The TC-3520-NMH-X from Times Microwave Systems is a RF Connector with Frequency DC to 6 GHz, Connector Length 1.51 Inches, Operating Temperature -65 to 165 Degree C, Voltage Rating 1000 V(Dielectric Withstanding Voltage), VSWR 1.30:1, 1.35:1. More details for TC-3520-NMH-X can be seen below.