M39003/09-0276/TR

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Tantalum capacitors are widely used as components in electronic equipment for the purpose of energy storage. The main parameters related to their performance are capacitance, rated voltage, temperature coefficient, equivalent series resistance (ESR), and dissipation factor. These characteristics are determined by the type of dielectric used and the form of the component.

The M39003/09-0276/TR is a popular type of tantalum capacitor. It is a miniature version of the larger and more powerful M39003/09-0277/TR series. This type has a breakdown voltage of 10 VDC and a capacitance range of 0.47 nanoFarad (nF) to 4.7 microFarad (uF). The temperature coefficient of the M39003/09-0276/TR is +30 ppm/deg C, which means that the capacitance of the device increases with temperature.

One of the main applications of the M39003/09-0276/TR is in precision analog circuits, where a stable operating current is necessary. It is also used in power supply filtering, signal bypass, and coupling circuits. The good capacitance and ESR values of this device enable it to provide stable and low noise operation without adding excess impedance in the circuit.

The principle of operation of a tantalum capacitor is based on the fact that when a voltage is applied across the electrodes of a dielectric material, an electrical field forms. This field causes electrons to move in a circular motion around the metal atoms that make up the dielectric material. The movement of electrons creates an opposing field, which in turn, creates a charge on the electrodes. This charge eventually builds up and is stored in the capacitor, which is a store of electrical energy.

In the case of the M39003/09-0276/TR, the dielectric material consists of tantalum, which is an oxide based material. It is chosen because it has a low dielectric constant, which allows for higher capacitance ratings and a low ESR value. Furthermore, the device is protected against mechanical shock and vibration, making it suitable for use in rugged environments.

The construction of the M39003/09-0276/TR also plays a role in its operation. The device is packaged in an epoxy case with gold plated contact pins that provide electrical connection to the circuit board. The contacts are designed to ensure low contact resistance, which helps minimize the power losses caused by the device. Furthermore, the contacts are designed so that they minimize the chances of arcing and short circuits.

The M39003/09-0276/TR provides a reliable and cost-effective solution for applications requiring stable power supply filtering, signal bypass, and coupling circuits. Its design makes it suitable for use in both consumer and industrial applications. Its low temperature coefficient ensures that its capacitance remains constant over a temperature range of -55°C to +125°C. This makes it a preferred choice for applications that require high temperature stability.

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