... GHzVoltage RatingRG174, 188, 316: 335 volts rms maxRG178, 196: 250 volts rms maxDielectric Withstanding VoltageRG174, 188, 316: ... 750 volts rms maxRG178, 196: 500 volts rms maxContact Resistancecenter contact: 6.0 milliohms ... threaded couplingCable RetentionRG174, 188, 316: 20 lbs minRG178, 196: 6 lbs minDurability500 matingsCoupling Nut Retention40 lbs min SMC ...