KF5N50D KF5N50 KF5N50DR KF5N50D-RTF/P KF5N50DS KF5N50DS KF5N50 KF5N50DS-RTF/H KF5N50DS-RTF/HS KF5N50DS-RTF/P KF5N50DS-RTK/P(4.3A/500V) KF5N50DS-VB