M39003/03-0255H

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Tantalum capacitors have become ubiquitous in electronics due to their high levels of capacitance and reliability. The M39003/03-0255H is a tantalum capacitor used in a variety of critical electronic applications. It features a low ESR and a high ripple current rating. In this article, we will discuss the characteristics of the M39003/03-0255H, its application field and the working principle of a tantalum capacitor.

Overview of the M39003/03-0255H

The M39003/03-0255H is a tantalum electrolytic capacitor with a capacitance range of 0.47 to 360 µF. It is designed to provide a high temperature stability and a low ESR for optimal performance. The ESR is between 0.45 and 2.7 ohms, depending on the capacitance. The capacitor has a maximum working voltage rating of 50 volts and an operating temperature range of -55°C to +125°C.

In terms of physical features, the M39003/03-0255H capacitor has a diameter of 18.2 mm, a round leadless chip form, and is encapsulated in a plastic case. It has a standard radial leaded type with a maximum ripple current rating of 2.27 A/μF. The capacitor is composed of a tantalum anode, a dry cathode material, an electrolyte, and an insulator.

Application Field of the M39003/03-0255H

The M39003/03-0255H is designed for use in critical electronic applications. Due to its low ESR and high ripple current rating, it is an ideal choice for applications that require high reliability and efficient operation, such as:

• Power supplies
• DC-DC converters
• High-frequency bypassing
• Noise filtering
• Signal filtering

The M39003/03-0255H capacitor is also used in small space or high density applications, such as portable electronics. Its small size and low profile make it easy to use in these types of mechanisms.

Working Principle of a Tantalum Capacitor

A tantalum capacitor is a type of electrolytic capacitor that uses an anode of tantalum and a cathode of a dry electrolyte material. It has the highest capacitance density for a given volume and is known for its excellent performance and long life. A tantalum capacitor also has a low equivalent series resistance (ESR).

A tantalum capacitor works on the principle of capacitance, which is the ability of a device to store electrical energy. When a voltage is applied to a capacitor, the anode and cathode become charged and a static electricity field is created between them. This field stores electrical energy, which can be released when the voltage is removed. The magnitude of the energy stored is determined by the capacitance, which is defined as the ratio of charge stored to the applied voltage.

A tantalum capacitor is composed of two plates separated by an insulating layer called a dielectric. The plates are connected to an electrode terminal. When a voltage is applied across the terminals, the anode is attracted to the cathode, and charge accumulates on the capacitor plates. This charge then creates an electric field between the plates. The greater the voltage, the greater the electric field and the more charge that accumulates. When the voltage is removed, the charge on the plates is released, generating an electric current.

The performance of a tantalum capacitor is determined by its capacitance, ESR, and ripple current rating. The capacitance determines the amount of energy that can be stored in the capacitor. The ESR, or equivalent series resistance, determines the capacitor\'s resistance to current flowing through the device. The ripple current rating is a measure of how much current the capacitor can handle before it begins to fail. The M39003/03-0255H tantalum capacitor has a high ESR and ripple current rating, making it a reliable choice for critical electronic applications.

Conclusion

Tantalum capacitors are widely used in electronics due to their high levels of capacitance and reliability. The M39003/03-0255H tantalum capacitor is designed for use in a variety of critical electronic applications. It features a low ESR and a high ripple current rating. The capacitor is composed of a tantalum anode, a dry cathode material, an electrolyte, and an insulator. By understanding its characteristics, application field, and working principle, users can select the best capacitor for their needs.

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