RUEF090-AP Circuit Protection

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PTC Resettable Fuses are a type of semiconductor device that acts like an ordinary fuse, but which can be reset after it has been tripped. The RUEF090-AP is one of the most commonly used resettable fuses. It is a low-power, surface mounted fuse used for circuit protection in consumer electronics, computers, and other electrical and electronic equipment.

The RUEF090-AP is typically used in circuits with a maximum voltage of 24V. It is also rated for currents up to 0.90A. The device has a thermal cut-off temperature of 70°C, and it is commonly used to protect low-voltage, low-power circuits against over-current and short-circuit conditions.

It can be mounted on a printed circuit board (PCB) and requires no additional mounting hardware. It is also available in a variety of package types and sizes, including 0201, 0402, 0603, 0805, and 1206. The device has an operating temperature range of -55 to 125°C and is RoHS compliant.

The RUEF090-AP has a dampening effect on current-inrush transients due to its internal thermal time-delay mechanism. The device also has self-resetting capabilities which enable it to automatically reset itself during normal operating conditions once the over-current fault has been cleared. When an over-current fault occurs, the PTC resets itself by rapidly cooling down, thereby reducing the current. When the current drops below the overload trip point, the device automatically resets itself and enables normal circuit operation.

The RUEF090-AP is typically used in applications such as consumer electronics, appliances, computers, automotive, GPS, portable instruments, LED illumination, and security systems. It can also be used in a wide range of industrial and medical applications. The device provides excellent protection against over-current faults and is ideal for low-voltage, low-power circuits.

The RUEF090-AP is a reliable and cost-effective solution for protecting against short-circuit faults in consumer electronics, computers, and other electrical and electronic equipment. It has a wide range of features and advantages, including low-power consumption, small package size, and easy installation. The device also has a long lifetime, as it can be reset hundreds of times and has a low leakage current. Additionally, it has a superior current pulse dampening capability compared to traditional fuses.

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