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Aluminum Electrolytic Capacitors

An aluminum electrolytic capacitor is a type of capacitor that typically uses an aluminum oxide capping layer and two aluminum foils as its electrodes. The capacitor utilizes a larger electrolytic anode and a thinner electrolytic cathode foil. The thin electrolyte cathode is often insulated with a polymer compound such as polyethylene or polyphenylene oxide and offers low leakage or hourglass-shaped capacitance characteristics. Depending on the application, the thickness of the oxide film and the shape of the electrolytic anode vary.

UPM1V390MED1TA Application Field and Working Principle

The UPM1V390MED1TA is an aluminum electrolytic radial lead capacitor designed primarily for applications that require a higher capacitance and higher ripple current than a standard aluminum electrolytic capacitor. It is suitable for products that require small capacitance and high temperature resistance and provides superior performance in applications requiring high ripple currents, making it ideal for switch mode power supplies, DC/DC converters, and solar energy performance.

The UPM1V390MED1TA is designed with a three-section construction consisting of a thick anode, a thin dielectric film, and a thin aluminum cathode, with a triple lead assembly that provides low EMI radiation and improved heat dissipation. It has a radial lead construction with 4mm Thread Pitch and is suitable for high-temperature smd processing and mass flux soldering.

The maximum rated temperature of the UPM1V390MED1TA is 125°C and it has a rated capacitance range of 10μF to 330μF and a rated voltage of 16V to 100V. Its operating temperature range is -40°C to +125°C. The capacitance tolerance of this aluminum electrolytic capacitor is ± 20% to ± 100%. Its low ESR reduces inrush current consumption and ripple current at high frequency.

The UPM1V390MED1TA can also be used in applications like snubber, filtering, and coupling. In snubber circuits, it is used in combination with another device to suppress the voltage spikes on the output of a switching waveform, resulting in a smooth waveform with minimized energy losses. It is also useful in application having high-frequency filters as its larger capacitance value, low ESR, and low impedance lowers the voltage fluctuation for smooth current transmission.

In addition, the UPM1V390MED1TA can also be used in coupling circuits where the capacitance in conjunction with a resistor couples the output signal to the next stage. The combination of these two components forms a low-pass filter network, which can be used to filter out high-frequency signals.

Overall, the UPM1V390MED1TA is an ideal solution for high capacitance, high efficiency, and high temperature resistance applications. Its triple lead assembly, low ESR, and wide capacitance range allow for efficient current and voltage transmission in power supplies, solar, and other applications.

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