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Aluminum Electrolytic Capacitors

478LBA025M2AC application field and working principle

Aluminum electrolytic capacitors are one of the most common components in the electrical industry. The 478LBA025M2AC is a type of aluminum electrolytic capacitor of high capacitance and compact size. It is mainly used in DC input power supplies, inverters, motor control and switching power supplies.

The aluminum electrolytic capacitor is similar to other types of capacitors in that it stores electrical energy in the form of an electric field created by a charge differential. The aluminum electrolytic is different from other capacitors in that it consists of two aluminum foils treated with an electrolyte that allows it to achieve a higher capacitance.

The 478LBA025M2AC is a polarised, non-solid electrolytic capacitor operated at 25Volt DC. It features a compact size and large capacity. Its maximum capacitance is 47uF, the ESR is 0.1ohms and the rated current is 0.5Amp. It also has low leakage current and a wide operating temperature range from -55C to +105C.

The working principle of the aluminum electrolytic capacitor starts with a pair of anodised aluminum foils closely spaced between a separator. The foils are rolled together and impregnated with an electrolyte. A charge flows through and forms an electric potential difference between the two foils, thus generating a voltage across the capacitor. As long as the charge exists in the capacitor, a steady state electric field exists between the two plates.

When an alternating current is applied to the capacitor, it generates a relatively large ripple voltage in proportion to the frequency of the current due to the high inductance and electrostatic capacity. It can reduce the power supply noise. The 478LBA025M2AC has excellent characteristics and can be used to reduce the power supply noise.

Since the 478LBA025M2AC has a high capacitance, a wide operating temperature range, low ESR, and large inductance, it is ideal for use in DC input power supplies, inverters, motor control, and switching power supplies. It can also be used in audio processing circuits, filter network circuits and noise stifling circuits.

The 478LBA025M2AC is an important component in various applications and its size, capacitance and operating temperature range make it a highly suitable solution for many applications. Its simple working principle and robust design guarantee excellent performance and a long operational life.

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