LQS2G121MELZ30

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Aluminum Electrolytic Capacitors are an important family of capacitors that are widely used in a variety of electronic devices. The LQS2G121MELZ30 is an example of such a capacitor. It is well-suited for applications in industrial power supplies, inverters, motor drives, HID lighting, UPS applications, TV/audio circuits, and other applications where higher temperatures and long life are expected.

The LQS2G121MELZ30 consists of two aluminum foil plates that are anode and cathode respectively. An insulated paper spacer is placed in between the two aluminum foil plates providing insulation and mechanical strength. The foil electrodes and the paper spacer are then impregnated with a non-aqueous electrolyte. The terminal leads are connected to the respective plates which are then sealed in a can made of plastic or aluminum.

The working principle of this type of capacitor is based on the electrolyte between the plates. Since the plates are polarized, a potential difference is created between the electrodes. This in turn results in a dielectric heating effect due to the attraction and repulsion of ions. The resulting capacitance is proportional to the area of electrodes and inversely proportional to the distance between them. This capacitance is then used to store energy in the form of an electric field in the dielectric material.

In the case of the LQS2G121MELZ30, two aluminum foil electrodes are connected to the two plates, separated by a paper spacer impregnated with a non-aqueous electrolytic solution. The capacitance value is measured in µF and is specified as 20,000uF. The polarizing voltage range is ±18V and has a leakage current of 0.02mA at 85°C. The rest of the features like temperature (to 105°C) and life (1,000 to 6,000 hours) make it suitable for industrial applications.

The LQS2G121MELZ30 is an aluminum electrolytic capacitor and contains the necessary parts for capacitor construction. It is suitable for applications in a wide range of industrial power supplies, inverters, motor drives, HID lighting, UPS applications, TV/audio circuits and many more. The device has a high capacitance and a wide polarizing voltage range, making it suitable for high temperatures and long life, while its rated voltage and leakage current parameters make it suitable for professional applications.

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