When using a chip fuse, if you don’t know the correct way to use it, you can directly connect the chip fuse to the circuit or replace it directly. This can easily cause the wrong wiring or other errors to cause the fuse to be too late to blow when the circuit is overloaded. Incoming circuits and products are easily burned by overload current. How to use SMD fuse correctly?
SMD fuse can be divided into two types: one-time and recoverable according to its service life. After the disposable fuse is used in the circuit, if the circuit is overloaded and blown, it can no longer be used and must be replaced. If the self-recovery fuse is overloaded after it is connected to the circuit, the fuse will automatically change its structure to reduce or block the current. After a period of time, the fuse will automatically restore the original and connect the circuit.

When connecting the chip fuse in the circuit, you need to pay attention. Do not connect the fuse to the neutral wire or the ground wire by mistake. The correct way is to connect it to the live wire. In this way, if the circuit is overloaded, the fuse can be timely Fuse itself to protect the safety of the circuit. If it is connected to the neutral wire or the ground wire, even if the fuse can blow itself in time, it will also cause the voltage of the positive and negative poles to pass through the live wire, which will also cause the circuit to burn out, so the fuse is connected to the circuit The best order in is the live wire, the neutral wire, and the ground wire at the end.

Generally, the fuse is connected in series in the circuit. If the fuse is connected in parallel in the circuit, the current cannot be disconnected in time when the circuit is abnormal. If you want to protect multiple circuits with overload, then It is enough to connect multiple fuses in series in the circuit at the same time.