MAL218097506E3 Capacitors

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Aluminum - Polymer Capacitors are a unique type of capacitor characterized by the use of aluminum and polymer as the electrodes, hence the name. Such capacitors are commonly used for high-voltage applications and offer increased capacitance and improved stability compared to conventional aluminum electrolytic capacitors. The MAL218097506E3 is a high-performance polymer aluminum capacitor that features an entirely solid construction with an optimized and compliant microplated aluminum shell.

Application Fields

The MAL218097506E3 is ideally suited for the following application fields:

• High-current DC-DC converters and switching power supplies
• High-current power circuits
• Motor control circuits
• Switched-mode power supplies
• High-voltage circuit protection

Working Principle

The MAL218097506E3 capacitor is a high-performance capacitor specifically designed for applications requiring a high ripple current capacity. It features an aluminum outer layer that is plated with a semiconductor material that acts as the voltage limiting device. This improves performance and stability, as well as providing improved thermal stability. Inside the electrodes are filled with a solid polymer that provides specified capacitance, low ESR (Equivalent Series Resistance), and improved life expectancy.

When exposed to pulsed voltages, the capacitor’s dielectric layer will expand and contract, creating an internal electric field that increases the capacitance. The increased capacitance, in turn, stores more energy, resulting in increased current carrying capacity and improved life expectancy. The maximum operating temperature of the MAL218097506E3 is rated 105 degrees Celsius continuous at 100 kHz and 10V.

The capacitance of the MAL218097506E3 is also significantly higher than many aluminum electrolytic capacitors. Aluminum electrolytic capacitors can reach up to 1000uF whereas the MAL218097506E3 capacitor provides up to 2200uF capacitance. This increased capacitance provides improved power efficiency and superior power supply stability in applications with high current or wide temperature ranges.

Conclusion

The MAL218097506E3 aluminum-polymer capacitor provides superior performance in a wide variety of applications. It is well suited for high-current DC-DC converters and switching power supplies, high-current power circuits, motor controller circuits, switched-mode power supplies, and high-voltage circuit protection. Its solid construction and optimized microplated aluminum shell provide increased capacitance, improved life expectancy, and superior thermal stability. These features combined with its high capacitance make it an ideal choice for applications that require a high ripple current capacity and superior power efficiency and stability.

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