M39003/03-0127

Introduction

Tantalum capacitors are most widely used non-metallic electrolytic capacitors. They are available with a wide range of values and thermal stability. Primary applications include telecommunications, consumer electronics, and computer equipment. The M39003/03-0127 capacitors have specific characteristics that make them suitable for general-purpose applications, particularly when used with environmental control systems, and are applicable to the aerospace industry.

Application Fields

The M39003/03-0127 capacitors have high performance in high-temperature and high-voltage applications, with a maximum voltage rating of 50VDC and rated operating temperatures up to +125°C. They offer excellent stability, reliability, and low-dielectric absorption. Consequently, they are well-suited for use in high-frequency applications such as space exploration, lasers, medical equipment, and radar. Used in digital applications, the M39003/03-0127 capacitor provides exceptionally low ESR values.

Moreover, the M39003/03-0127 capacitors are used in applications involving power supply voltages of up to 500VDC and low-frequency inductive or resonant filter applications. They represent a good choice when their electrical characteristics are likely to be affected by temperature changes, due to their high temperature coefficient.

Working Principle

The working principle of a M39003/03-0127 tantalum capacitor is based on the electrical properties of a solid electrolyte material. The capacitor consists of two electroded plates, usually made of aluminum or titanium. The electrolyte is a thin layer of tantalum pentoxide deposited on the plates. A voltage applied across the capacitor causes a flow of current, and the plates become oppositely charged.

The capacitance of a M39003/03-0127 tantalum capacitor is highly dependent on the temperature due to the change in the properties of the solid electrolyte material. At low temperatures, the current flowing through the capacitor is reduced due to the solid electrolyte material having a lower conductivity. As the temperature increases, the current is increased due to the increase in conductivity of the material.

Tantalum capacitors are also known for their long life and low failure rate due to their strong “self-healing” property. When an electrical overload occurs, the oxygen in the tantalum pentoxide reacts with the over current causing a local heating process, which restores the capacitor to its original state.

Conclusion

M39003/03-0127 capacitor is typically used in telecommunications, consumer electronics, and aerospace industry. It is highly suitable for high temperature and high voltage applications. It produces a wide range of values and thermal stability. The M39003/03-0127 capacitors have excellent stability, reliability, and low-dielectric absorption. Furthermore, it exhibits self-healing properties, which makes it hard to fail in sudden overloads. Therefore, this type of capacitor is an ideal choice for a variety of applications.