The 431-116J-52S is a 4.3/10 4-Hole Flange Jack with Solder Cup and extended body, designed for low PIM RF applications. It features a 50 Ohm nominal impedance with excellent VSWR performance up to 6 GHz (0.05 max. DC to 4 GHz, 0.025 max. 4 to 6 GHz), and achieves low passive intermodulation of -166 dBc at 2×20 W and -160 dBc at 2×40 W. The connector is smaller and up to 40% lighter than 7/16 connectors, with separate electrical and mechanical contacts that yield superior PIM performance even when hand-mated. It operates over a temperature range of -55°C to +90°C and is IP-67 compliant in the unmated condition. This connector is ideal for distributed antenna systems, base stations, wireless infrastructure, and telecom applications requiring low PIM and low attenuation.