RHEF200

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PTC (Positive Temperature Coefficient) Resettable Fuses are electronic components designed to protect electrical devices from short circuit current, overload, or reverse polarity. Unlike standard fuses, they do not need to be replaced after their failure, as they are able to reset after the fault is cleared. They are also known as Polyfuses, Fusetrons, Multifuse, Resettable Fuses, and Self-healing Fuse.

RHEF200 is a PTC Resettable Fuse with a compact size measuring 18.8mm x 8.5mm x 7.6mm. It is designed to provide up to 2A protection capability with low power consumption and fast response time. It is widely used in a variety of electronic devices including mobile phones, power banks, medical equipment, digital cameras, and other consumer electronics devices.

The working principle of RHEF200 is fairly simple. It consists of a bead of conductive polymer, which is wrapped around a pair of phosphor-bronze conductors. When the current passing through the fuse exceeds the trip current rating (2A in this case), the conductive polymer bead heats up due to the current and its resistance increases drastically, essentially blocking the flow of current and thereby protecting the circuit from further damage. Once the current reaches a safe level, the bead returns to its normal state, allowing the current to pass through the fuse again.

One of the main advantages of using the RHEF200 is its fast response time. It can react in just a few milliseconds to protect the circuit from dangerous current conditions and prevent further damage. This makes it perfect for use in high-speed circuits where a fast response is essential. It also has a wide voltage operating range of up to 24V.

Another advantage of the RHEF200 is its low power consumption. It consumes only a few milliwatts of power, allowing it to be used in devices with limited power resources. It also has a long life of up to 10,000 cycles, making it a reliable and cost-effective solution.

Overall, RHEF200 Resettable Fuses are a great solution for protecting a wide range of electronic devices from short circuit current, overload, or reverse polarity. They have a fast response time and a wide voltage operating range, making them perfect for use in high-speed circuits. They also have a low power consumption and long life, making them a reliable and cost-effective solution.

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