IPI110N20N3
4n33  tlp190b
switching mosfet 726-IPP075N15N3G
726-IPI110N20N3G
IRFZ48V

IRFP4668PBF Mooly, good


http://www.mouser.com/ProductDetail/Infineon-Technologies/IPB200N15N3-G/?qs=mzcOS1kGbgc6M2B0szy7NQ%3D%3D

http://www.diyaudio.com/forums/solid-state/191449-output-relays-29.html
#288

http://www.diyaudio.com/forums/solid-state/191449-output-relays-9.html
http://www.diyaudio.com/forums/solid-state/191449-output-relays-17.html


http://www.diyaudio.com/forums/solid-state/237730-solid-state-speaker-protection-system-interest-check-4.html

http://www.diyaudio.com/forums/solid-state/196973-tgm5-all-bjt-simple-symmetric-amplifier-25.html#post2936405

dc protect:
http://www.diyaudio.com/forums/chip-amps/246732-tda7293-power-supply-voltage-5.html