M39003/01-2490/TR

Tantalum Capacitors

Tantalum capacitors are a crucial component in a range of applications, from consumer electronics to automotive systems. The M39003/01-2490/TR is an example of a tantalum capacitor, and this article will explain its application field and working principle.

Application Field

The M39003/01-2490/TR is a molded, surface mount tantalum capacitor. This particular type of capacitor is used in circuits with low voltage and low current, which includes audio applications, LED backlighting, driver stages, and power supplies for automotive systems. Its small size also makes it suitable for use in compact R/C circuit applications.

Working Principle

Tantalum capacitors use an oxide layer as an insulator, allowing an electric charge to go through one side of the metal and then back through the other in a process called “impregnation.” This process creates a small gap between the two sides of the metal, and this gap acts as a dielectric. The properties of the dielectric determine the capacitance of the capacitor, which is the measure of its ability to store electric charge. The M39003/01-2490/TR has a capacitance of 0.0047 µF and a working voltage of 4~8VDC.

Tantalum is also ideal for use in oscillators, due to its lightweight and high frequency characteristics. In oscillating circuits, tantalum capacitors are able to absorb a small amount of energy (compared to other materials), but this energy is quickly discharged back into the circuit. The M39003/01-2490/TR is therefore often used in circuits that require a short term burst of power, such as audio amplifiers and LEDs.

The M39003/01-2490/TR is a reliable and versatile component, and is a common choice for a wide range of applications. Its low voltage and low current make it ideal for audio and LED backlighting, and its small size makes it suitable for R/C circuit applications. Its high frequency characteristics also make it suitable for oscillators, and its impressive electrical properties make it reliable for storing and releasing power.