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What is the difference between self-healing fuse PTC and over-current protection devices such as ordinary fuses?

The biggest difference between PTC and ordinary fuse is its self-recovery characteristics, both can provide over-current protection, but once the ordinary fuse is blown, it must be replaced to ensure the normal operation of the line; while PTC has self-recovery characteristics, can provide many times Stream protection. PTC and ceramic resettable fuses are both resettable fuses, the main difference lies in their initial resistance, response time and size. In which case to use PTC, ordinary fuse, or ceramic self-recovery fuse, it should be considered according to the actual circuit protection solution and the customer's demand point.
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