M39003/09-3034

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Tantalum Capacitors

Tantalum capacitors, also known as tantalum electrolytic capacitors, are capacitors which use a tantalum plate as one of their conducting electrodes. They are among the most common types of capacitors due to their relative stability and small size compared to other types of capacitors. The M39003/09-3034 is a type of tantalum capacitor, and it is designed for general-purpose applications such as audio and power supplies. It has a wide operating temperature range of -55°C to +125°C.

Application Field

The M39003/09-3034 has an extended temperature range and a low ESL (equivalent series inductance) and ESR (equivalent series resistance), making it suitable for a wide range of applications such as:

• High frequency power electronics and switching power supplies.
• Timing and frequency control circuits.
• Smoothing and filtering circuits.
• Memories and buffer circuits.
• Impulse and power supply circuits.

The M39003/09-3034 is also resistant to harsh environmental conditions such as high temperature, humidity, and vibration. This makes it suitable for use in aerospace, automotive, and industrial environments.

Working Principle

Tantalum capacitors essentially work in the same way as other capacitors. Two conductive plates are separated by an insulating material called a dielectric. When a voltage is applied across the two plates, an electric field is created which stores an electric charge in the capacitor. The charge stored in a capacitor is equal to the voltage applied across the plates divided by the capacitance. The capacitance can be calculated by multiplying the surface area of the plates by the dielectric constant of the material used as the dielectric.

In the case of tantalum capacitors, the dielectric material is a solid oxide layer which is formed when the tantalum plates are exposed to oxygen at high temperatures. This oxide layer is an effective insulator, allowing for high voltage ratings and low leakage current. Furthermore, as the oxide layer is very thin, it also has the advantage of being able to store a large amount of charge in a small footprint.

The M39003/09-3034 is a surface-mount tantalum capacitor with anvolumes. It has a cathode marked with the code \'D3\', and an anode marked with the code \'D4\'. The code refers to the polarity of the connections, with the cathode being the negative terminal and the anode being the positive terminal. The internal structure of the capacitor consists of a tantalum plate, an electrolyte, and a polymer housing. The electrolyte is responsible for not only maintaining the electrical connection between the anode and the cathode, but also providing a path for the charges to flow when a voltage is applied. The polymer housing provides mechanical protection as well as insulation.

The M39003/09-3034 has a capacitance of 180μF, a voltage rating of 6.3V, and a temperature range of -55°C to 125°C. It has a long lifetime of 2000 hours at a temperature of 85°C, making it suitable for use in demanding applications. Furthermore, its low ESR and ESL values make it ideal for use in high frequency and switching power supplies. The M39003/09-3034 is also highly reliable, with many applications having the ability to constantly run for several thousand hours without failure.

Overall, the M39003/09-3034 is a highly reliable and versatile type of tantalum capacitor, making it suitable for use in a wide range of applications. Its extended operating temperature range, low ESR and ESL values, and ability to withstand harsh environmental conditions make it an ideal choice for many important circuits.

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