US 11,923,162 B2
Step-terminated SMD fuse
Roel Santos Retardo, Batangas (PH); Kent Harvey Mercado Berenguel, Batangas (PH); and P-A-Homer II Dela Torre, Laguna (PH)
Assigned to LITTELFUSE, INC., Chicago, IL (US)
Filed by Littelfuse, Inc., Chicago, IL (US)
Filed on Jun. 22, 2022, as Appl. No. 17/846,796.
Prior Publication US 2023/0420209 A1, Dec. 28, 2023
Int. Cl. H01H 85/143 (2006.01); H01H 85/055 (2006.01); H01H 85/041 (2006.01)
CPC H01H 85/055 (2013.01) [H01H 85/143 (2013.01); H01H 2085/0414 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A fuse comprising:
a stack comprising a first plurality of layers and a second plurality of layers arranged to form steps, the stack further comprising:
an upper stack comprising the first plurality of layers, wherein the first plurality of layers are of a first dimension; and
a lower stack comprising the second plurality of layers, wherein the second plurality of layers are of a second dimension, the second dimension being larger than the first dimension;
a flattened wire disposed between the upper stack and the lower stack; and
a terminal coupled to the flattened wire, the terminal comprising a plurality of surfaces to cover the steps at one end of the stack, the plurality of surfaces comprising:
a pair of surfaces covering, and in direct contact with, a first step of the stack; and
a triad of surfaces covering, and in direct contact with, a second step of the stack;
wherein the pair of surfaces extends from a top of the triad of surfaces.