1, strip Filiform.
Early original type fuse, directly with screw lock, used in various sizes of old switch, socket.
2, Flake (die-like).
Easier to use than old-fashioned filaments.
3, glass tube-like.
There are several different sizes that are common in electronic products.6.3 x mm (diameter x length). 5 x mm 4, Ceramic tube.
There are several different shapes and sizes to avoid glass bursting.
5, plastic sheet metal-like pin: Car fuse.
6, surface and then component (SMD) type.
7, cylinder-shaped, plug-in: Directly welded to the circuit board, for the inside of the product.