Power in p28 vdc at 100 ma max; noise immuni type 8 volts; switching speed 5 msec; isolation 40 db min; insertion loss 0.5 db max; vswr 1.25 max; impedance 50 ohm nom; rf power 100 watts cw max 500 watts peak; freq dc - 400 mhz; dimension 2.750 in. By 2.500 in. By 1.156 in.