The 1N4944 from Semtech is a Power Diode with Forward Current 1.0 to 2.0 A, Forward Voltage 1.2 V, Reverse Current 0.5 to 25 uA, Reverse Voltage 400 V, Repetitive Peak Reverse Voltage 400 V. Tags: Through Hole. More details for 1N4944 can be seen below.