RF Interconnect for Tight Spaces — MMCX Jack in the MicroMate Line
This surface-mount jack handles signals up to 6 GHz, with the snap-on fastening giving a positive mechanical lock without the nut-and-ferrule hassle of an SMA. The gold-plated Beryllium Copper body and gold-plated centre contact keep contact resistance low across 500 mating cycles, which matters when the connector lives on a production test board or a field-swappable radio module.
What the 50 Ohm / 6 GHz Rating Means for Signal Integrity
At 6 GHz, the connector's geometry and the LCP dielectric maintain that impedance across the interface; the snap-on mating keeps the centre contact alignment tight, so the return loss stays above 20 dB through the band. For a Wi-Fi 6E or 5G small-cell feed, this jack lands in the right impedance and frequency window.
SMT Termination and Board Layout Considerations
The Beryllium Copper centre contact material gives spring retention through reflow without relaxing, and the LCP housing handles the 260 °C peak without warping. Layout tip: keep the ground plane cutout under the signal pad tight to maintain 50 Ohm through the launch.