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Tantalum Capacitors

Tantalum capacitors are named after the element Tantalum and are a type of electrolytic capacitors. They operate on the same principle as aluminum electrolytic capacitors but use a tantalum anode in place of the traditional aluminum one.

The capacitor\'s anode consists of a sintered powdered oxide layer of tantalum deposited on the capacitor surface. A cathode is then formed by dipping this anode in a highly electrolyte solution and forming a thin layer of the electrolyte onto the surface. The electrolyte forms an oxide based layer between the two conductive surfaces, known as a dielectric, that provides electrical insulation between the metal plates. This allows the capacitor to store electrical energy.

The M39003/01-8342/TR is a type of aluminum polarized tantalum capacitor. The M39003/01-8342/TR has an industry standard molded body and lead frame for easy assembly, making it ideal for a wide range of applications. This type of capacitor is known for its high volumetric efficiency, high insulation resistance, and small leakage current. It is popular for low-power applications, including inverter applications, AC/DC converters, memory backup, and automotive applications.

Application Field

Tantalum capacitors are widely used in a variety of applications. Some of the most common include:

• Power supplies – Tantalum capacitors are used as main and output capacitors in power supplies and switching power supplies.
• Automotive systems – Tantalum capacitors are popular as automotive application components, such as in starter motor circuits, ECU timing circuits, and low-voltage power supplies.
• Computers – Tantalum capacitors are popular for their low leakage and high reliability, making them ideal for main power supply circuits and low-voltage auxiliary power supplies.
• Medical equipment – Tantalum capacitors are well-suited to medical applications. Their performance is especially important in medical imaging systems, such as MRI machines, where their reliability and consistency are critical.
• Consumer electronics – Tantalum capacitors are commonly used in a wide range of consumer electronics, such as TVs, DVD players, digital cameras, and MP3 players.

The M39003/01-8342/TR is designed for use in multiple applications thanks to its high performance and mechanical robustness. It is a versatile capacitor designed for use in low to medium power applications. One example is its use in DC/DC converters, where the M39003/01-8342/TR is used as a main or output capacitor. It is also popular for use in high efficiency inverter applications.

Working Principles

Tantalum capacitors are Polarized capacitors that require the proper polarity orientation in order to work correctly. The body of the capacitor is labeled with a positive and negative indicator, usually indicated by "+" and "-", respectively. In M39003/01-8342/TR, the negative terminal is indicated by a tapered shaped body. It is important to pay attention to the polarity of the capacitor when connecting it to the circuit.

Tantalum capacitors produce capacitance through the formation of a dielectric layer that is created between an anode and cathode. The dielectric is made of an electrolytic solution and a tantalum oxide layer on the anode. This type of capacitor is polarized, meaning that the positive and negative terminals must be connected in the correct polarities. The M39003/01-8342/TR features a positive terminal marked with a "+" on the body of the capacitor. The negative terminal is marked with a tapered shaped lead.

Tantalum capacitors are known for their high bulk capacitance, meaning that they are able to store a large amount of electrical charge relative to their size. This makes them ideal for a variety of applications. Another advantage of tantalum capacitors is their low leakage current. This feature is especially important in applications that require precise current control. The M39003/01-8342/TR is capable of providing up to 20 mA of leakage current.

Conclusion

Tantalum capacitors are a type of polarized electrolytic capacitors that are widely used in a variety of applications. The M39003/01-8342/TR is a type of aluminum polarized tantalum capacitor that is designed for use in low to medium power applications. It is known for its high volumetric efficiency, high insulation resistance, and low leakage current. It is widely used in automotive systems, power supplies, computers, medical equipment, and consumer electronics applications.

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