TM3E476M020HBA

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Tantalum capacitors are widely used in all kinds of electronic equipment for their excellent performance in terms of electrical characteristics, temperature stability, environmental adaptability and cost-efficiency. Tantalum capacitors offer large capacitance values in a small package, making them ideal for space-limited applications. The TM3E476M020HBA is a tantalum capacitor series manufactured by Murata that fits a variety of applications.

The TM3E476M020HBA series of tantalum capacitors have a Capacitance rating of 4.7μF and a Voltage rating of 20Vdc. This series consists of polar and non-polar versions and is suitable for use in high temperature conditions up to 100°C due to the low ESR values. The capacitor\'s capacitance is designed to stay stable over a wide range of temperatures. The capacitor\'s body is constructed from moisture-resistant epoxy resin, making it an excellent choice for use in humid environments.

The working principle of a tantalum capacitor is based on a Ta2O5 dielectric layer and two electrodes. The anode is made of sintered tantalum powder coated with a manganese dioxide layer. The cathode is composed of an electroplated layer of silver or palladium. The dielectric layer is formed between the anode and cathode. When an external electric field is applied to the capacitor, electrons travel from the anode to the cathode, resulting in a net charge between the anode and cathode. This results in the generation of an electric field in the capacitor which charges its capacitance.

The TM3E476M020HBA series of tantalum capacitors are suitable for a wide range of DC and pulse applications, including automotive electronics, industrial equipment, consumer electronics, medical devices, and telecommunications. The high capacitance values make them well-suited for applications that require a higher capacitance value, such as for voltage filters or AC line-bypass. Because they are comparatively low in DC leakage current, they are ideal for use in high frequency switching regulators, where maintaining a steady output voltage is critical. In addition, the high temperature stability of this series makes them suitable for use in high temperature environments, such as in automotive electronic systems.

In conclusion, the TM3E476M020HBA series of tantalum capacitors offer an ideal combination of excellent performance, reliability, and cost-efficiency for various applications. With its high temperature stability, low DC leakage and high capacitance values, this series is well-suited for voltage filtering, AC line-bypass, and for use in automotive and industrial electronics.

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