0ZCJ0050FF2G Circuit Protection

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PTC Resettable Fuses 0ZCJ0050FF2G

PTC Resettable Fuses, or Polyfuse, is a type of fuse used in electronic circuits for protection against excess current, often in place of a traditional fuse. It is a type of fuse with a poly-fuse element which is designed to react positively to excessive current and enters a high-resistance state until the current is manually reset or it cools down, rather than burn out like a regular fuse. 0ZCJ0050FF2G is a specific type of Polyfuse

Application Field

0ZCJ0050FF2G is a surface mount PTC Resettable Fuse, and its features make it well-suited for high current, high-end current regulation in small or portable applications. It is ideal for consumer and other small professional applications such as computer and communications equipment, automotive, audio and video equipment, portable batteries, battery packs, and electronic toys. Its high performance and good protection make it suitable for many automotive and consumer applications, where reliable overcurrent protection is essential.

Working Principle

The 0ZCJ0050FF2G is a Polyfuse with two layers of thermally sensitive polymeric material. It acts like a strongly temperature-dependent resistor, which is connected in series with the circuit in which it is used. This component will act to reduce the current when subjected to excessive current flow, having a designed current limit at about 1.25A. When the current flow exceeds the set limit, the Polyfuse will heat up and enter a high-resistance state, voltage drop increases and current drops, thus protecting the circuit from excessive current. After the overcurrent situation has ended, the PTC Resettable Fuse will cool down and reset itself, ready to quickly provide overcurrent protection again.

Conclusion

The 0ZCJ0050FF2G is designed for small, portable consumer and automotive products and their application fields. It is a Polyfuse, which is a type of fuse with a polymeric material that is designed to react positively to excessive current and enter a high-resistance state until the current is manually reset or it cools down, thus it can provide reliable overcurrent protection. It is an ideal choice for many high current and high reliability applications since it is able to quickly provide protection again.

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