PTGL05AS3R9K2B51B0

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PTC Resettable Fuses, also known as posistor fuses, are becoming increasingly popular as an alternative to traditional overcurrent protection methods. They are a low-cost, low-maintenance device that offers resetable overcurrent protection in a variety of power applications. The PTGL05AS3R9K2B51B0 is a popular PTC Resettable Fuse that has been designed for general purpose protection against overcurrents.

PTC Resettable Fuses use a polymeric material which is highly sensitive to heat. This material conducts electricity up to a certain temperature but when the temperature reaches a certain point, it becomes an insulator. This is known as the "trip temperature" and is determined by the manufacturer. Once the trip temperature is reached, the PTC resettable fuse will open and the circuit will be disconnected from the power source, preventing further damage. The PTC Resettable Fuse can then be reset when the overcurrent is cleared and the temperature has dropped below the trip temperature.

The PTGL05AS3R9K2B51B0 PTC Resettable Fuse has a rated voltage of 12V and a maximum current rating of 0.5A. Its trip temperature is 53°C, which is easily achievable in most circuits. It is UL-certified and has a cross-section size of 5.4x6.1mm. It is suitable for applications such as computer and electrical equipment, automobiles, home appliances, LED lighting, and electronic toy and game circuits.

The PTGL05AS3R9K2B51B0 PTC Resettable Fuse has been widely used in applications where the levels of mechanical stresses are relatively low compared to traditional overcurrent protection methods. This is because the fuse element is physically isolated from the current carrying path, meaning it is not subject to the stresses and strains that are experienced in traditional fuses. This makes the PTC Resettable Fuse an ideal choice for protecting systems that are frequently exposed to shock and vibration, such as those found in automobiles and other industrial applications.

The PTGL05AS3R9K2B51B0 PTC Resettable Fuse is relatively easy to install and maintain, making it a preferred choice for many engineers. It is also a cost-effective solution to overcurrent protection, as the cost of the component is typically much lower than that of a traditional fuse. In addition, the device can be used repeatedly, making it an attractive option for the majority of applications.

The working principle of the PTGL05AS3R9K2B51B0 PTC Resettable Fuse is simple and straightforward. The fuse element is composed of a polymeric material which is highly sensitive to heat. When the current exceeds the trip temperature of the device, the element will open and the circuit will be disconnected from the power source, preventing further damage. The device can then be reset when the overcurrent is cleared and the temperature has dropped below the trip temperature.

In conclusion, the PTGL05AS3R9K2B51B0 PTC Resettable Fuse is an ideal choice for protecting sensitive electric components and circuits. It offers reliable protection from overcurrents while being relatively easy to install and maintain. The cost of the component is typically much lower than that of a traditional fuse, making it a cost-effective solution for many applications. Its simple working principle ensures that it is highly reliable and can be used repeatedly in the event of an overcurrent.

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