173D335X0025VWE3

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Tantalum capacitors are a type of electrolytic capacitor that uses a tantalum material for its anode construction. Specifically, the anode is composed of tantalum powder pressed into a pellet that is sintered and then placed onto a metallic anode plate, which acts as the connection to the case. The cathode is usually an organic material such as manganese dioxide. The version of the tantalum capacitor utilized in most SMD applications is referred to as the polymeric tantalum capacitor. The anode is composed of a conductive polymeric layer that eliminates the sintered tantalum powder pellet of traditional designs. Polymeric tantalum capacitors offer extremely low series inductance, high ripple current values, and better CV (capacitance/voltage) stability than other tantalum capacitor formats.

The model number 173D335X0025VWE3 represents a tantalum capacitor manufactured by Illinois Capacitor, which is also known as ILLINOIS Capacitor. The first three digits refer to the capacitance, which is .33 µF. The fourth letter refers to the voltage rating series, which, in this case, is W, denoting a 25VDC Voltage Rating. The letter E indicates that the tantalum capacitor uses a manganese dioxide cathode. Finally, the number 3 indicates the tolerance of the capacitor, which is ±20%.

The applications of the 173D335X0025VWE3 tantalum capacitor include disk drive power supplies, telecommunications systems, cameras, audio-visual equipment, computers and peripherals, and automotive applications. Due to its high capacitance/voltage ratio and stability in comparison to other capacitors, the 173D335X0025VWE3 is an excellent choice for applications involving power supplies. It is also an ideal choice for smoothing pulses and ripple filtering low-level analog signals.

The working principle behind the 173D335X0025VWE3 is straightforward. When an electrical current is applied, the anode builds up a charge that attracts positive ions from the electrolyte. The ions form a barrier between the anode and the cathode, temporarily stopping the anode from receiving charge. The ions also form an electric field between the anode and the cathode, which allows for the capacitor to store energy.

Tantalum capacitors, such as the 173D335X0025VWE3, offer a variety of advantages, including the ability to attain high capacitance values in smaller footprints, better volumetric efficiency, and greater resistance to electrostatic shock. These capacitors are designed to provide reliable operation up to 25VDC and offer excellent rip current ratings. With their sharp low ESR characteristics, they are an ideal choice for applications involving high-surge/pulse currents.

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