M39003/01-5155/TR

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Tantalum Capacitors: M39003/01-5155/TR Application Field and Working Principle

Tantalum capacitors are miniature electronic components that act as temporary energy storage devices. They are the most commonly used of all solid dielectric components in consumer electronics, and are designed to achieve high capacity with relatively small size and low cost. One type of tantalum capacitor, the M39003/01-5155/TR, is a surface mount tantalum capacitor containing a solid electrolyte, end-seal, and combustible organic material that act as an electrical insulation between the capacitor’s anode and cathode.

As the capacitor is charged and discharged, the electrical charge is stored in the anode and cathode materials. The charge passing between the two poles creates an electrical field that corresponds to the charge stored on the capacitor’s plates. As the electrical field increases or decreases, the capacitance of the capacitor increases or decreases, respectively.

Tantalum capacitors are used in a variety of industries where high capacitance and small size are important factors. Common applications include medical and military electronics such as radio receivers and transmitters, digital signal processing equipment, TV broadcast equipment, electronic clocks and timers, automotive electronics, and computer mainframes. They are also used in power supplies, audio amplifiers, digital receivers, and other consumer electronics.

The M39003/01-5155/TR surface mount capacitor is a molded, miniaturized version of the popular, larger base plastic capacitor. It has a 0.13μF (0.13 micro Farad) capacitance rating, 10V DC working voltage, and an environmental temperature rating of -55°C to +85°C. It features a molded-in end seal for protection against arc and high-temperature breakdown. It has an extended service life and is suitable for military and space applications.

Tantalum capacitors such as the M39003/01-5155/TR are constructed with a tantalum anode, a solid electrolyte, and a combustible organic material as an electrical insulator between the anode and cathode. The electrodes are then protected with an outer shell, typically PVC or polycarbonate. The tantalum is a porous material with small cavities that allow the electrolyte to enter, causing a barrier layer film to form between the two electrodes. This film is effectively the capacitor’s dielectric, and as electrical current passes through it, an electrical field is created.

When a voltage is applied, positive ions from the electrolyte migrate to the anode and negative ions to the cathode, and charge is stored in the capacitor. The electric field created by the charge passing between the two poles increases the capacitance of the capacitor, allowing the capacitor to store more electrical charge. This process occurs each time the capacitor is charged and discharged.

Tantalum capacitors are one of the most reliable, versatile, and efficient electrical components. With its wide range of applications, the M39003/01-5155/TR is an excellent example of the miniaturization and portability achieved by utilizing tantalum capacitors in high-technology fields.

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