TechnologiesThe SB540G-Z21D-B is a Schottky Barrier Diode (SBD) manufactured by Unisonic Technologies in a DO-201AD package according to the RoHS standards. It provides fast switching with low forward voltage drop for a range of applications. It has a blocking voltage of 540V, with a maximum forward current rating of 1 Amp. Its reverse voltage breakdown is 30V, and its junction temperature range is -55 to 150°C. The terminal type is axial lead, with both a cathode and an anode marking. The diode is suitable for high speed, low power applications.