The SMV1139-011LF from Skyworks Solutions is a Varactor Diode with Capacitance 5.4 pF@Vr=1 V, Forward Continous Currenrt 20 mA, Reverse Voltage 12 V@Ir = 10 µA (V) Min., Resistance 0.6 Ohms. Tags: Surface Mount. More details for SMV1139-011LF can be seen below.