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Tantalum Capacitors: M39003/01-8360/HSD Application Field and Working Principle

Tantalum capacitors are surface mount capacitors that offer high capacitance and low equivalent series resistance (ESR) for modern high-speed and miniaturized electronic circuits. Generally speaking, low ESR and high capacitance are mutually exclusive. Yet capacitors constructed of tantalum oxide dielectrics provide superior performance and high frequency characteristics that push them to the forefront for high capacitance applications. The M39003/01-8360/HSD devices provide unique features for today’s most challenging circuits.

Overview of the M39003/01-8360/HSD

The M39003/01-8360/HSD is a high capacitance tantalum capacitor designed to withstand high temperature and altitude conditions associated with aerospace and aviation. It is rated to operate from -55°C up to +125°C and can be used in high-reliability applications. The device package is a hermetically sealed, two-pin type that allows for through-hole mounting onto a printed circuit board.

The device also offers several enhancements, among them a uniform construction with Pascalloid electrodes and a ceramic monoblock for high reliability. This, combined with low ESR and high vibration resistance, makes the M39003/01-8360/HSD an ideal device for applications requiring high performance and reliability. It is well-suited for use in circuits experiencing temperature cycling, as it has excellent reliability at temperatures exceeding +95°C on a long-term basis.

The Need for High Capacitance Capacitors

Miniaturization of today’s electronic circuits has brought with it the need for compact components that offer high capacitance and low ESR. Many of these applications, including power supplies, RF amplifiers, switching regulators, and resonator circuits, require the use of a high capacitance device that operates at high frequencies. Smaller components are essential for maximizing the performance of these circuits, and the M39003/01-8360/HSD provides an ideal solution.

Due to its construction, the M39003/01-8360/HSD is capable of handling high temperatures and vibration with reliable performance. The patented Pascalloid electrodes are shaped to maximize surface area for electrical contact with the dielectric. This contributes to a high capacitance per unit volume, with low ESR.

Working Principles of Tantalum Capacitors

A tantalum capacitor is composed of a tantalum anode with a dielectric material, such as tantalum oxide, between the anode and the cathode. The dielectric is formed in an anodization process that creates a highly porous material. The charge is stored across the capacitance as an electric field is created between the anode and cathode.

As the voltage across the capacitor increases, the amount of charge stored also increases. The amount of charge stored is proportional to the capacitance of the capacitor, which is determined by the volume of material between the anode and cathode. This capacitance is commonly referred to as the "Farad" and is represented by the symbol F.

Applications of Tantalum Capacitors

The superior performance of the M39003/01-8360/HSD makes it ideal for use in automotive, communications, and aerospace applications. It can be used for filtering RF signals in radios, create oscillators in synthesizers, or to store energy in pulse-forming networks. It can also be used in power supply circuits, resonant circuits, audio amplifiers, and other applications requiring high capacitance and low ESR.

The M39003/01-8360/HSD is an ideal solution for applications such as RF power amplifiers and radio transmitters, where high temperature and vibration resistance are required. Its small size and high performance make it an excellent choice for a broad range of applications.

Conclusion

The M39003/01-8360/HSD tantalum capacitor is a high performance device that provides superior capacitance and low ESR in a compact package. Its unique construction also ensures reliable performance in high temperature and vibration environments. This makes it ideal for use in a wide range of applications, including RF power amplifiers, radio transmitters, power supplies, and resonant circuits.

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