TAJB155K050RNJ

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Tantalum capacitors have long been used in a variety of electronic circuits and applications due to the material\'s low cost, high reliability, and low leakage current. Among the various types of tantalum capacitors, the TAJB155K050RNJ is a surface-mount type with a wrap-around case, widely used in components including decoupling circuits, filter circuits, and protection circuits in mobile phones, digital audio players, and other consumer electronic parts.

The TAJB155K050RNJ is constructed in a wrap-around case and is composed of tantalum oxide-filled electrolyte and P/V (positive-temperature coefficient) film as the electrode, with epoxy resin as the sealant. The rated capacitance range of the TAJB155K050RNJ is 0.47μF to 470μF. The rated maximum voltage range is 4Vdc, 6.3Vdc, 10Vdc, 16Vdc, 25Vdc, and 35Vdc. The operating temperature range is –55°C to +125°C.

The TAJB155K050RNJ has excellent features such as low ESR (equivalent series resistance), low leakage current densities, high CV (capacitance value) for its small size, and high reliability. Due to its excellent performance, it is widely used in filter circuits, protection circuits, and decoupling circuits.

Let\'s look at the working principle of the TAJB155K050RNJ capacitor. The capacitor is constructed in a wrap-around case with tantalum oxide-filled electrolyte, P/V film, and epoxy resin as the sealant. When the capacitor is connected, the negative electrode is connected to the case and the positive electrode is connected to external circuitry. A small amount of current flows through the capacitor due to the leakage current characteristics of the P/V film, and the high electric field strength generated by the voltage applied to the capacitor causes electro-chemical reaction in the dielectric material. This reaction stimulates ionic movement and a dielectric material is formed. The dielectric material stores an electrical charge and acts as a capacitance between the two conductive layers, hence the capacitor can store energy.

To conclude, the TAJB155K050RNJ is a surface-mount type of tantalum capacitor with a wrap-around case. It is composed of tantalum oxide electrodes and electric current passes through it due to the leakage current characteristics of the P/V film. Its features are low ESR, low leakage current, high CV for its small size and high reliability, making it suitable for use in filter circuits, protection circuits, and decoupling circuits in consumer electronics. This type of capacitor is cheap to make and provides reliable performance for a long time.

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