BUY SM8S17A https://www.utsource.net/itm/p/1715184.html
Surface Mount Automotive Transient Voltage Suppressors
Package: DO-218 (GI) Description: SM8S17A is a surface mount, 8A, 400V, sensitive gate, thyristor (SCR) in a DO-218 package. Features: Low gate trigger current High surge current capability Low thermal resistance High temperature operation High surge current capability Low on-state voltage High commutation capability Applications: Motor control Lighting control Power switching Heating control AC/DC power conversion Industrial automation (For reference only)