ERWL401LGC562MEF5M

Aluminum electrolytic capacitors, also known as "polarized" capacitors, are the most widely used type of capacitor. These capacitors are composed of two aluminum foil electrodes that are separated by a dielectric material, usually paper. The electrodes are then immersed in an electrolyte, typically a solution of potassium hydroxide. The capacitance of an aluminum electrolytic capacitor is determined by the area of the electrodes, the thickness of the dielectric material, and the type of electrolyte.

The ERWL401LGC562MEF5M is an aluminum electrolytic capacitor specifically designed for power supplies and high-current applications. It has a very low equivalent series resistance (ESR) of 0.02 ohms, which allows it to handle a high current of up to 10,000 A without considerable voltage drops. The capacitor also has a ripple current capability of up to 90 A, making it ideal for high-frequency applications. The operating temperature range of the capacitor is -55 °C to +105 °C, which extends its life and provides reliable operation in hot environment applications. It is important to note that this capacitor should be derated above 70 °C for long-term operation.

The working principle of an aluminum electrolytic capacitor is based on the fact that the aluminum foil electrode has one side that is anodic and the other side is cathodic. The anode and cathode are connected to the positive and negative supply, respectively. When a voltage is applied across the terminals, current flows from the anode to the cathode and charges the capacitor. This causes the polarized ions contained in the electrolyte to move towards the appropriate electrode, resulting in a buildup of charge on each electrode. As this charge builds up, the capacitance of the capacitor increases, resulting in an increase in the voltage across the terminals.

In applications requiring high ripple current and low ESR, such as power supplies and high-current applications, the ERWL401LGC562MEF5M aluminum electrolytic capacitor can provide superior performance. The capacitor’s long operating temperature range, low ESR, and high ripple current capability make it ideal for these types of applications.