Fuse with carbon fiber fusible element

An expulsion type fuse comprising:

• a body;
• a first conductive terminal coupled with a first end of the body;
• a second conductive terminal coupled with a second end of the body, wherein the body, the first conductive terminal, and the second conductive terminal define an exterior of the fuse;
• a fusible element including carbon fiber, the fusible element being disposed on a conductive path between the first conductive terminal and the second conductive terminal, and being configured to break when a current through the fusible element exceeds a predetermined current;
• and
• a spring that applies tension to the fusible element,
• wherein the carbon fiber included in the fusible element is a plurality of carbon fiber strands including a plurality of inner carbon fiber strands and a plurality of outer carbon fiber strands,
• wherein a first portion of the fusible element includes the inner carbon fiber strands and the outer carbon fiber strands and the outer carbon fiber strands surround the inner carbon fiber strands,
• wherein a second portion of the fusible element includes the inner carbon fiber strands and does not include the outer carbon fiber strands, and
• wherein a cross-sectional area of the second portion is less than a cross-sectional area of the first portion.