00 mm dia, Length 20 mm, Diameter 5 mm, Equivalent Brand and Series Bussmann S501, Equivalent Series 216, GDA, GSD, S501, Body Material Ceramic, Compatible Fuse Block Series 1A3399, H15, HHT, HTB, HTC-15M, Cap Diameter 5 1/5 in.1 A, 250V AC, Not Rated, Nonindicating, Fast Acting, Body Style Cylindrical, Interrupt Rating 1.00 mm L x 5.