RHEF050-2 Circuit Protection

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A PTC resettable fuse, such as the RHEF050-2, is an electrical component used to protect devices from overloads and surges. It is a self-resetting thermal switch that has the ability to disconnect an electrical circuit when a certain high temperature is reached, then reset itself when the temperature drops below a certain level. This type of safety device is becoming more widely used in a variety of applications in both industrial and consumer electronics.

The RHEF050-2 PTC Resettable Fuse is designed to protect circuit boards, power supplies, motors, and other equipment from an overload that could potentially cause damage. It is a thermal-bimetallic device that activates at a certain temperature, providing both over-current and short-circuit protection to a circuit. The device will trip open when exposed to an over-current, and will not reset until the temperature has dropped significantly below the trip-point. This design ensures that any potential damage from an overload or short-circuit is avoided.

The RHEF050-2 operates under a simple principle. It includes two bimetallic elements connected in series. When a large current flows through the device, the resistance of the bimetallic elements starts to increase due to Joule heating, thus limiting the current. When the current reaches the trip-point, the bimetallic elements open, disconnecting the circuit. When the current and temperature drop back to normal, the bimetallic elements reconnect, thus resetting the device.

The RHEF050-2 is ideal for use in a number of different application fields, including consumer electronics such as personal computers and cell phones, industrial applications such as process control, motor protection, and power amplification, and safety circuits in electrically powered vehicles. Its simple and robust design makes it reliable and cost effective, and its self-resetting capabilities make it an invaluable tool for protecting equipment.

In summary, the RHEF050-2 PTC Resettable Fuse is an ideal choice for protecting circuits against over-currents and short-circuits. Its thermal-bimetallic design ensures both reliability and cost-effectiveness, and its self-resetting capabilities make it an ideal solution for a variety of applications. From consumer electronics to industrial applications, the RHEF050-2 has the capability to provide reliable and affordable protection.

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