2.4mm Compression-Mount Jack for 50 GHz Signal Paths
The Samtec 240-J-P-EP-ST-CMM-1 is a 2.4mm (APC-2.4, OS-50) female jack from the Samtec 240 Series, designed for controlled 50 Ohm impedance signal paths from DC through 50 GHz. This is a precision microwave interconnect — the 2.4mm interface is the standard for vector network analyzer (VNA) test ports and high-frequency instrumentation, where the connector's bandwidth directly determines the measurement floor. The compression-style contact termination eliminates solder from the RF launch, preserving the impedance profile through the board transition.
What the 50 GHz and 500-Cycle Ratings Mean for Your Test Bench
The 50 GHz maximum frequency is the connector's usable bandwidth — at this interface, the 2.4mm geometry supports a clean TEM mode well beyond 40 GHz, where an SMA or 3.5mm connector would begin to exhibit higher-order mode resonances. The compression termination is a solderless, rework-friendly attachment: the center pin is pressed onto a PCB launch pad, and the flange is screwed down. This avoids the thermal stress and impedance perturbation of a soldered center pin, which matters when every 0.1 dB of insertion loss repeatability counts.
Construction and Environmental Reach
The body is machined stainless steel with a silver finish, providing corrosion resistance and a stable ground reference. The threaded fastening and flange mounting give a vibration-resistant panel attachment; the shield is terminated via screw, which ties the connector body to chassis ground with a low-inductance path.