PTCCL05H950HBE

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PTC Resettable Fuses
PTC resettable fuses, also known as polyfuses or thermally protected fuses, are an important part of the safety systems in many electrical and electronic equipment. These fuses are designed to protect a device from overload currents, and they are somewhat similar to conventional fuses, but they are able to reset themselves when the fault condition has been corrected. Examples of PTC resettable fuses include the PTCCL05H950HBE.

Application Field
The PTCCL05H950HBE resettable fuse is in widespread use in a wide range of electronic and electrical equipment, such as commercial refrigeration systems, UPS systems, electric vehicles, HVAC systems, elevators, power supplies, laser diode drivers, RGB LED drivers, video projectors, and more. The fuse is also suitable for use in medical equipment, such as ventilators, infant incubators, ultrasound equipment, cardiac monitors, bed alarms, emergency stop buttons, and much more.

Working Principle
The working principle of the PTCCL05H950HBE resettable fuse involves the use of a special thermally sensitive element known as a polymeric positive temperature coefficient (PPTC). This PPTC element is made up of a polymer matrix that is filled with conductive particles, usually carbon black. When an over-temperature or over-current condition occurs, the conductive particles in the polymeric material are able to expand, creating large resistance values, thus limiting or preventing the current from flowing through the device. When the over-temperature or over-current situation is resolved, the conductive particles in the polymer matrix will contract, and the resistance values will drop, allowing the current to flow through the device again. This feature of the PTCCL05H950HBE resettable fuse allows the device to reset itself after it has been exposed to an over-temperature or over-current situation, making it a much more reliable form of protection than a conventional fuse.

Conclusion
The PTCCL05H950HBE is a highly reliable and reliable resettable fuse that is designed to protect electronic and electrical equipment from over-temperature and over-current situations. Its special thermally sensitive PPTC element is able to detect an over-temperature or over-current situation and limit or prevent the current from passing through the device, while at the same time allowing for an automatic resetting of the device once the problem has been corrected. The wide range of applications for this device demonstrates its impressive versatility and reliability.

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