to the shell — no pigtail, no ground loop.
The single-port body takes up one PCB footprint — board layout engineers should match the keep-out to the Fakra standard pad pattern for the Code Z key. The locking ramp adds a mechanical retention that the solder joints alone don't provide; it's the primary strain relief in the mated pair.