The SMV1801-079LF from Skyworks Solutions is a Varactor Diode with Capacitance 58 pF@Vr=1 V, 26.9 pF@Vr=4 V, 8 pF@Vr=10 V, 3.2 pF@Vr=20 V, Forward Continous Currenrt 20 mA, Reverse Voltage 32 V@Ir = 10 µA (V) Min., Operating Temperature -55 to 125 Degree C, Resistance 1.2 Ohms. Tags: Surface Mount. More details for SMV1801-079LF can be seen below.