The SMP100LC-8 is a surface mount thyristor from STMicroelectronics with a breakover voltage of 15V and peak pulse current rating of 100A. It comes in a DO-214AA SMB package.
Bourns TISP61089ADR-S is a dual forward-conducting P-gate thyristor rated for 64V breakover and 30A peak pulse current (10/1000µs) in an 8-SOIC package.
SMP100LC-35 is a surface-mount thyristor from STMicroelectronics rated for 35V breakover voltage and 400A peak pulse current in a DO-214AA (SMB) package.