KF5N50FSA KF5N50FSA-U/HSF KF5N50FSA-U/PS KF5N50FSA-U/PSF KF5N50FS-U/H KF5N50FS-U/P KF5N50FS-U/P(500V/5A) KF5N50FS-U/P，KF5N50FS KF5N50FS-U/PF KF5N50F-U/P