Püschel Feinsicherungen Cartridge Fuses Micro fuse 623241 - Püschel Feinsicherungen FSSF1,6B, The Püschel Feinsicherungen FSSF1,6B micro fuse is a very quick acting cartridge glass fuse with dimensions of 5 mm x 20 mm, rated for 1.6 A and 250 V. Typically used in electronic circuits that require rapid response to overcurrent, it comes in packs of 10 pieces. Its quickblow feature makes it ideal for protecting sensitive components. Püschel FSSF16B Micro Fuse 1.6A 250V 5x20mm Very Quick Acting 10 Pieces