PTGL09AS120K6B51B0

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PTC resettable fuses are a specialized form of fuse that is designed to be reusable. Commonly found in consumer electronics, these fuses are used for electrical protection and have a higher price tag due to their convenience features. The PTGL09AS120K6B51B0 is a specific type of PTC resettable fuse used for a wide range of applications. This article will discuss the PTC resettable fuse, its application field, and its working principle.

What Is PTC Resettable Fuse?

A PTC resettable fuse is a type of electrical protection device. It is designed to protect a device or circuit from overcurrent. When the current flowing through the device exceeds the rated current of the fuse, it trips and functions as an open circuit. This is different from a traditional "one-shot" fuse that must be replaced every time it trips.

The resettable fuse has an element that is made up of Polyvinyl Chloride (PVC). This PVC material has a temperature coefficient that changes its electrical properties as the temperature increases. When the circuit current exceeds the rated current, the heat generated in the fuse causes the PVC element to expand and interrupt the current. This makes the fuse behave as an open circuit.

Application Field of PTGL09AS120K6B51B0

The PTGL09AS120K6B51B0 is an ATC type resettable fuse designed for 12V application. Its rated current is 1A and its voltage range is 6.3VAC to 24VAC. It is typically used in consumer electronics such as 30 Watt switching power supplies, DC/DC converters, and LED lighting. It is also used in solar power plants, wireless chargers, telecommunication systems, industrial equipment, and audio/video systems.

Working Principle of PTGL09AS120K6B51B0

The PTGL09AS120K6B51B0 is designed to protect products and circuits from overcurrent. When a short circuit or overload occurs, the current passing through the PTC element of the fuse will cause it to heat up. When the current exceeds the rated current of the fuse, the heat generated will trigger the PTC element to expand. This will interrupt the current, effectively protecting the device or circuit. After the fuse has tripped, it must be reset in order to restore the circuit.

The PTGL09AS120K6B51B0 has a manual reset function, which allows the user to manually reset the fuse after it has tripped. To reset the fuse, the user presses a button located on the fuse itself. This releases a spring that resets the PTC element, allowing it to function once again.

The PTGL09AS120K6B51B0 is a PTC resettable fuse with a rating of 1A at 6.3VAC to 24VAC. It is used in a wide range of consumer electronic products, including 30 Watt switching power supplies, DC/DC converters, and LED lighting. The working principle of the fuse is to shut off the current when it exceeds the rated current, and to reset the circuit when the user presses the reset button. This ensures the protection of the device or circuit from overcurrent and short circuits.

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