ESRD330M08R

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Aluminum-polymer capacitors, also known as aluminum-electrolytic polymer capacitors, are a type of capacitor that uses an aluminum electrode and an electrolytic polymer as the dielectric material. They combine the characteristics of aluminum electrolytic capacitors—such as excellent conductivity and low ESR—with cost-effective and space-saving features. The ESR330M08R is a polymer aluminum capacitor with a manufacturing date code of December 2008 and a rated operational temperature range of –55 to +125°C. It is designed for a wide range of applications, including automotive, data storage, computer, and telecom.

Features

The ESR330M08R features a miniature size and excellent performance. It typically achieves an operating temperature range of –55 to +125°C, a capacitance range of 1.0 to 10uF, and a rated voltage of 10V. It also offers a high rated ripple current and high-frequency characteristics. The capacitor has a low ESR and a fairly high ripple current rating that results in high power and ripple current dissipation even at high temperatures. Furthermore, the device is RoHS compliant and can be used in automotive, telecom, and computer applications.

Structure and Operation

The ESR330M08R is a combination of two thin aluminum layers that are separated by an insulating electrolytic polymer layer. The anode has negative charge, and the cathode has positive charge. The electrolytic polymer helps to reduce the losses due to ionic leakage, allowing the capacitor to maintain very low ESR values as well as high capacitance. The capacitance is determined by the distance between the plates, the area of the electrodes, and the dielectric constant of the polymer.

When an AC voltage is applied to an aluminum-polymer capacitor, current flows from one plate to the other via the polymer layer. The amount of current flowing is determined by the capacitance of the device and the applied voltage. This current is known as the "ripple current." The device also exhibits a small amount of electrical leakage, which is usually expressed as the "leakage current."

Applications

The ESR330M08R is primarily used in automotive, telecom, and computer applications. In automotive applications, the device is typically used to filter engine noise or power line fluctuations that could otherwise affect the system. In telecom applications, the capacitor is used to reduce ringing noise and power line spikes. It is also used in AC/DC power supplies, switching systems, and high-frequency circuits. The device is well suited for applications that require high capacitance, high reliability, and small space requirements.

Conclusion

The ESR330M08R is an aluminum-polymer capacitor with a high capacitance, low ESR, and wide operational temperature range. It is widely used in automotive, telecom, and computer applications due to its high power and ripple current ratings, small size, and excellent reliability. In addition, it is RoHS compliant and meets the stringent requirements for various applications.

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