1812L260SLPR

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PTC Resettable Fuses

PTC (Positive Temperature Coefficient) resettable fuses are electronic protection devices used to protect home appliances, automotive systems, and other electronic devices from over-current and short-circuits. They are compatible with a wide range of voltages, including 1812L260SLPR, which are rated for 20V and 40V.

1812L260SLPR PTC Resettable Fuse

A1812L260SLPR PTC resettable fuse is a polymeric Positive Temperature Coefficient fuse used to protect electronic circuits from overcurrents and short circuits. It has an open-circuit voltage of 20V and a rated current of 6A.

Application Field

1812L260SLPR PTC resettable fuses are mainly used for overcurrent and short-circuit protection of home appliances, automotive systems, and other electronic devices. In addition, they can also be used for the protection of electrical circuits from low or high temperature, misuse of equipment operation, and transient over voltages.

Working Principle

The working principle of the 1812L260SLPR PTC resettable fuse is based on the positive temperature coefficient of the different materials that comprise the fuse. When the current flows through the fuse element, it begins to heat up. If the current exceeds the maximum rated current, the PTC resettable fuse will enter a maximal temperature state and the thermally sensitive fuse link will open, thus preventing further current from flowing.

Once the current environment has returned to normal, the PTC fuse will begin to cool down. As it begins to cool, the fuse link will shrink back to its original position, allowing current to flow again. This resetting process can typically take between 4-30 seconds.

Conclusion

1812L260SLPR PTC resettable fuses are an essential component of any electronics system, providing protection from over-currents and short circuits. The working principle is based on the thermally sensitive fuse link opening up when the current flows beyond its rated level, thus protecting from any further damage. Once the current environment returns to normal, the fuse will reset itself and return to its normal state, allowing the current to flow again.

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