PTCCL05H271DBE

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PTC Resettable Fuses are an important part of electrical and electronic systems. They offer a safe and reliable way to protect circuits against short circuits, overloads, reverse current, surge currents, and open circuits. A resettable fuse works by interrupting the circuit when a current or voltage overload occurs. When the problem is resolved, the circuit will automatically reset.

The PTCCL05H271DBE is a type of resettable fuse. It is designed for use as an over-current protection device in small digital solutions. It is built with an 80V rating and is offered in three variations which include SOT-23, SC-59, and SOT-323 packages for space savings.

The main application area for PTCCL05H271DBE is equipment that requires over-current protection from accidental short circuits in digital electronic applications. These applications include USB ports, peripherals, DC power supplies, PCs, laptops, and home and office equipment such as printers, TVs, and sound systems. The fuse is suitable for voltage fluctuations from 0 to 30 volts.

The working principle of the PTCCL05H271DBE is based on the semiconductor fuse principle. It consists of a PTC element and a sense resistor that are connected in series with the load. When no electrical current flows, the PTC element remains in its normal state and the circuit is kept alive allowing the normal current to pass through the circuit. However, when the current flow exceeds the protection limits, the PTC element switches to an open state, causing the circuit to be opened and preventing any further current flow.

Once the fault has been rectified, the PTC element will switch back to its normal state, allowing the current to flow through the circuit and the system to resume operation. The design of the device helps to provide circuit protection with fast response times and good tripping accuracy, making it ideal for use in digital applications.

The PTCCL05H271DBE is a good choice for over-current protection in digital systems. It offers fast response time and accurate current protection, and is available in packages which are space saving. With its 80V rating, it provides reliable circuit protection for a wide range of digital applications.

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