Model 651-031-063 is a 50 ohm electromechanical programmable attenuator designed for variable attenuation applications. The frequency range is DC to 2.2 GHz and switching speed is 10 milliseconds. Attenuation range is 0 to 63 dB in 1 dB steps with +/-0.5 dB or 2% of programmed attenuation accuracy. Insertion loss is 3 dB nominal at 2.2 GHz while VSWR is 1.40:1 maximum. Input power is 1W average with supply voltage +12 Vdc @ 30mA nominal per section. The RF connectors are SMA female and the control connectors are solder terminals.