Surface mount fuse with solder link and de-wetting substrate

    公开(公告)号:US11437212B1

    公开(公告)日:2022-09-06

    申请号:US17395749

    申请日:2021-08-06

    申请人: Littelfuse, Inc.

    IPC分类号: H01H85/041 H01H69/02

    摘要: A surface mount device chip fuse including a dielectric substrate, electrically conductive first and second upper terminals disposed on a top surface of the dielectric substrate and defining a gap therebetween, a fusible element formed of solder disposed on the top surface of the dielectric substrate, within the gap, bridging the first and second upper terminals, and electrically conductive first and second lower terminals disposed on a bottom surface of the dielectric substrate and electrically connected to the first and second upper terminals, respectively, wherein a material of the dielectric substrate exhibits a de-wetting characteristic relative to the solder from which the fusible element is formed.