Shenzhen Shunhai Technology is a focus on electronic components more than 20 years of the agent seller, is your trusted enterprise. Main PPTC,PPTC self-recovery fuse, can recover fuse manufacturers, such as plug-in type, strip shape, square, round and other self-recovery fuse, complete specifications. Brands are: SEA LAND, JINKE, Juding, Shuokai, Litt and other brands and other brands.
Since the recovery fuse the main volume: 0402060 3080 5120 6121 0181 2201 0201 8292 9, etc.
The main categories of self-recovery fuses are: patch self-recovery fuses, plug-in self-recovery fuses, low internal resistance self-recovery fuses, high temperature self-recovery fuses, high voltage self-recovery fuses, oil-proof self-recovery fuses, car gauge self-recovery fuses and so on.
The self-restoring fuse consists of a polymer matrix and carbon black particles that conduct electricity. Since the polymer self-fuses are conductors, an electric current will pass through them. When an overcurrent passes through the polymer's self-healing fuse, the heat generated (I2R) will cause it to expand. Thus the carbon black particles will separate, and the resistance of the polymer self-replicating fuse will rise. This will cause the polymer self-healing fuse to heat up faster and expand more, further increasing the resistance. When the temperature reaches 125°C, the resistance changes significantly, so that the current is significantly reduced. At this point, the small current flowing through the polymer self-reflow fuse is sufficient to keep it at this temperature and in a high resistance state. When the fault is cleared, the polymer self-fuses shrink back to their original shape to reconnect the carbon black particles, thereby reducing the resistance to a level that has a specified holding current.
