The 3SMAJ5954B-TP from Micro Commercial Components is a Power Diode with Forward Current 0.2 A, Forward Voltage 1.5 V, Reverse Current 1 uA, Reverse Voltage 121.6 V, Repetitive Peak Reverse Voltage 121.6 V. Tags: Surface Mount. More details for 3SMAJ5954B-TP can be seen below.