Twinaxial contacts have a minimum insulation resistance of 106 mega ohms. Dielectric withstanding voltage is 600 VRMS between center and intermediate contacts, and 600 VRMS between intermediate and outer contacts. Contact resistance for the center contact is =/<6.5 milliohms; intermediate contact is =<3.5 milliohms. VSWR is approximately 1.1:1 @ 100 MHz. Insertion loss is 0.0044 dB @ 0.2 GHz. All terminations are solder.