B59451C1130B070

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Inrush current limiters (ICL) have become a popular and effective tool for controlling current in an application, particularly in mobile and automotive electronics. The B59451C1130B070 is an example of an ICL that offers reliable inrush current protection and a simple design. This article goes in-depth on the application fields and working principles of the B59451C1130B070.

What is an Inrush Current Limiter (ICL)?

An Inrush Current Limiter (ICL) is a piece of equipment used to control the maximum current flow into a unit or system when the power is turned on. This helps prevent overloads due to a sudden surge, which can damage components through overheating. By limiting the surge, ICLs protect electrical components from thermal damage and limit the chances of a permanent failure.

Application Fields of B59451C1130B070

The B59451C1130B070 is an advanced ICL designed for protection of automotive electronics and other systems subject to high power surges. It is used to reduce the current flow to prevent overload and thermal damage during startup. The device is designed for applications in automotive, consumer electronics, industrial and transportation.

The B59451C1130B070 offers a broad voltage range of 3.3V to 28V, making it suitable for a variety of systems. It provides a peak current limit of 15A, and is capable of handling inrush currents up to 60A without any failure. It also features a fast response time of 2μs, with a discharge time of only 10μs, making it suitable for fast and accurate current limiting.

Working Principle of B59451C1130B070

The B59451C1130B070 uses a thermally sensitive element to limit current during startup. This is done by dissipating the energy of the inrush current through a controlled path, thus limiting the peak current. The device is connected in series with the load, and works through a process of heating and cooling. Below is a detailed overview of the working principle of the B59451C1130B070:

• When the power to the device is switched on, the inrush current passes through the thermally sensitive element.
• The thermally sensitive element heats up and increases in resistance.
• This reduces the current flow, limiting the peak current to a safe range.
• Due to its fast response time, the ICL quickly dissipates the energy of the inrush current.
• The thermally sensitive element then cools down, allowing the current to flow without restriction once again.

Conclusion

The B59451C1130B070 is an effective inrush current limiter that can help to protect multiple systems from damaging current surges. With a broad voltage range, fast response time, and robust design, it is suitable for automotive, consumer electronics, industrial and transportation applications. The device uses a thermally sensitive element to limit current during startup, helping to prevent overloads and preserve the life of electrical components.

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