The MGV125-25-P55 from Cobham Metelics is a Varactor Diode with Capacitance 0.13 pF, Capacitance Ratio 3.6 to 9.3, Forward Continous Currenrt 100 mA, Power Dissipation 100 mW, Q factor 3000. Tags: Surface Mount, Ceramic. More details for MGV125-25-P55 can be seen below.