RLD30P090UF

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PTC Resettable Fuses are the ultimate protection solution for circuits, due to their ability to automatically reset. The RLD30P090UF is a popular PTC Resettable Fuse, with its use popular in the medical, automotive, IT, and consumer electronics industries. This fuse is small and easy to install, and available in both radial lead and lead-free versions. Understanding the application field and working principle of the RLD30P090UF can help make it easy to incorporate this fuse into a device and provide maximum circuit protection.

The RLD30P090UF is designed to protect circuits from short circuit and overload conditions. The fuse is of the self-resetting type, meaning that it will reset itself automatically after the overload current goes down to a safe level. This feature makes the RLD30P090UF the ideal fuse where frequent trips or automatic reset is required, such as in medical equipment, IT systems, battery chargers, and consumer electronic products.

The working principle of the RLD30P090UF is based on thermodynamics. The fuse contains a thermistor, a temperature-sensitive resistor that changes resistance in response to temperature changes. During normal operation, the thermistor has a low resistance, allowing current to pass through the fuse. When an overload condition occurs, the resistance of the thermistor increases, preventing further current from passing. The increase in temperature caused by the overload also causes the fuse to open, breaking the connection and protecting the circuit.

The thermistor is designed to reset automatically when the overload current drops to a safe level. As the overload current decreases, the temperature of the thermistor drops and the resistance decreases. This decrease in resistance causes the fuse to reset, allowing current to pass once again. This ability makes the RLD30P090UF an ideal solution for protecting circuits from multiple overloads.

The RLD30P090UF is designed for use in a range of voltage and current applications. The fuse is available in two versions: a radial lead version with a maximum working voltage of 30V and a lead-free version with a maximum working voltage of 24V. Both versions have a rated current of up to 9A and an average time to trip of 10 seconds at 8X rated current.

The RLD30P090UF is simple to install and highly reliable. The radial lead version can be installed directly into a PCB, while the lead-free version can be soldered directly onto a circuit board. The fuse is also RoHS compliant, making it suitable for use in a wide range of applications.

The RLD30P090UF is one of the most popular PTC Resettable Fuses available. Its small size and high reliability make it ideal for use in a variety of applications, such as medical equipment, automotive electronics, IT systems, and consumer electronics. Understanding the application field and working principle of the RLD30P090UF can help make it easy to incorporate this fuse into a device and provide maximum circuit protection.

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