Tantalum Capacitors - M39003/03-0266 Application Field and Working Principle

Tantalum capacitors are some of the most widely used type of capacitor, typically found in phones, computers, video game consoles, and many other electronics. The M39003/03-0266 is one such example. It is an annular solid tantalum capacitor, also known as a bead capacitor, of the surface mount type.

Application Field

The M39003/03-0266 is a high-capacitance, low-cost capacitor that is widely used in consumer electronics, and other general purpose applications. It has an operating temperature range of -55°C to +125°C. It is also RoHS compliant, and is often referred to by its JEDEC standard number, TAJAD002. The capacitor is made of solid tantalum, and features built-in overload protection to protect from shorts and overvoltage. The capacitor also has a low self-discharge rate, making it suitable for use in electronic equipment such as cameras, phones, and tablets.

Working Principle

Tantalum capacitors are polarized capacitors. This means that they must be connected with the correct polarity in order to work. It is made up of two layers of tantalum, an anode, and a cathode. The anode is connected to the positive side of an electric circuit, and the cathode is connected to the negative side. Between the two layers of tantalum is a dielectric material, usually an electrolytic solution or oxide. This material acts as an insulator, allowing an electric current to pass through the electric field created, but not between the plates. The capacitor stores energy in the form of an electric field, and is able to release it when the capacitor is discharged.

The capacitance of the M39003/03-0266 is determined by the surface area of the two plates and the thickness of the dielectric layer in between. The capacitance is also affected by the type of dielectric material used. The higher the capacitance of the capacitor, the more energy it is able to store. This means that the M39003/03-0266 can store a large amount of energy in a small device.

Conclusion

The M39003/03-0266 is a high-capacitance, low-cost capacitor that is widely used in consumer electronics and other general purpose applications. It is an annular solid tantalum capacitor, also known as a bead capacitor, of the surface mount type. It has an operating temperature range of -55°C to +125°C and is RoHS compliant. The capacitor stores energy in the form of an electric field, and is able to release it when the capacitor is discharged. The capacitance of the capacitor is determined by the surface area of the two plates and the thickness of the dielectric layer in between.