ALS81A752LM250

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Aluminum electrolytic capacitors are widely used in various power electronics equipment such as power supplies, LED lighting and switching power supplies. They are also widely used in a variety of electronic signal processing applications. In the family of aluminum electrolytic capacitors, one of the most popular types of aluminum electrolytic capacitors is the ALS81A752LM250. This article will discuss its application field and its working principle.

The ALS81A752LM250 is an aluminum electrolytic capacitor with an executive standard of GB/T3667-2004. It is designed to meet the requirements of various power electronics equipment and electronic signal processing circuits. It is suitable for all electronics circuits requiring a high ripple current, low equivalent series resistance and a long useful life. It has the advantages of low cost and good humidity resistance.

The ALS81A752LM250 is a non-polarized capacitor with a temperature range of -30°C to +105°C. It has a nominal capacitance of 7.5μF, rated working voltage of 450V DC, a dielectric dissipation factor of 0.25%, and a high ripple current of 3,000mA. It is also rated for long-term operation of 5 years at 105°C, and an equivalent series resistance of 8Ω.

The ALS81A752LM250 is primarily applied in low-frequency applications such as power supplies and LED lighting applications. In these applications, it is used as an active filter component to reduce high-frequency noise, dampen voltage ripples, reduce switching distortion, and extend the working life of the equipment. It is also used as a decoupling capacitor for power supplies, to minimize the effects of input voltage fluctuations on the power supply stability.

The ALS81A752LM250 works by storing a charge in an electrolyte and employing a dielectric medium to separate the two electric poles. When a voltage is applied, a charging current will pass through the capacitor, charging the capacitor. As the capacitor charges, its capacitance will increase, and this will allow for an increased capacitive reactance and a decreased current flow. Then, when the input voltage is removed, the electric charge stored in the capacitor will be gradually dissipated. This cycle of charge and discharge is repeated as the capacitor is used in the electronic circuit.

In conclusion, the ALS81A752LM250 is a high-performance aluminum electrolytic capacitor, suitable for a variety of power electronics applications and electronic signal processing applications. It has a low cost and good humidity resistance, and is rated for long-term operation up to 5 years at 105°C. It is used primarily for low-frequency applications such as power supplies and LED lighting, where it is used as an active filter component to reduce high-frequency noise, dampen voltage ripples, reduce switching distortion, and extend the working life of the equipment.

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