BUY 31DF6 https://www.utsource.net/itm/p/1715268.html
LOW POWER LOSS, HIGH EFFICIENCY
31DF6 is a 6A, 600V fast-recovery diode made by Sanken. It has a DO-201 package and is designed for use in high-frequency switching power supplies and other applications. Features: * Low forward voltage drop * High surge current capability * Low reverse leakage current * High-speed switching Applications: * Switching power supplies * Inverters * Motor control * Rectifiers * Free-wheeling diodes (For reference only)