The SMP-JHD2-L from Mechanc is a RF Connector with Frequency DC to 40 GHz, Operating Temperature -55 to 165 Degree C, Pin Diameter 0.7 mm, Voltage Rating 500 Vrms (Dielectric Withstanding Voltage), VSWR 1.30:1. Tags: Standard. More details for SMP-JHD2-L can be seen below.