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Aluminum Electrolytic Capacitors

Aluminum Electrolytic Capacitors have long been in use in many electronics as a major component in power supplies, signal processing and many other applications. The B43305A9107M87 is a capacitor specifically designed for use in high frequency switching power supplies. It is an etched foil type sealed in a aluminum electrolytic can.

B43305A9107M87 Application Field and Working Principle

The B43305A9107M87 is designed with a combination of aluminum electrolytic and tantalum capacitors with a high operating temperature, low leakage current and high frequency/high ripple current output. This type of capacitor is ideal for high frequency switching power supplies used in applications such as LED lighting, LCD TVs, home audio equipment, automotive electronics, game consoles and so on.

The operating principle of the B43305A9107M87 is similar to that of other aluminum electrolytic capacitors. It is composed of a sealed aluminum can, an electrolyte containing an electrolyte paste, a pair of aluminum electrodes and a foil. The electrodes are connected to the components and the electrical connection is made by connecting the foil to the outer case of the capacitor. When a voltage is applied, the current flows through the electrolyte, creating a current that causes a charge imbalance between the two electrodes. This results in an alternating current flow and the capacitance is determined by the amount of charge stored between the two electrodes.

The B43305A9107M87 is designed for high frequency switching power supplies and has an operating temperature range of -25°C to 85°C. This allows the capacitor to remain stable even under low temperatures and high ripple current output. It has a capacitance range of 0.47µF to 22µF and a maximum voltage rating of 130V. Additionally, it also has a maximum surge current rating of 30A and a maximum leakage current of 0.02mA.

Advantages and Disadvantages

One of the major advantages of the B43305A9107M87 is its long life cycle compared to other aluminum electrolytic capacitors. The capacitor has a higher holding voltage, a longer self-discharge time and a higher ripple current rating, resulting in a longer lifespan. Additionally, it is capable of handling high temperatures and still remain stable and reliable. On the other hand, one of its major disadvantages is its comparatively high cost compared to other aluminum electrolytic capacitors.

Conclusion

The B43305A9107M87 is a great option for those looking for a capable and reliable aluminum electrolytic capacitor for their high frequency switching power supplies. Its combination of high operating temperature, low leakage current and high frequency/high ripple current output make it ideal for LED lighting, LCD TVs, home audio equipment, automotive electronics, game consoles and more. Additionally, its long life cycle and high surge current rating are particularly attractive. However, its comparatively high cost may be prohibitive for some.

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