M39003/09-0349/TR

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Tantalum capacitors are a type of electrolytic capacitor that possess extremely high capacitance values in relation to their small size. They have the advantages of low equivalent series resistance (ESR) and low leakage current. By comparison, tantalum capacitors provide higher capacitance values in a much smaller footprint than most other types of capacitors. To this end, they are widely used in a variety of applications and industries. The M39003/09-0349/TR is a specialized tantalum capacitor that is specifically designed for low-noise switching applications.

The M39003/09-0349/TR is a polarized capacitor, meaning it has a positive and negative side, and features a tab to indicate the device’s polarity. It is typically available with a capacitance value of 0.039uF and a working voltage of 10V. Additionally, the capacitor can be provided with other capacitance values ranging from 0.002uF to 0.2uF and with working voltages ranging from 5V to 25V depending on the needs of the application. One of the key benefits of this device is that it offers a low Equivalent Series Resistance (ESR) of 0.8 Ohms, as well as low leakage current of 0.3mA max. The M39003/09-0349/TR has a maximum temperature of 85°C and an operating temperature range of -55°C to +85°C.

Tantalum capacitors are polarized, meaning they have an anode and a cathode. A layered oxide on the anode provides the capacitance value and is formed when the oxide is reacted with the metal housed inside the capacitor. It is this reaction that creates the dielectric between the two terminals of the device, effectively making it a “capacitor.” Voltage is applied to the capacitor, causing the oxide to break down and the capacitor to generate its capacitance value. Anode and cathode materials, specifically the materials that make up the oxide layer, determine the device’s capacitance, ESR, and leakage current. With the M39003/09-0349/TR, the oxide layer is composed of tantalum pentoxide, which helps to provide the device’s low off-state leakage current and low ESR.

Due to its high capacitance value and low ESR, the M39003/09-0349/TR is well suited for noise suppression applications in power circuits and DC-DC converters. It can also be used in automotive and communications applications such as voltage regulators, UPS systems, and telecoms equipment. The device’s low ESR helps filter out high frequency and low frequency harmonics, while its low off-state leakage current helps reduce the risk of voltage depletion over time.

The M39003/09-0349/TR is a versatile and reliable tantalum capacitor that is well suited for a wide range of applications. Its high capacitance value, low ESR, and low leakage current make the device ideal for low-noise switching applications in automotive, communications, and power circuits. The device’s robust construction ensures long-term reliable operation in tough operating environments.

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