The SMV1283 Series from Skyworks Solutions is a Varactor Diode with Capacitance 9.13 pF@Vr=1 V, 3.64 pF@Vr=4 V, 1.17 pF@Vr=10 V, 0.815 pF@ Vr=30 V, 0.589 pF@Vr=20 V, Forward Continous Currenrt 20 mA, Reverse Voltage 28 V@Ir = 10 µA (V) Min., Operating Temperature -55 to 125 Degree C, Resistance 2.4 Ohms. Tags: Surface Mount. More details for SMV1283 Series can be seen below.