M39003/01-5649A

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Tantalum Capacitors

The M39003 / 01-5649A is a type of capacitor that utilizes tantalum-based material. This capacitor type offers high capacitance values and stability over a wide temperature range. The quality and efficacy of this type of capacitor depend on the purity of the material, as well as the manufacturing process.

Features of the M39003 / 01-5649A

The high capacitance values and low equivalent series resistance (ESR) of a tantalum capacitor make it an ideal choice for applications that require high reliability even over wide temperature range. The capacitor also has a low internal heating element, providing solid reliability even when applying a high ripple current. Typical uses of these capacitors include being applied to DC-to-DC power conversion, output filter applications, and for other general-use purposes.

Composition of the M39003 / 01-5649A

Tantalum capacitors, such as the M39003 / 01-5649A model, are constructed with three main parts. These components include an anode, a cathode, and the dielectric material. The material for the anode is typically one layer of a tantalum pentoxide coating that is applied to the anode surface. The cathode is usually formed with a solid electrolyte sheet, which is then coated with a second layer of tantalum pentoxide. Lastly, the dielectric material is often a layer of tantalum oxide-coated carbon paint.

Working Principle of the M39003 / 01-5649A

The working principle of the M39003 / 01-5649A capacitor is based on the electrochemical double layer that is formed between the anode and the cathode. In this type of capacitor, a voltage applied across the anode-cathode area creates an electric field that causes a separation of positive and negative charges between the two plates. The anode and cathode layers are also separated by an oxide layer that allows the charge separation process to take place. The capacitance value is determined by the surface areas of the anode and cathode, as well as the thickness of the oxide layer.

Application Field of the M39003 / 01-5649A

The M39003 / 01-5649A capacitor is primarily used in DC-to-DC power conversions and output filter applications. In DC-to-DC power conversion, the capacitor is often used as a low-ESR filter in switching converter circuits. It helps to lower the voltage ripple in the conversion process, and also reduces EMI interference. In output filter applications, the capacitor’s high capacitance values and low ESR helps to reduce unwanted high-frequency noise that may enter a circuit.

The Advantages of the M39003 / 01-5649A

Using a tantalum capacitor such as the M39003 / 01-5649A offers several advantages, including its stability over a wide temperature range and its ability to handle large ripple current charges without overheating. Such stability also gives it the ability to retain its original capacitance values, which makes it ideal for applications that require high frequency response. Additionally, the capacitor’s low internal heating element ensures long-term reliability.

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