The 1N5623 from Semtech is a Space Qualified Diode with Forward Current 2.0 A, Forward Voltage 1.2 to 1.6 V, Reverse Current 0.5 to 55 uA, Reverse Voltage 1000 V, Repetitive Peak Reverse Voltage 1000 V. Tags: Through Hole. More details for 1N5623 can be seen below.