The BZX79C3V9-T50A from onsemi is a Power Diode with Forward Current 0.2 A, Forward Voltage 1.2 V, Reverse Current 10 uA, Reverse Voltage 1 V, Repetitive Peak Reverse Voltage 1 V. Tags: Through Hole. More details for BZX79C3V9-T50A can be seen below.