SMG450VB68M20CLL

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Aluminum electrolytic capacitors are widely used in a variety of electrical devices because of their relatively low cost, their ease of manufacturing and their long life span. The SMG450VB68M20CLL is a particular type of aluminum electrolytic capacitor produced by KEMET. This type of capacitor is especially suitable for applications where miniaturization is required and where a wide range of temperature operating range is needed.

Specifications

The SMG450VB68M20CLL is rated for a voltage of 450 volts, a capacitance of 68 uF and an electrolytic capacity of 20 milliliters. The temperature range for this device is -55 degrees Celsius to +125 degrees Celsius. Furthermore, the device is rated for a maximum operating frequency of 1MHz, a maximum ripple current of 4.8A and a dissipation factor of 1.5%.

Applications

The SMG450VB68M20CLL is suitable for filtering, semiconductor protection, energy storage and power supply applications. Due to its wide temperature range and its high capacitance and voltage ratings, this type of capacitor is often found in automotive, telecommunications, industrial automation and aerospace applications. The device also has good audio and is used for timing and precision circuits.

Working Principle

An aluminum electrolytic capacitor consists of three main parts; the anode, the cathode and the electrolyte. The electrolyte acts as an insulator and electrolyte between the anode and the cathode. Inside the capacitor, there is an oxide layer that forms on the anode when current is passed through it. This oxide layer helps to build up a charge on the anode. The cathode is made of a conductive material such as aluminum and has a negative charge.

When a voltage is applied to the capacitor, the electrons from the cathode flow to the anode and a electric current passes through the capacitor. As the electrons pass through the oxide layer, they are stored on the anode and create a potential difference between the anode and the cathode, which is known as the capacitance. This capacitance increases as more charge is accumulated on the anode.

When the voltage across the capacitor decreases, the electric current reverses and the charge from the anode is discharged. This is known as the discharge cycle and can be repeated many times as the capacitor matures.

Advantages

Aluminum electrolytic capacitors offer a number of advantages over other types of capacitors. For example, they have much higher capacitance than other types and they can be used over a wider range of temperatures. Additionally, due to their compact size, they can be used in applications where miniaturization is required. Furthermore, they have a long life span and are relatively inexpensive.

Conclusion

The SMG450VB68M20CLL is a type of aluminum electrolytic capacitor produced by KEMET. It is suitable for applications requiring a wide temperature range and low cost. It has a capacitance of 68 uF, a voltage of 450 volts and a maximum dissipation factor of 1.5%. Thanks to its wide range of advantages, it is commonly used in automotive, telecommunications, industrial automation and aerospace applications.

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