2.4mm Jack for 50 GHz Signal Paths
The Samtec 240-J-P-EP-ST-CMM-2 is a 2.4mm (APC-2.4, OS-50) female jack from the Series 240 line of precision RF connectors. It is specified for 50 Ohm controlled impedance and rated to 50 GHz maximum frequency, placing it in the upper band of production microwave interconnects — beyond what SMA or 2.92mm (K) connectors support. The compression-mount termination and surface-mount flange attach it to the board without solder on the signal path, preserving the impedance through the launch. The stainless steel body and threaded fastening give it the mechanical rigidity needed for test fixtures, VNA calibration kits, and aerospace instrumentation where the connector sees repeated connects.
50 GHz Bandwidth and 500-Cycle Durability
Rated to 50 GHz with 50 Ohm impedance, this jack covers the millimeter-wave bands used in 5G NR FR2 test heads, satellite downconverters, and radar module characterization. The 500 mating cycles reflect the gold-on-beryllium-copper contact design that resists wear across frequent reconnections. The compression termination eliminates solder from the RF path, which avoids the impedance discontinuity a solder fillet introduces at millimeter-wave frequencies. The flange mount with screw shield termination provides a solid ground reference to the board — critical for keeping the return loss clean through the transition.
The tray packaging and mounting hardware features are as listed; the dielectric is polyetherimide (PEI), which holds its dielectric constant across the operating temperature range.