KF5N50F KF5N50F,KF5N50,KF5N50FS-U/P KF5N50FS KF5N50FS 2SK3563 KF5N50FS KF5N50 KF5N50FS,KF5N50FS-U/P KF5N50FSA KF5N50FSA-U/HSF KF5N50FSA-U/PS KF5N50FSA-U/PSF