R3-77 (PCB board installation)
Automotive fuse holders For current-sensitive components, its function is to judge the overcurrent. When the fault overcurrent is passed, the fuse is the protection function that the fuse should play. For non-faults like the transient pulse When the current is current, the fuse should be able to withstand enough times to ensure the normal use of the whole machine.
The current generally does not exceed the start-up pulse during normal use, and the number of energization times will not exceed 10 times. The fuse holder of the car should not be operated, and once an abnormal blow occurs, there is definitely a problem. If the cause of the abnormal blow is not detected in time, only Simply replacing the fuse or increasing the fuse capacity is not reassuring.