Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors use a solid aluminum oxide layer as an insulator between two conducting plates. This oxide layer provides an electrical field to store energy. When applied with a voltage, current flows through this insulating layer and the capacitance increases. Simple capacitors are typically unipolar and have two connections; one positive and one negative. The capacitance value of the capacitor is determined by the number of electrons flowing across the dielectric.

MAL210473682E3 Application Field and Working Principle

MAL210473682E3 aluminum electrolytic capacitors are widely used in numerous applications, ranging from consumer electronics to industrial equipment. These capacitors offer a reliable, low-temperature solution for voltage stabilization in a wide range of products. With their multi-layered design, these capacitors offer superior performance in terms of temperature and jitter, compared to conventional single-layer capacitors.

The MAL210473682E3 aluminum electrolytic capacitors are constructed of a core made of a slim stack of aluminum oxide and aluminum plates. A voltage is applied to the lead wire, thereby generating a current flow through the oxide layer. This current creates an electric field, and the capacitance is increased or decreased depending on the amount of current passing through the oxide layer. This change in capacitance is directly related to the magnitude of the electric field produced.

The capacitance of the MAL210473682E3 is quoted at 25μF ±15%. The stated preference is based on the ESR (Effective Series Resistance) and capacitance measurement accuracy ratings at 1 kHz and −25 °C or 70 °C. The lower DCL (Direct Current Leakage) products offer the greatest surge stability at any temperature, making them suitable for applications where maximum capacitance stability is needed.

In terms of endurance, the MAL210473682E3 capacitor is rated for 10,000 cycles at 25°C, with a maximum voltage of 220 VAC. The calculated life span is 20,000 hours at 25°C, with a maximum temperature of 85°C. Specialized constructions are also available for higher voltage and temperature ratings.

The MAL210473682E3 is an excellent choice for tackling a wide range of power supply and stability challenges due to its high rated capacitance, wide temperature range, and long life span. Applications include motor drive circuits, power supplies, switched-mode power supplies, and more. This capacitor has seen extended use in both consumer electronics and industrial equipment, such as fans, LED drivers, and power supply modules. Eventually, it will become a valuable building block in even more complex systems.