PTCCL09H271FTE

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PTC Resettable Fuses are a class of protective elements that continuously self-regulate current to a safe level. The PTCCL09H271FTE is a popular device belonging to this category.

The fuse is designed to protect circulating currents from overcurrent by allowing a predetermined maximum current on its primary circuit and blocking the excessive current. It is composed of Polycrystalline Ceramic and Nickel-plated Copper, which allows current that is over the predetermined limit to flow through the internal resistor. This increased current of resistance heating temperature, which then causes the internal resistor to increase in resistance and shut off the current flow.

The main application of the PTCCL09H271FTE is in the production of electronic products and home appliances. It is suitable for the overload protection of electrical circuits, as well as those involving temperature, current, and voltage protection. Additionally, it is used in mobile phone, computer, uninterruptible power supply, and medical equipment due to its high temperature performance.

In terms of the fuse’s working principle, it is based on the concept of self-regulation of current flow. When the current exceeds the nominal value, the resistance of the fuse increases and the circuit current drops. As the current reduces, the fuse temperature is quickly reduced and the resistance of the component returns to its original value. This is known as self-regulating, as the circuit current is regulated by the internal resistance of the fuse.

In general, the PTCCL09H271FTE is an important protective element with a wide range of applications. It is suitable for protecting electrical circuits from overcurrent and offering reliable security level that electronic products and appliances demand.

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