M39003/03-0374

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Tantalum Capacitors

Tantalum capacitors, also known as mainstream capacitor types, are a type of electrolytic capacitors. The metal oxide film used as the anode of the device is formed on the tantalum foil surface by anodizing. It can be divided into wet tantalum capacitors and solid tantalum capacitors. Tantalum capacitors are known as smaller and better cycle life than aluminum electrolytic capacitors and other ceramic capacitors. They have been widely used in audio equipment and military related products, and they are now widely used in low voltage DC-DC converters, computers, mobile communications, medical equipment and other products.

M39003/03-0374 is a tin-plated axial lead tantalum capacitor. Its key features include high reliability, long life and high temperature, which make it an ideal choice for challenging applications in demanding environments. Its surface-mounted hermetic seal construction provides excellent resistance to environmental conditions, including high temperature, humidity, solder reflow, and mechanical shock and vibration. In addition, its high-performance impregnation ensures low and stable ESR and high ripple current capability.

Application Fields

M39003/03-0374 is suitable for a wide range of applications, including hi-fi audio, automotive, defense, aerospace and communication sectors. It is ideal for use in computers, mobile phones, digital cameras and other electronic equipment where high reliability and long life is essential. It is especially suitable for applications requiring thread leakage, vibration and shock absorption, and high temperature range.

Working Principles

Tantalum capacitors work on the same principles as other types of capacitors. In an ideal situation, the current through the capacitor will be composed of two components: a static capacitance C and a time-dependent inductance L. The capacitance is determined by the area and depth of the electrodes, while the inductance L is determined by how close the leads are to each other. When a voltage is applied to the device, charges of equal and opposite polarities accumulate on the plates due to electrostatic attraction and the stored energy is proportional to the voltage and capacitance.

M39003/03-0374 performance is maintained by coating the tantalum base with a thin layer of dielectric material. The dielectric layer is then connected to an aluminum oxide. This combination results in excellent thermal and electrical performance. The capacitor also has a self-healing property, which means that when current passes through the device, it causes dielectric breakdown of some areas, and the dielectric will regenerate itself following the breakdown.

M39003/03-0374 also has a number of features that make it attractive to designers. For example, it has a high resistance to acid and alkali. It has low ESR, which means it can handle higher frequency signals with minimal distortion. And lastly, it has a high voltage handling capability, which makes it suitable for applications in hazardous environments.

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