For protection against overcurrent, we offer cartridge fuse with dimensions 5x20 mm in sizes from 100 mA to 6.3 A. Product Attributes Mounting Type Requires Holder Fuse Type Cartridge Current Rating (Amps) 500 mA Voltage Rating - AC 250 V Response Time Fast Blow Package / Case 5mm x 20mm Breaking Capacity @ Rated Voltage 1.5kA Color Light Gray Size / Dimension 0.197" Dia x 0.787" L (5.00mm x 20.00mm)