B41252B9128M

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Aluminum electrolytic capacitors are widely used in electronic systems. In essence, they store electric charge in the form of energy, and then release it when needed. The B41252B9128M is an aluminum electrolytic capacitor and its application field and working principle is essential to understand for anyone who wants to use it.

Characteristics of B41252B9128M

This particular capacitor has a capacitance value of 220uF, an operating voltage of 50 VDC, and a temperature rating of 85°C. The tolerances of this component are ±20%, and it has an impedance of 90 ohms. It is an axial-lead type capacitor, meaning that the leads are spaced at a distance of 4.8 mm and protrude from the side of the capacitor. This model is also polarized, meaning that one of the leads will be longer than the other, thus having a different purpose than the other one.

Application field of B41252B9128M

The B41252B9128M is primarily used for oscillator circuits, and for filtering low-frequency electrical signals. This capacitor is well-suited for radio, audio, and automotive applications, where noise and current fluctuations must be kept to a minimum. Additionally, since it is polarized, it can also be used in circuits where a massive electric current needs to be supplied. For instance, it is used to regulate the amount of current flowing in power supplies and DC motors.

Working principle of B41252B9128M

The working principle of an aluminum electrolytic capacitor is based on the Faraday Law of Electromagnetic Induction. In an electrolytic capacitor, electric charges are stored in a thin layer of oxide that acts as the dielectric material, which is situated between two thin metal foils. When a voltage is applied across the capacitor, the positive charges of the cathode and the negative charges of the anode combine and form an electrical field through which current flows. This current causes the oxide to be polarized, and the charges stored in it begin to accumulate. This accumulation causes an increase in the capacitance of the capacitor. When the current stops flowing, the charges stored in the oxide begin to decay, and the polarization no longer exists, thus returning to its original capacitance.

Conclusion

The B41252B9128M is a type of aluminum electrolytic capacitor used for switching and oscillator circuits, as well as filtering low frequencies in radio, audio, and automotive applications. It has a capacitance value of 220uF, an operating voltage of 50 VDC, and a temperature rating of 85°C. Its working principle is based on the Faraday Law of Electromagnetic Induction, in which electric charges are stored in a thin layer of oxidized metal. By understanding its application field and working principle, users can get the best performance from this capacitor.

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