The 919-422J-71P12G from Amphenol RF is a RF Connector with Frequency DC to 12 GHz, Operating Temperature -65 to 165 Degree C, Return Loss 15 to 20 dB, Voltage Rating 500 Vrms(Dielectric Withstanding Voltage), VSWR 1.22:1, 1.43:1. Tags: Standard. More details for 919-422J-71P12G can be seen below.