MAL214658101E3

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are named because they employ an electrolytic grade aluminum metal foil as the anode material. Aluminum electrolytic capacitors are characterized by their large capacitance values per unit volume, wide temperature range and long operational life. They have historically been used in applications where the space available to incorporate a capacitor was limited and the application demanded high capacitance values. They are available in a variety of types and as either surface mount or through-hole devices.

The MAL214658101E3 is a Type 2, polymer industrial grade aluminum electrolytic capacitor. It takes a form of a cylindrical body, made from a combination of aluminum plates and a polymer dielectric layer. It has a capacitance value of 47μF and an impact resistance rising up to 4,450g. This capacitor is used for decoupling, energy storage and supply voltage stabilization, where good ripple current and miniaturization are required. It also offers a wide operating temperature range of – 40℃ to +105℃.

Working Principle

An aluminum electrolytic capacitor consists of two electrodes, a positive plate and a negative plate, separated by a distance. When alternating current passes through the capacitor, a wire mesh is created between the plates, forming a diffusion barrier that charges and discharges as the current changes. The success of aluminum electrolytic capacitors relies on a properly designed diffusion barrier. A proper design involves forming the barrier from an electrolyte which is composed of an extremely thin film of oxide on an aluminum plate. This oxide film separates the positive and negative polarities of the capacitor, allowing the capacitor to charge and discharge quickly.

The working principle of the MAL214658101E3 aluminum capacitor follows the steps of a regular capacitor, with differences related to the construction of its body. This aluminum electrolytic capacitor follows an internally sealed stack design with a higher ripple current. It has an anode composed of an electrolytic aluminum plate and a dielectric polymer layer which provides additional insulation capacity and a higher voltage rating. This capacitor also offers longer operational life due to its hermetically sealed case, making it suitable for decoupling, energy storage and voltage stabilization.

Applications

The MAL214658101E3 aluminum electrolytic capacitor is suitable for applications that require high capacitance values, long operational life and a wide operating temperature range. It is commonly used in industrial decoupling, energy storage and supply voltage stabilization applications. Some of the applications this capacitor is a suitable for include:

• Power supply for electronic equipment.
• Noise reduction in signal lines and power lines.
• DC-DC circuit decoupling.
• Automatic voltage regulation converters.
• Colour picture tube digital random circuit.
• Colour TV timing- and digital circuits.

The MAL214658101E3 aluminum electrolytic capacitor is also suitable for high voltage applications and audio equipment. This capacitor offers excellent performance and high reliability across a wide range of applications. Its miniaturized construction ensures that it can be used in applications where a small product size is required.

Conclusion

The MAL214658101E3 aluminum electrolytic capacitor is an ideal choice for applications that require long operational life, a wide operating temperature range and high capacitance values. It has been designed to be highly reliable and is suitable for a variety of high voltage applications and audio equipment. By employing a combination of an electrolytic aluminum plate and a polymer dielectric layer, the MAL214658101E3 provides superior performance and reliability. Its miniaturized construction also makes it suitable for applications where space is at a premium.

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