M39003/01-3158H

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Tantalum capacitors are the most used type of capacitor for applications requiring medium to high capacitance values. As compared to aluminum, ceramic, or film capacitors, tantalum capacitors are much smaller, and offer many advantages over their counterparts. This article will focus on the M39003/01-3158H capacitor, and its application field and working principle.

The M39003/01-3158H is a radial leaded, general-purpose capacitor which is mainly used as a decoupling or bypass capacitor. Its high capacitance and relatively small physical size make it ideal for applications where substantial capacitance is needed, but space is at a premium. It offers an excellent combination of low ESR, low ESL, and high capacitance at the same time.

The M39003/01-3158H is usually found in the range of 10µF to 47µF, with a rated voltage of up to 16V. It is typically constructed of a tantalum anode, an oxide dielectric layer, and a tantalum cathode. The anode and cathode are connected together by a thin film of metal that serves as the electrolyte. This capacitor goes through a rigorous screening and qualification process for quality control to insure it can withstand the harsh environments and conditions they are likely to be subject to.

The working principle of the M39003/01-3158H can be broken down into three separate parts. The first part is the tantalum electrolyte. This is the dielectric between the anode and the cathode. When an electric field is applied, the electrolyte is polarized, causing the capacitance value to change. This is what gives tantalum capacitors their high capacitance values.

The second part of the working principle is the anode itself. This is the plate that is polarized when voltage is applied. The anode is usually made of tantalum foil, which is corrosion-resistant and has a low impedance. When voltage is applied, the metal ions move out of the anode, causing an increase in the capacitance value.

The third part of the working principle of the M39003/01-3158H is the cathode. This is the plate that is negatively charged when the voltage is applied. It is usually made of manganese dioxide, which is also corrosion-resistant and has a low impedance. When voltage is applied, the manganese dioxide ions move out of the anode and into the cathode, which causes an increase in the capacitance value.

In addition to its use as a decoupling and bypass capacitor, the M39003/01-3158H is also suitable for use in many other applications. It is used as a voltage-doubling capacitor in DC-DC converters, and as an energy storage component in pulse-width modulation (PWM) systems. It is also often employed as an AC filter capacitor or as an impedance-matching capacitor in audio and RF circuits.

The M39003/01-3158H is a very versatile capacitor that offers an impressive combination of low ESR, low ESL, and high capacitance. It is often used in decoupling, bypass, voltage-doubling, and energy storage applications in a wide variety of circuit designs. It has a rigorous screening and qualification process to ensure its integrity and suitability for use in harsh environments. And its working principle is based on three main components, the tantalum electrolyte, the anode, and the cathode, which provide the capacitor with its requisite capacitance values.

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