B43505A2477M007

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Aluminum electrolytic capacitors are widely used in a variety of applications. B43505A2477M007 is one such type of aluminium electrolytic capacitor and is popularly known for its high performance in terms of its capacitance, life and temperature coefficient values. The application field and working principle of B43505A2477M007 are discussed below in detail.

Application field

B43505A2477M007 is mainly used in consumer electronics as well as in industrial applications. Its main application includes:

• Inverting and boosting circuits
• Power supply decoupling
• Switched mode power supplies(SMPS)
• DC/DC converters
• Motor drivers
• Filter circuits
• High frequency circuits

The enhanced characteristics of B43505A2477M007 make it an ideal choice for these applications. It has a capacitance of 4.7μF (45~55V dc) and a temperature coefficient of -50 to +100ppm/°C. It also delivers a long life time, up to 3000 hours at +85°C.

Working Principle

B43505A2477M007 works on the principle of electrolytic capacitance. It comprises an aluminium core, which is then covered with a thin anodic layer on its surface. This anodic layer acts as an insulator and prevents current from flowing through the core. A ferroelectric electrolyte is then used to activate the anodic layer. When a voltage is applied between the anode and cathode electrodes, an electric current begins to flow through the anodic layer and electrolyte, creating a layer of insulating dielectric on the surface of the core.

This dielectric layer allows electrons to move freely only between the anode and cathode electrodes. The capacitance of the capacitor increases as more charges can now be stored in the capacitor, allowing it to deliver a larger range of capacitance. As the number of electrons increases, the capacitance increases. The capacitance can be adjusted by varying the amount of current that passes through the electrolyte.

In addition, the temperature coefficient of the capacitor is also determined by the electrolyte and the amount of current that passes through it. The better the quality of the electrolyte, the lower the temperature coefficient of the capacitor. This means that the capacitor can maintain the same level of capacitance even when the surrounding temperature changes.

Conclusion

B43505A2477M007 is an aluminium electrolytic capacitor that is widely used in consumer electronics and industrial applications due to its high performance. It works on the principle of electrolytic capacitance and has a temperature coefficient of -50 to +100ppm/°C. Its long life time and excellent capacitance enable it to handle considerable current and voltage spikes in a variety of conditions. Overall, B43505A2477M007 is an ideal choice for high performance applications.

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