BUY STTH8R03D https://www.utsource.net/itm/p/5219305.html
300V HYPERFAST RECTIFIER
Description: STTH8R03D is a high voltage rectifier diode with a TO220-2 package. Features: - High surge current capability - Low forward voltage drop - High reliability - Low reverse leakage current Applications: - Switch mode power supplies - DC/DC converters - Uninterruptible power supplies - Battery chargers - Automotive electronics (For reference only)