Materials:

Center Contact: Gold Plated Beryllium Copper with Teflon insulation.
Resistor Terminator
Dielectric: PTFE

Ratings:

Operating Voltage: 335 VRMS Max.
Operating Temperature: -65ºC to +125ºC
Nominal Impedance: 50 Ohms
VSWR:
DC – 4 GHz :1.05:1 Max.
4 – 8 GHz :1.10:1 Max.
8 – 12 GHz :1.15:1 Max.
12 – 18 GHz :1.25:1 Max.
Frequency Range: DC to 18.0 GHz
Power: 1 Watt