M39003/09-4012

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Tantalum capacitors are a type of capacitors that use tantalum metal as the anode in an electrolytic capacitor. For capacitance values up to 10 microfarads, tantalum capacitors are superior to both aluminum electrolytic and other types of capacitors. They are very small in size and often used in computers and other electronic equipment, where space is at a premium. M39003/09-4012 is a type of tantalum capacitors. This article will discuss its application field and working principle.

Tantalum capacitors are due to their high volumetric efficiency, low ESR, and excellent temperature characteristics. The volumetric efficiency refers to the amount of capacitance available per unit volume of tantalum powder. Low ESR stands for equivalent series resistance, which is the resistance that is added to the internal resistance of the capacitor due to the contact between the anode and cathode. The lower the ESR the lower the power losses and the higher the capacitor’s frequency response. Lastly, the excellent temperature characteristics means that the capacitance of these capacitors is stable over a wide range of temperatures; when compared to other types of capacitors, such as aluminum electrolytic, the tantalum capacitors have much lower variation in capacitance with temperature.

The M39003/09-4012 type of tantalum capacitor is specifically designed for applications where other types of capacitors are inadequate. Its applications include use in portable radios, cell phones, and other communication devices, as well as computers, automotive electronics, medical and industrial applications where the need for high volumetric efficiency, low ESR, and temperature stability is critical. This type of capacitor offers excellent performance when compared to other types of capacitors used in these applications.

The working principle of a tantalum capacitor is similar to other types of capacitors. It consists of two conducting plates (the anode and cathode), an insulating dielectric, and an electrolyte solution. Current flows from the positive terminal of the capacitor to the negative terminal when a voltage is applied, creating a field of electric flux across the dielectric. This field of electric flux produces an electrical storage capacitance effect.

The M39003/09-4012 tantalum capacitor incorporates a dielectric made of manganese-dioxide (MnO2). This material is the optimal dielectric for this type of capacitor as it has a high breakdown voltage and a low equivalent series resistance (ESR). This MnO2 dielectric is applied using a vacuum process with an oxide layer that increases surface area and improves volumetric efficiency. The electrolyte solution used is a conductive gel that allows the capacitor to operate in a wider temperature range and offers improved leakage characteristics.

The M39003/09-4012 tantalum capacitor is an ideal choice for applications where there are space and temperature restrictions. Its higher volumetric efficiency, low ESR, and excellent temperature characteristics make it an ideal choice for any application requiring high frequency response, low power loss, and high temperature stability.

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