The 1N5406-E3/54 is a 3A, 600V standard recovery rectifier diode manufactured by Vishay. It features ultra fast recovery time, low reverse leakage, high forward surge current capability, and high junction temperature ratings. The diode is capable of a maximum repetitive reverse voltage of 600V and a continuous forward current of 3A. It is available in a DO-204AL (Axial-Lead) package, making it ideal for use in power supplies and converters.