UCP2W181MHD

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Aluminum electrolytic capacitors are among the most widely-used types of capacitors in industry. They are often used in power supplies, filtering, and DC-DC conversion applications. The UCP2W181MHD series of aluminum electrolytic capacitors is designed to meet the needs of high power applications. This article provides a detailed overview of the application field and working principle of the UCP2W181MHD series.

Key Features

The UCP2W181MHD series is a range of aluminum electrolytic capacitors developed by TDK-Lambda. It features a new design based on the current W180 series. The main features of the UCP2W181MHD series include:

• High Surge Capability: The UCP2W181MHD series is capable of withstanding up to 600A surge current for 15 seconds.
• High Ripple Current: The UCP2W181MHD offers a high ripple current rating of up to 140A peak.
• Small Size: The UCP2W181MHD has a small size and a low profile for easy installation in tight spaces.
• Extended Operating Temperature Range: The UCP2W181MHD is rated for operation from -55 to +105°C.

Application Field

The UCP2W181MHD is ideal for use in a variety of power supply, filtering, and DC-DC conversion applications. Thanks to its high surge current and ripple current rating, the UCP2W181MHD is capable of handling high-power applications. It is often used in power supplies for computer and telecommunications systems, where it is used to filter and smooth out voltage fluctuations.

The UCP2W181MHD is also used in DC-DC converter circuits, where its low profile makes it ideal for implementation in space-constrained applications. Additionally, the UCP2W181MHD\'s extended temperature range makes it suitable for use in a variety of environments.

Principle of Operation

Aluminum electrolytic capacitors are polarized devices that function using the principle of electrolytic conduction. They consist of two electrodes, an anode and a cathode, which do not make direct contact with each other. Instead, they are insulated from each other by a thin layer of aluminum oxide. The anode is made of aluminum foil that is etched to increase the surface area and provide more contact points for the electrolyte.

In operation, current flows through the electrolyte between the two electrodes. This current causes a buildup of charge on the electrodes, leading to a potential difference across the capacitance. The resulting voltage across the capacitance is known as the plate voltage, and is usually expressed as a proportion of the applied voltage.

The capacitance of aluminum electrolytic capacitors is determined by the surface area of the anode, the thickness of the oxide layer, and the electrolyte used. The UCP2W181MHD series has a capacitance range from 1.5uF to 2.2uF, and a maximum DC voltage rating of 200V.

Conclusion

The UCP2W181MHD series of aluminum electrolytic capacitors offer a compact size and high surge and ripple current ratings, making them ideal for use in a variety of power supply, filtering, and DC-DC conversion applications. The capacitance range of 1.5uF to 2.2uF, and the extended temperature range of -55°C to +105°C, allow for flexibility in design and implementation. The principle of electrolytic conduction forms the basis of the device\'s operation.

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