TR3B685M025C1500

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Tantalum Capacitors

Tantalum capacitors (also known as tantalum electrolytic capacitors) are a type of capacitor specifically designed for a range of specialized applications. According to its unique liquid electrolyte and the two mostly-constant anodes which are immersed in a highly conductive dielectric solution, these capacitors offer higher energy storage density, higher stability, and lower leakage current than many other types of capacitors. Combined with their long-term reliability and small size, tantalum capacitors are a great choice for various component applications, such as power supply and filtering, automotive electronics, telecommunications systems, consumer electronics, and more.

TR3B685M025C1500

TR3B685M025C1500 is one of the most popular tantalum capacitors on the market. Its external dimensions are 3.2mm x 5.8mm x 2.5mm, and it offers capacitance ratings from from 1uF to 220uF. Rated at 85°C, the TR3B685M025C1500 capacitor has an operating voltage of 10V or 16V, a maximum voltage of 350VAC, and a maximum ripple current of1.05A.

Application Field

The TR3B685M025C1500 tantalum capacitor is primarily used in harsh environments and is designed to withstand higher temperatures and pressure than regular capacitors. It is ideal for automotive electronics, power supplies, switching power supplies, and other components in motherboards, such as C6 and C7 filters in consumer electronic products.

Working Principle

The heart of a tantalum capacitor is composed of two electrodes immersed in an electrolyte. The anodes are usually composed of tantalum ore or metal which provides the high capacitance, low leakage current, and low equivalent series resistance (ESR). One electrode acts as an anode, which is the positive terminal, and the other electrode acts as a cathode, the negative terminal. When an electric current is applied to the two electrodes, a double electric layer forms that has both a positive and a negative charge. The electric charges accumulate on each plate, creating an electrical field that stores energy.

The capacitance of the TR3B685M025C1500 tantalum capacitor is determined by the size of the two electrodes and the distance between them, as well as the type of electrolyte and dielectric used. When polarized voltage is applied, the electric current will flow through the electrolyte to create a characteristically high-capacitance, low-ESR capacitor.

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