PTCCL05H150HTE

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PTC Resettable Fuses

PTC resettable fuses are a type of polymer-based, current-limiting, overcurrent protection device designed to protect electronic and electrical circuits from potentially damaging overcurrent conditions. PTC resettable fuses are a type of polyfuse and are named due to their ability to automatically reset themselves after they have tripped or opened a circuit due to an overcurrent, overload or short circuit condition.

PTCCL05H150HTE

The PTCCL05H150HTE is a polyfuse-based resettable fuse that provides overcurrent protection solutions for low voltage DC power supplies. It is designed for use in small, low-power applications, such as computer motherboards, power adapters, display backlight circuits, USB chargers, and portable electronic devices.

Application Field

The PTCCL05H150HTE is primarily designed for low powered electrical or electronic applications where current protection is required. It can be used in a variety of applications such as:

• Computer motherboards
• Display backlight circuits
• USB chargers
• Power adapters
• Portable electronic devices
• Automotive, marine, and industrial applications

Working Principle

The PTCCL05H150HTE works by detecting and limiting excessive current flow in an electrical circuit. The fuse consists of an integrated circuit, which is connected in series with a resistor and a PTC element, as well as an indicator LED. When the current flowing through the circuit exceeds a certain set point, the integrated circuit triggers the PTC element, which switches from a low to a high impedance state. The high impedance state effectively opens the circuit, limiting the current to a safe level and protecting the components of the circuit.

When the current flow returns to a safe level, the PTC element will reset itself, allowing the current to flow freely again. The indicator LED is used to indicate that the fuse has opened and needs to be reset. The fuse can then be reset by pressing a button, flipping a switch or in some cases, simply by disconnecting the power source.

The PTCCL05H150HTE is designed to provide overcurrent protection in a small, low-power package. The overcurrent protection can be adjusted by changing the value of the resistor connected in series with the PTC element, making the fuse suitable for a wide range of applications.

Conclusion

The PTCCL05H150HTE is a PTC resettable fuse designed for use in low-power applications. It works by detecting and limiting excessive current flow and can be adjusted for different current protection settings. The fuse is easy to use and can be reset quickly, making it an ideal choice for a wide range of applications.

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