M39003/01-6111/HSD

Tantalum Capacitors: M39003/01-6111/HSD Application Field and Working Principle

Tantalum capacitors are a type of capacitors that use tantalum as their anode. They are widely used in a variety of applications, including power supply dc/dc converters, computers, and power management devices.

The M39003/01-6111/HSD range of tantalum capacitors from AVX Corporation is a surface mount through-hole design. These capacitors have a low profile and are designed for high-performance and high-reliability applications. They feature a Monolithic Chip Array (MCA) structure consisting of a high-performance tantalum dielectric material and a specialized sintered-electrode process. This structure provides excellent high-frequency performance and a high capacitance-to-volume ratio.

The M39003/01-6111/HSD range of tantalum capacitors have a voltage rating of 6.3 VDC and are designed for use in consumer electronics such as power supply applications. Their sintered tantalum electrodes provide an excellent low-resistance junction, and their monolithic construction allows for reliable operation over a wide temperature range of -55 °C to +125 °C. They are also RoHS and REACH compliant.

Working Principle

A tantalum capacitor works on the principle of electrochemical storage. A voltage is applied across the two terminals of the capacitor, resulting in electrochemical reactions that cause charge carriers to be temporarily stored in the capacitor dielectric material. These charge carriers are then released when the applied voltage reverses, restoring the capacitor to its original state.

Tantalum capacitors are polarized, so the positive terminal of the capacitor must always be connected to the higher voltage. These capacitors also suffer from a phenomenon known as “anti-polarization,” which refers to the possibility of the electric polarity of the capacitor reversing when it is stored at high temperature for a long period of time. For this reason, Tantalum capacitors are used primarily in applications where reliability and performance over temperature are key requirements.

The M39003/01-6111/HSD capacitors are designed for use in dc/dc power converters with their low ESR and high maximum ripple ratings. The low ESR helps reduce the total power dissipation in the power supply design, while the high maximum ripple ratings allow for higher operating frequencies and provide excellent power supply performance. In addition, their small size and low profile make them ideal for high-density designs.

Conclusion

Tantalum capacitors are widely used in a variety of applications, with the M39003/01-6111/HSD range providing excellent performance in power supply dc/dc converters. These capacitors offer a low-resistance junction for improved power performance, and their monolithic construction provides superior reliability over a wide temperature range. Their low ESR and high maximum ripple ratings make them ideal for high-density power supply applications.