PRG21AR420MS1RA

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PTC Resettable Fuses are electronic devices that provide circuit protection by temporarily interrupting the current flowing through an electrical system. They are typically used in applications where a fault would otherwise cause expensive equipment damage, for example in power supplies and power electronics. The PRG21AR420MS1RA is a PTC Resettable Fuse with an operating voltage of 24V and current rating of 2.2A.

The most common type of PTC Resettable Fuse is the linear self-resetting fuse, also known as the Polymeric Positive Temperature Coefficient (PPTC) relay. This type of device is composed of two parts, a positive element and a negative element. When the current passing through the positive element exceeds a predetermined value, the positive element heats up and begins to expand, causing it to eventually break the current path and interrupt the circuit. The negative element then cools off and contracts, allowing the circuit to be retried.

The PRG21AR420MS1RA is designed for use in applications where a secondary circuit is expected to react unpredictably or when a short or overload occurs. This type of fuse is used to protect sensitive circuits and components from being damaged due to over-current conditions. They are also commonly used in audio/visual equipment, appliances, computers, and lighting systems. The device is designed to trip when the current drawn exceeds the rating of 2.2A, and can be reset by pushing the red button located on the top of the fuse. The device will remain in a tripped state until the power source is removed.

The PRG21AR420MS1RA PTC Resettable Fuse offers many advantages over traditional fuses. For example, it is extremely reliable, does not need to be replaced after every use, and has very low loss characteristics. Furthermore, the device has minimal power dissipation, making it ideal for use in high temperature applications such as automotive systems where heat dissipation is a major concern. Finally, the PRG21AR420MS1RA is designed with a high current rating making it suitable for many applications.

In conclusion, the PRG21AR420MS1RA PTC Resettable Fuse is an ideal solution for protecting sensitive circuits and components in applications where short or overload faults are expected. The device offers a reliable and energy-efficient solution for protecting the system and components from damage due to over-current conditions. The device is easy to install and comes with a reset button that makes it easy to return the device to its original state if required.

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