TR3A685K020C2600

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Tantalum capacitors are widely used in a variety of electronic circuits and have found numerous applications, ranging from aerospace and defense, to consumer and industrial electronics. The TR3A685K020C2600 is a polymeric monopolar High Ripple Current Part, one of the most popular types of tantalum capacitors.

Unlike an electrolytic capacitor, a tantalum capacitor does not contain any electrolyte, and instead relies on the dielectric between the anode and the cathode plates and a conductive polymer layer to function. The electrodes are made of Tantalum metal, giving the capacitor its name, while the dielectric layer is made of either a solid polymer, or a porous form of Ta2O5 (tantalum pentoxide) dielectric.

The TR3A685K020C2600 is designed for high frequency, high-power applications and has a low ESR (equivalent series resistance) and low ESL (equivalent series inductance) for improved performance. It is designed for permanent and reliable operation, with a insulation element that can withstand an active biased continuous DC voltage up to 16 V, and ripple current up to 5 A. The capacitor also maintains a high capacitance and a low RMS current at over 85K Hz, making it suitable for use in 7th order filters.

The working principle of the capacitor is very straightforward, as a current is applied between the electrodes, charges, of opposite polarities, accumulate on the plates. This charge separation creates an electric field between the plates, causing an opposing force, at a particular frequency. This creates a voltage across the capacitor which is proportional to the applied frequency. The capacitance then acts as a barrier, allowing only the alternating current to pass. The higher the capacitance, the higher the frequency can be filtered.

The TR3A685K020C2600 capacitor is well-suited for aggressive applications due to its high ripple current and high voltage capability, making it an ideal choice for smoothing circuits, timer circuits, power supply filters and high-frequency switching applications. The capacitor also has a wide temperature range of -55 °C to +125 °C, making it suitable for automotive and avionics applications. Furthermore, the compact size of the TR3A685K020C2600 capacitor makes it easy to use in board-mounted designs, and it is easily packaged for use with standard connectors and harnesses.

In summary, the TR3A685K020C2600 capacitor is an ideal choice for many high-frequency applications due to its low ESR and low ESL, high ripple current and high voltage capability, wide temperature range, and compact size. It is an excellent capacitor to use in high-power switching applications, smoothing circuits, timer circuits, and power supply filters.

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