TAJE157K020SNJ

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Tantalum capacitors are one of the most popular types of passive electronic components used in modern devices, and they are hugely important in many applications. TAJE157K020SNJ is a tantalum capacitor manufactured by AVX. It is a bipolar-type device with a maximum current capacity of 3.2A, a maximum ripple current at +85°C of 600mA, and a rated voltage of 20V. In this article, we’ll take a look at the TAJE157K020SNJ application field and working principle.

Tantalum capacitors are widely used in a variety of applications in the electronics industry. In analog and digital circuits, they are often used as decoupling and bypass capacitors, providing local power storage for when the power source is temporarily unavailable. In audio applications, they are commonly used for filtering, phase shifting and noise reduction. In power supplies, tantalum capacitors are used to smooth output voltage and reduce AC ripple voltage. In modern cars, they are used as spark arresters, preventing arcing between spark plugs. The TAJE157K020SNJ is a versatile component, suitable for all these applications and more.

Tantalum capacitors are rated according to their capacitance, maximum working voltage, size, leakage current, lifetime, temperature range and capacitance tolerance.

The TAJE157K020SNJ is a 0.157µF, 20V, polymeric, bipolar, casing-style tantalum capacitor packaged in a much smaller size compared to conventional tantalum capacitors. It has an extremely low ESR (equivalent series resistance) and high ripple current capability, making it suitable for both power supply filtering and decoupling applications.

How does a tantalum capacitor work? A tantalum capacitor is a type of non-polarized electrolytic capacitor. It consists of a tantalum core with two layers of electrodes, one anode and one cathode. A thin, porous layer of tantalum pentoxide (Ta2O5) dielectric material coats the electrodes. When a potential difference is applied to the capacitor, a dielectric polarization effect occurs and charges the electrodes. This leads to a capacitance increase on one side of the capacitor and a decrease on the other side. By changing the voltage, the capacitor can store or release energy.

Tantalum capacitors have a number of advantages over other types of capacitors. They are smaller and can handle higher ripple currents and have lower ESR values compared to aluminum electrolytic capacitors of the same capacitance. They are also highly stable and have low leakage currents, making them more reliable and longer lasting than ceramic capacitors. Furthermore, they are suitable for both military grade and consumer grade applications. The TAJE157K020SNJ tantalum capacitor is a reliable and affordable component, perfect for a wide array of electronic applications.

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