M39003/09-4070

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Tantalum capacitors are an important type of passive electronic component and a staple in a wide range of applications. The M39003/09-4070 is a type of tantalum capacitors used when a larger capacitance value is required in a small space. This type of capacitor is a high-reliability device suitable for applications up to 105°C operation.

The M39003/09-4070 provides a low-profile, low-impedance design and is available with a maximum capacitance value of 3900 µF. This type of capacitor is suitable for use in any application that requires an ultra-high capacitance rating in an extremely small package. Examples of its application includes high ripple/amplitude current requirements, such as those in power supplies and converters. It can also be used in DC-DC boost converters, buck converters, step-up converters, step-down converters, and other similar circuits.

The M39003/09-4070 is constructed with tantalum foil and an electrolyte dielectric. The anode and cathode layers are bonded together under pressure. The tantalum foil is coated with an oxide film, resulting in extremely high capacitance densities. This, in turn, allows for higher voltage ratings and increased capacitance values in a smaller size.

The working principle of the M39003/09-4070 involves the dielectric being formed between two electrodes. Voltage is applied to the capacitor, and an electric field is created. This causes the dielectric between the anode and cathode to store an electric charge. As current flows through the capacitor, it’s stored in the form of charge and energy.

Once the voltage is removed, the capacitor is said to act as a “memory”, meaning that it can retain the charge for a period of time. This makes it ideal for use in pulsed applications, such as high frequency filtering, power supply bypassing, low frequency noise suppressors, and low-duty-cycle peak load applications.

The M39003/09-4070 is also suitable for replacing tantalum ceramic and electrolytic capacitors in certain applications. It has an effective life of 1,000 hours at +85°C and a maximum voltage rating of 20 volts. Its ESR ratings are also considered to be low, resulting in high reliability and effective operation.

In conclusion, the M39003/09-4070 is a type of tantalum capacitors used when a larger capacitance value is required in a small space. It provides a low-profile, low-impedance design and is suitable for a variety of applications, including high ripple/amplitude current requirements, DC-DC boost converters, buck converters, step-up converters, step-down converters, and other similar circuits. It can also be used to replace tantalum ceramic and electrolytic capacitors in certain applications.

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