Murata has begun mass production of the SWL series MM8330-2600RJ5 and MM8330-2600RK20, RF / microwave coaxial connectors with a switch for circuit measurement. Measuring 1.0 mm × 1.0 mm × 0.55 mm, the connectors reduce PCB mounting area by approximately 40% compared with Murata’s previous SWJ series. Murata identifies them as the world’s smallest based on its research as of October 28, 2026.
As wireless devices incorporate more functionality, rising component counts are placing increasing pressure on limited PCB space. RF test connectors need mounting area for the connector and clearance around it for probe access during circuit measurement.
Murata says its proprietary structure combines RF and mechanical design technologies to miniaturize the connectors while maintaining low RF transmission loss and mechanical robustness. The previous SWJ series measures 1.4 mm × 1.2 mm × 0.65 mm. When used with a dedicated automatic or manual probe, the SWL series reduces the PCB footprint, including the keep-out area, by approximately 60% compared with the SWJ series.
The SWL series supports frequencies from DC to 15 GHz and has a nominal impedance of 50 Ω. The MM8330-2600RJ5 is supplied on reels of 5,000 pieces, while the MM8330-2600RK20 is supplied on reels of 20,000 pieces.
Dedicated probes for the connectors are scheduled to enter mass production in December 2026. Murata says it will continue developing smaller electronic components and solutions to make more effective use of limited PCB space, supporting higher-performance and more compact smartphones and wearable devices.
