0ZRF0012FF2B

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PTC resettable fuses, also known as polymer positive temperature coefficient (PPTC) resettable fuses, are widely used for the protection of electric and electronic products from overcurrent. They provide an effective solution for protecting circuits from overloads and short circuits. The 0ZRF0012FF2B resettable fuse is a typical PTC resettable fuse with a very low hold current. It is used in a wide range of applications such as automotive, industry, and consumer electronics.

The 0ZRF0012FF2B resettable fuse has a switched-mode type of resetting operation, which allows it to reset automatically after an overload current is detected. In this type of fuse, the resistor element consists of a passive element and a switching element. The passive element is composed of a glass bead that acts as a constant current source and a polystyrene positive temperature coefficient (PPTC) chip that acts as a resistance. The switching element is composed of a thin film resistor and a transistor switching element.

The working principle of the 0ZRF0012FF2B resettable fuse is based on the PPTC chip. When the current passes through the PPTC chip, it produces heat due to the positive temperature coefficient. This heat causes the chip to expand and increase the resistance of the chip, thus limiting the current passing through it. If the current is greater than the specified threshold, the chip will expand to a point where it cannot recover, and will remain at this high resistance level, effectively blocking the current.

The 0ZRF0012FF2B resettable fuse has a wide range of applications in different industries and consumer electronic products. It can be used for the protection of power supplies and other components from overcurrent and short circuits. It is also commonly used in automotive, industry, consumer electronics, and telecommunications applications. For instance, it is used in automotive applications such as brake systems and power windows, and in consumer electronics such as laptop and charger sockets. It is also used in telecommunications applications such as optical and xDSL systems.

The 0ZRF0012FF2B resettable fuse is an effective solution for protecting circuits from electrical overcurrent and short circuits. It is easy to install and has a low cost, and can be reset automatically without the need for manual intervention. It is used in a wide range of applications and is a reliable and cost-effective solution for providing circuit protection.

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