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PTC Resettable Fuses

PTC resettable fuses are electronic components that are used to protect circuits from overcurrent or short circuit conditions, and can be reset manually, or self-reset after the overcurrent or short-circuit condition is corrected or removed. The 0805L010YR is a PTC resettable fuse with a low current rating and a low power dissipation.

Application Field

These resettable fuses are used mostly in IoT applications, especially in lights and lighting management systems. They are also used in wired communication systems such as computer networks, etc. Moreover, they are used in various power supply cables and systems, and many other residential, industrial, and automotive applications.

Working Principle

When the voltage across the 0805L010YR exceeds certain threshold values, the device will be activated, which initiates a trip action. The PTC material will reach its Curie temperature, increasing its resistance drastically to cut off power to the circuit. This is what is referred to as overcurrent protection.

The current rating of the 0805L010YR is a mere 0.1A, and it can continuously handle powers up to 1W. The 0805L010YR has very low thermal resistance and can dissipate heat effectively. If the fault condition persists, the PTC will remain in its tripped state until the current falls below the holding current value.

The 0805L010YR has a built-in push switch that can be used to manually reset the device. Once the device has been reset it will return to its normal working state and allow the current to flow again. It is also self-reset when the short-circuit or overcurrent condition is removed, and the PTC material cools down enough for the current to fall below the holding current.

The 0805L010YR is a reliable and effective PTC resettable fuse. It has the ability to protect circuits from overcurrent, and has the added bonus of manual and self-reset capabilities, making it ideal for a wide range of applications. It is easy to install, cost-effective, and ensures fast and reliable protection.

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