The QCI-FB-P51-01 from Qualwave is a RF Connector with Frequency DC to 6 GHz, Operating Temperature -55 to 165 Degree C, Pin Diameter Dia. 0.51 mm, Voltage Rating 1000 VDC, VSWR 1.20:1. Tags: Standard. More details for QCI-FB-P51-01 can be seen below.