M39003/09-4042H

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Tantalum capacitors are a type of electrochemical capacitor which makes use of a tantalum anode, an electrolyte, and a dielectric in combination. The anode of a tantalum capacitor is made from a single crystal of tantalum, which is sintered with a powdered electrolyte, usually potassium or sodium nitrate. The dielectric, in turn, is usually form of insulating material such as polyester, polypropylene, or ceramic.

The M39003/09-4042H is an axial-lead chip-type tantalum capacitor. It features an 85% to 93% (Dry pack) relative humidity storage temperature rating of −55°C to 85°C. The M39003/09-4042H is a surface mount capacitor and is constructed of a solid tantalum construction with solid manganese dioxide (MnO2) cathode. The cathode rating for the M39003/09-4042H ranges from 2V to 50V, and its capacitance rating ranges from 1.0µF to 680µF.

The working principle of a tantalum capacitor is based on electrochemistry. By applying voltage across the tantalum anode and the cathode, ions in the electrolyte are attracted to the electrodes and an electrical field across the anode and cathode is created. This field causes the electrons to be attracted to the anode and create a charge which is stored in the device. The charge that is stored on the device is proportional to the voltage that is applied.

The M39003/09-4042H is commonly used for decoupling, filtering, and energy storage in many types of electronics applications. Its main characteristics are low ESR (equivalent series resistance), high peak current handling capability, tight capacitance tolerance, and a low dielectric absorption. It can also be used for general purpose frequency filtering, smoothing, and RF signal filtering.

Apart from the applications mentioned above, the M39003/09-4042H also finds use in numerous other applications such as laptop boosted storage, dc-dc converters, down-hole drilling systems, and guidance control systems. It can also be used for low voltage applications in telecommunications and industrial automation systems.

To sum up, the M39003/09-4042H is a surface mount, axial-lead, chip-type tantalum capacitor with low ESR, high peak current handling capability, tight capacitance tolerance, and a low dielectric absorption. It is mainly used for decoupling, filtering, and energy storage in a wide range of electronic applications.

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