M39003/01-8217/HSD

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Tantalum Capacitors

Tantalum capacitors are a type of electronic device used to store electrical energy for applications ranging from power supplies to signal treatment, from medical and military equipment to automotive electrical systems. The M39003/01-8217/HSD is a miniature, conformally coated, solid tantalum capacitor designed for electronic and high-reliability applications operating across a wide range of temperatures.

Application Field of M39003/01-8217/HSD

The M39003/01-8217/HSD tantalum capacitor is designed to provide reliable signal attenuation and filtering in a wide variety of temperature ranges and environments. It is ideal for use in airborne, automotive, industrial, and telecommunications applications, as well as medical devices, where reliability is of critical importance. It features low ESR and SPD performance with a wide range of capacitance values, making it an excellent choice for high-frequency applications requiring the highest levels of signal integrity.

Working Principle

Tantalum capacitors consist of an electrolyte of aqueous solution of ammonium pentaborate, usually in the form of a paste. The anode is made of soluble tantalum, while the cathode is usually made of a thin nickel-coated carbon-based material. The electrolyte forms an electrolytic bridge between the two poles and converts the applied voltage into a capacitive charge. In the case of M39003/01-8217/HSD, this capacitive charge is stored for a longer duration, thus providing improved signal integrity in a wide range of temperatures and environments.

The stored electric charge has a capacitance rating. To measure this capacitance, an impedance tester is used. The impedance tester measures the capacitive reactance—the reactance of a capacitor when a sinusoidal AC voltage is applied. This allows the capacitor to be tested over a range of frequencies, giving a measure of the capacitance at different voltages and temperatures, thus giving the designer an understanding of how the capacitor will perform in the intended application.

The electrical behavior of the M39003/01-8217/HSD capacitor is given by its equivalent series resistance (ESR), which indicates the current that can flow through the device during its operation. It also has a voltage coefficient, which is the ratio of the rate of change of capacitance as the voltage changes, enabling the designer to assess the capacitor’s response to voltage changes. Other parameters such as leakage current, temperature coefficient, and insulation resistance can be measured and compared to the manufacturer’s specifications.

Finally, the M39003/01-8217/HSD is designed to be conformally coated, providing the device with further protection against moisture, dust, and other forms of contamination. This helps to extend the lifetime of the capacitor and ensure reliable performance in the intended application.

Conclusion

The M39003/01-8217/HSD is a miniature, conformally coated, solid tantalum capacitor designed for electronic and high-reliability applications operating across a wide range of temperatures. Its low ESR and SPD performance, wide range of capacitance values, and conformal coating make it ideal for a variety of applications whose signal integrity is of critical importance.

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