Abstract:
Disclosed is a complex protection device including a substrate, fuse terminals provided on the substrate, first resistive terminals provided on the substrate so as to be separated from the fuse terminals, second resistive terminals provided on the substrate opposite to the first resistive terminals across the fuse terminals, a fusible element connected to the fuse terminals, a first surface-mounted resistive element connected to the first resistive terminals, a second surface-mounted resistive element connected to the second resistive terminals, at least one printed resistive element connected to at least one of the first resistive terminals and the second resistive terminals and connected to at least one of the first surface-mounted resistive element and the second surface-mounted resistive element, and a switching element controlling flow of current to the first and second surface-mounted resistive elements and the at least one printed resistive element if overvoltage is applied.
Abstract:
Disclosed is a complex protection device in which a circuit and circuit elements installed on the circuit may be protected from overcurrent and overvoltage and cohesion of a fusible element is induced by a circular or oval fusing induction part and thus fusing efficiency may be improved.
Abstract:
A high current terminal for electronic circuit protection includes: a first sectional terminal into which a current flows from the outside; a second sectional terminal transmitting a current flowing inside through the first terminal to the outside; and an element coupled between the first sectional terminal and the second sectional terminal, wherein the element disconnects the first sectional terminal and the second sectional terminal by melting when a current exceeding a preset condition flows inside through the first sectional terminal, and is formed to have a thickness that is equal to or less than thicknesses of the first sectional terminal and the second sectional terminal.
Abstract:
Provided is a complex protection device which can protect a circuit and circuit elements installed at the circuit against overcurrent and overvoltage. Heat is generated from thin film type printed resistors installed at opposite sides of a fusible element or directly beneath the fusible element and, as such, it is possible to improve thermal characteristics of the product, to design an ultraminiature product, and to simplify manufacture processes.