UMT1C100MDD

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Aluminum Electrolytic Capacitors

An aluminum electrolytic capacitor is an electronic component made of two aluminum foils separated by a paper or vinyl dielectric material which holds a molecular layer of liquid electrolyte. The aluminum foils have an anodized layer and a charge-carrying electrolyte, while the dielectric material allows the capacitor to store energy when a voltage is applied across it. The electrolyte serves as a medium for the electrons from the aluminum foils to travel, thus forming an electrical bridge between them.

The UMT1C100MDD is one of the most popular aluminum electrolytic capacitors on the market today. It is a classic radial-leaded device, featuring a mylar-insulated copper foil, electrolyte impregnated paper, and anodized aluminum foil. It has a 100mF value, a rated voltage of 25 Volts DC, and a maximum operating temperature of 85°C. The UMT1C100MDD is a great choice for multiple types of applications due to its robust construction, superior performance, and small size.

The UMT1C100MDD is mainly used in applications requiring a capacitor with a high capacitance value and low equivalent series resistance (ESR). Its wide operating temperature range makes it suitable for use in high temperature applications, such as automotive and industrial electronics. It is also suitable for filtering and bypassing applications in radio frequency, audio, and power supply circuits.

UMT1C100MDD Application Field and Working Principle

Applications for the UMT1C100MDD include power supplies for consumer electronics, power factor correction, radio frequency circuits, and automotive and industrial electronics. Its most common use is in filter and bypass circuits, where it provides a low-inductance, low-ESR, high-capacitance component.

The working principle of the UMT1C100MDD is simple. When a voltage is applied across its terminals, electrons are attracted to the anode, forming an electrical bridge with the electrolyte. This bridge carries the electric current and produces the electrical charge stored in the capacitor. The level of stored charge depends on the capacitance value and the voltage applied across the terminals, while the leak current is a function of the dissipation factor (DF) of the component, which can be expressed as the ratio between the stored charge and the capacitance.

The UMT1C100MDD capacitor has a relatively high DF, which means the component can store a large amount of charge compared to its capacitance. Furthermore, the device has a long lifespan and good reliability, with a lifetime of up to 10,000 hours at 70 °C. It also has a wide temperature range, allowing it to be used in high-temperature applications with heat dissipating PCBs.

In conclusion, the UMT1C100MDD is a reliable and affordable aluminum electrolytic capacitor that can be used in a wide range of applications. Its features, including low-ESR, high-capacitance, and low-leakage current, make it an excellent choice for filtering and bypassing circuits.

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