RUSBF120-2

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PTC Resettable Fuses are specialized components used to protect electronic circuits from overcurrent. RUSBF120-2 is a specific type of PTC Resettable Fuses, which has a wide range of applications and is suitable for a variety of low power applications. In this article, we look at the application field and working principle of the RUSBF120-2.

Application Field of the RUSBF120-2

RUSBF120-2 is a PTC Resettable Fuse that is designed for low power applications up to 5 Amps. This device is suitable for a variety of applications such as automotive, portable electronic devices, home appliances, and consumer electronics. It is especially suitable for use with low voltages circuits. This type of PTC Resettable Fuse is constructed from a combination of metal parts and non-metallic parts which allow it to withstand high temperatures.

This fuse is designed to provide a high level of current protection while maintaining a small form factor. It is designed to protect against over currents, short circuits and over-temperature conditions. This makes it useful for a range of low power applications, such as for laptop and cell phone charging ports, motor drivers, motor starters, power supplies, and any other electronic circuit where current protection is needed.

Working Principle of the RUSBF120-2

RUSBF120-2 is an intelligent fusing device which automatically responds to over-currents or over-temperature conditions. When an excessive current or temperature occurs, its internal polymer thermistor heats up and increases its resistivity to protect the circuit from further damage. Thus, it is able to protect circuits from destructive current or temperature conditions.

When the overloaded current turned off or the temperature drops, the internal polymer thermistor will cool down which will decrease its resistivity, allowing normal current to flow again. This is how the RUSBF120-2 unit is able to “reset” itself after being tripped, making it an ideal choice for a variety of applications.

The RUSBF120-2 PTC Resettable Fuse has a wide range of applications due to its small form factor and its ability to provide a high level of current protection while allowing for resetting itself after a overload. This makes it useful for a range of low power applications, such as for laptop and cell phone charging ports, motor drivers, motor starters, power supplies, and any other electronic circuit where current protection is needed.

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