Provided is a fusible link unit (electrical component unit) including a fusible link (electrical component), a battery terminal fixed to an electrode post (electrode) of a battery, and a support member formed as a different body from the battery terminal and fixed to the battery, the support member supporting the fusible link (electrical component), in which the fusible link (electrical component) includes a main link body (main electrical component body) and a power supply terminal made of conductive metal to be exposed from the main link body (main electrical component body) and electrically connected to the electrode post (electrode) through the battery terminal, and the support member supports the main link body (main electrical component body) such that the main link body extends in an orthogonal direction substantially orthogonal to an installation surface portion.