M39003/09-4080/TR

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Tantalum Capacitors

Tantalum capacitors are widely used in modern electronics due to their small size, low cost, high reliability, and low leakage current. Consisting of an anode surrounded by tantalum pentoxide (Ta2O5) and a cathode connected to a casing, these passive components are commonly used in military, aviation, medical, automotive, and telecommunications applications. The M39003/09-4080/TR is one such tantalum capacitor.

M39003/09-4080/TR Application Field and Working Principle

The M39003/09-4080/TR is a tantalum capacitor used mainly in military and avionic electronic equipment due to its high reliability and small size. It has a capacitance of 0.2uf and can operate up to 20 volts. The M39003/09-4080/TR capacitor is sealed so it does not require any maintenance and is immune from heat. It also has a low profile surface mount package and is RoHS compliant.

The working principle of a tantalum capacitor is the same as that of any dielectric capacitor. The two conductors are separated by a dielectric, usually made from an insulating ceramic, which stores an electric charge when connected to a voltage source. In a tantalum capacitor, the dielectric is made of a thin layer of tantalum pentoxide, which exhibits high dielectric properties. This thin layer of dielectric ensures a high capacitance, meaning it can store more charge.

The anode and cathode of the M39003/09-4080/TR are located within the casing and connected to the external leads with small metal wires. The anode is made of tantalum powder that is sintered to form a porous body that acts as the cathode. The external terminals are connected to the anode and cathode. When the capacitor is connected to a voltage source, electrons move from the negative terminal of the source to the anode, and from the anode to the positive terminal of the source.

This flow of electrons forms an electric field between the anode and cathode, and the dielectric material stores the electric charge. The electric field stored in the M39003/09-4080/TR capacitor affects the voltage of the circuit, thus allowing it to be used to regulate the flow of current in the circuit.

Since the M39003/09-4080/TR does not require any maintenance and is immune from heat, it is widely used in military and avionic applications. Furthermore, its RoHS compliant low profile surface mount package ensures that it can be mounted on a variety of circuit boards.

Advantages of the M39003/09-4080/TR

The M39003/09-4080/TR has several advantages over other capacitors. It has a high reliability due to its hermetically sealed case, enabling it to last longer in harsh environmental conditions. Its small size makes it suitable for use in applications where space is at a premium. In addition, its low cost and low leakage current make the M39003/09-4080/TR an economical option for many applications.

The M39003/09-4080/TR also has a high surge current rating, meaning it can handle high current transients without suffering any damage. This makes it suitable for power supply filtering and other applications where there are considerable changes in the current or voltage levels. It is also capable of handling high temperatures, meaning it is suitable for use in applications that require thermal stability.

Conclusion

The M39003/09-4080/TR is a highly reliable, low cost, small-sized capacitor that is suitable for use in a wide range of military and avionic applications. It has a high capacitance rating, good heat resistance, and a high surge current rating, making it an excellent choice in these applications. Its RoHS compliant low profile surface mount package ensures that it can be used in a variety of circuit boards.

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