SMH16VN822M22X25T2

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Aluminum electrolytic capacitors have come a long way in providing large capacitance in a relatively small footprint. The SMH16VN822M22X25T2 is an example of a modern aluminum electrolytic capacitor from one of the leading manufacturers in the industry. It is highly suitable for a variety of application settings due to its large capacitance, voltage rating, and other characteristics.

Features and Benefits

The SMH16VN822M22X25T2 features an impressive 2200 μF capacitance at 25 volts. This is an extremely high rating in a remarkably small 20 x 25mm package. It also has an 85°C maximum operating temperature, high ripple current rating, a capacitance tolerance of ±20%, and an equivalent series resistance of up to 1.1 ohms. A long life rating of up to 5,000 hours ensures reliability in the most demanding applications.

Top Applications

The SMH16VN822M22X25T2 is a multipurpose aluminum electrolytic capacitor well-suited for a range of applications including:

• DC/DC converters in computers and consumer electronics
• High frequency power supplies
• Audio equipment
• Schmidtt triggers

In addition, the SMH16N822M22X25T2 is suitable for conditions that require high operating temperatures, high ripple current, and long life.

Working Principle

Aluminum electrolytic capacitors are constructed from two metal plates that are separated by an electrolyte. The electrolyte is usually an alkaline solution and allows for a higher capacitance than other capacitor technologies like ceramic or tantalum. Any voltage applied across the capacitor will cause a current to flow through the electrolyte and between the two metal plates. This results in a difference in charge between the two plates, thereby store an electric field or energy.

In the SMH16N822M22X25T2, two aluminum foil plates serve as the electrodes and are bonded together with a paper insulator. These aluminum foil plates are etched, rolled, and immersed in an electrolytic solution. The electrolyte provides a conducive path between the plates, allowing the electric current to flow.

When the voltage between the two plates of the SMH16N822M22X25T2 exceeds the thermal rise threshold of the device, the current flow is limited by the internal resistance of the electrolyte and the device heats up and eventually shutsoff. This prevents the capacitor from overcharging and allows it to operate safely.

Conclusion

The SMH16N822M22X25T2 aluminum electrolytic capacitor is a technologically advanced device that offers a large capacitance and voltage rating for general purpose applications. It is highly reliable in both high temperature and high ripple current conditions due to its long life rating. Its working principle has been described above, but its many capabilities are available for any interested engineers to discover.

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