Abstract: A miniature electrical fuse designed for at least 60 volt circuit applications in printed circuit application features protection against housing explosion under fuse blowing conditions by means of arc barrier-forming shroud members formed by confronting rigid arc barrier walls of base and cover members between which end terminals of the fuse are sandwiched. The walls form arc barriers which closely confront or contact the fuse wire on all four sides thereof ahead of the points where the fuse wire ends are connected to the terminals. These points of connection are advantageously out of alignment with the rest of the fuse wire. The terminals preferably extend from the confronting ends of the base and cover members where projections from the cover bearing on the terminals secure the terminals in place and seal the openings thereat.

Abstract: A plug-in fuse assembly comprising a housing made of insulating material and includes upwardly extending side walls bridged by upwardly extending end walls, and a conductive plug-in fuse element secured in the housing. The conductive plug-in fuse element has parallel confronting terminals projecting downwardly from the bottom of the housing. The housing end and side walls uniquely have outermost vertical coplanar wall surfaces, preferably at the sides and top margins thereof, which are parallel to the housing sides involved and to the corresponding outermost vertical coplanar wall surfaces on the opposite end or side of the housing. The outermost vertical coplanar wall surfaces are adapted to engage the complementary outermost vertical wall surfaces of an identical plug-in fuse assembly placed with the identical end-to-end or side-by-side orientation besides it.

Abstract: A miniature fuse suitable for printed circuit applications and a manufacturing method therefor features preferably a generally rectangular elongated insulating body having a fuse element preferably diagonally disposed in a fuse cavity therein and terminals preferably insert molded therein and extending preferably from the opposite ends thereof. The cavity preferably opens onto opposite longitudinal sides of the body, but provision may be made to optionally close-off one of the cavity openings by a cover plate. The body is sealed by a sleeve which is preferably a semi-rigid expandable member but which could be a piece of expandable shrink tubing. Lay-in grooves preferably extend from the opposite ends of the cavity to conductive fuse attachment surfaces which are initially preferably bendable tabs located beyond the outer surface of the body to allow the fuse element to be conveniently attached or captured thereby during fuse assembly.