摘要:
A thermal fuse includes a first insulation film having a pair of metal terminals mounted thereto, a fusible alloy located over the first insulation film and connected between respective ends of the metal terminals, a second insulation film provided over the fusible alloy and bonded to the first insulation film as to provide a space between the first and second insulation films. The fusible alloy includes an Sn—Bi—In alloy containing 20 to 39.5 wt. % of tin, 11.5 to 31 wt. % of bismuth, and 49 to 68.5 wt. % of indium. The fusible alloy does not release lead or cadmium even after being disposed of since it contains no lead and no cadmium.
摘要:
A thermal fuse includes a first insulating film to which a pair of metal terminals are attached, a fusible alloy located above the first insulating film and connected between the leading end portions of the pair of metal terminals, and a second insulating film located above the fusible alloy and attached to the first insulating film so as to define a space with the first insulating film. The fusible alloy includes an Sn—Bi—In—Zn alloy containing 0.5 to 15 weight % of Bi, 45 to 55 weight % of In and 0.5 to 5 weight % of Zn with the balance being Sn.
摘要:
A thermal fuse comprises: a first insulating film to which a pair of metal terminals are attached; a fusible alloy located above the first insulating film and connected between the leading end portions of the pair of metal terminals; and a second insulating film located above the fusible alloy and attached to the first insulating film so as to define a space with the first insulating film. The fusible alloy includes an Sn—Bi—In—Zn alloy containing 0.5 to 15 weight % of Bi, 45 to 55 weight % of In and 0.5 to 5 weight % of Zn with the balance being Sn.
摘要:
A fuse has a pair of lead terminals disposed on a substrate, an intermediate layers for welding formed on the surface of at least one of the lead terminals, and a fuse element. The fuse element is welded to the pair of lead terminals through the intermediate layer so as to span the same. Further, the intermediate layer is formed on at least one of the lead terminals except a face thereof opposing each other. Owing to this configuration, after the fuse has melted down, the melted fuse element is prevented from being spread out into the space between the opposing faces of the lead terminals and insulation therebetween is secured.
摘要:
A fuse has a pair of lead terminals disposed on a substrate, an intermediate layers for welding formed on the surface of at least one of the lead terminals, and a fuse element. The fuse element is welded to the pair of lead terminals through the intermediate layer so as to span the same. Further, the intermediate layer is formed on at least one of the lead terminals except a face thereof opposing each other. Owing to this configuration, after the fuse has melted down, the melted fuse element is prevented from being spread out into the space between the opposing faces of the lead terminals and insulation therebetween is secured.