The TPSMB91A-L from Littelfuse is a Power Diode with Forward Voltage 3.5 V, Reverse Current 1.0 µA, Reverse Voltage 77.80 V, Non-Repetitive Peak Forward Current 100 A, Peak Reverse Voltage 77.80 V. Tags: Surface Mount. More details for TPSMB91A-L can be seen below.