Model 651-030-020 is a voltage controlled programmable attenuator designed for use in scientific instruments. The frequency range is DC – 1500 MHz. Attenuation range is 0-20 dB in a 20 dB step with ± 0.6 dB attenuation accuracy. Insertion loss is 0.6 dB nominal while VSWR is 1.20:1 maximum. Input power is 1 watt average with supply voltage +15 Vdc @ 30 mA nominal. The RF connectors are SMA female, and the control solder terminal features a feed-thru capacitor to prevent leakage. Other attenuation values and RF connector types are available.