Current leakage: < 10 fA （漏电精度高）
Frequency: > 150 MHz （测试频率高）
Capacitance (Guarded): < 10 fF
Impedance: 50 Ohm
Power Handling: > 125 Watts @ 18-21 Deg. C
Voltage Rating: > 250 Volts RMS @ sea level
