RF Interconnect — SMT EFI Jack for Board-Level Coax
The Amphenol RF 920-502J-52P is a 50 Ohm HD-EFI jack (female socket) rated to 6 GHz with a 0.1 dB insertion loss — a surface-mount RF interconnect for board-level coaxial runs where the signal path needs a controlled impedance launch. It belongs to the HD-EFI series, a push-pull fastening EFI-style connector family designed for quick mate-and-disconnect without a coupling nut. The gold-plated center contact and brass body with nickel finish suit environments where corrosion resistance and repeated reconnection matter, though the 50 mating cycles limit it to moderate-duty field service rather than daily unmating.
Signal Path — 50 Ohm Through 6 GHz
The 6 GHz max frequency covers common wireless bands — Wi-Fi, Bluetooth, cellular — and the 0.1 dB insertion loss keeps signal attenuation low through the interconnect.
Mounting and Termination — SMT Reflow Ready
No through-hole posts, so the board-side footprint is all on the top layer.
Mechanical — Push-Pull with Limited Detent
The push-pull fastening means the jack mates by pushing the plug in and unmates by pulling straight out — no threads, no torque tool. A limited detent gives tactile feedback when the pair is fully seated. The 50 mating cycles per the spec mean this connector is built for occasional field reconnection, not daily plug-unplug cycles. If your application needs more than 50 mates, look at a threaded or bayonet RF connector instead.