M39003/01-8268H

Tantalum Capacitors

The M39003/01-8268H is a type of tantalum capacitor often used for electronics applications. Generally, tantalum capacitors are capacitors that use tantalum as its electrodes. They offer superior volumetric efficiency than a ceramic or aluminum electrolytic capacitors and other features as well. This particular type of capacitor is great for a wide range of applications, including high-frequency applications and those which require large capacitance values. It is also particularly well-suited for use in military or avionic applications as they are highly reliable, small in size, and have a stable performance even in extreme temperatures.

Application Fields

The application fields of the M39003/01-8268H unique to its construction with tantalum. Tantalum capacitors are mainly used for power electronics applications, such as DC-DC converters, where its long life and reliability are valued, although these capacitors are also suitable for audio applications and for other voltage smoothing application, like coupling and decoupling, as well as for AC coupling application in amplifiers.

The M39003/01-8268H itself is also well-suited for applications where low ESR and high capacitance values are required, like in implantable medical devices or as the main filter capacitor in the power supply line. These capacitors are also suitable for civilian avionics and biological-inspired electronics due to their low leakage values. This makes them highly capable for filtering high-frequency noise.

Working Principle

Unlike aluminum or ceramic capacitors, tantalum capacitors use tantalum as its electrodes. This construction involves an anode made of sintered tantalum powder surrounded by a dielectric material such as manganese dioxide. The capacitance value corresponds to the amount of the dielectric material present and the surface area of the anode. The other electrode, called the cathode, is made of titanium. A small amount of conductive material (such as conductive plastic) contacts the anode and cathode in order for the capacitor to be able to conduct electricity.

To use the M39003/01-8268H, one must connect the two electrodes with wires, a voltage source is applied to one of the electrodes, and the polarity of the applied voltage must also be considered. This will cause a charge to collect on the dielectric and create a potential difference between the electrodes, a phenomenon known as capacitance. The capacitance of the M39003/01-8268H can be controlled either through the dielectric material or the surface area of the anode.

Conclusion

The M39003/01-8268H is an example of a tantalum capacitor. It is excellent for medium current applications, audio applications, and military and avionic applications, as well as a wide range of other applications. Its capacitance value can be controlled by either the amount of dielectric material present or by the surface area of the anode. Its electrodes are made of tantalum and titanium, and it is connected to an external voltage source for operation.