M39003/03-0254H

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Tantalum capacitors are a type of electrolytic capacitor, a component of electronics that specializes in storing energy and releasing it as an electrical current. They are constructed of two metal plates or foils which are separated and insulated by a polymer film. A metal oxide layer covers one of the foil plates, and this layer becomes the dielectric for the capacitor. This dielectric is combined with a high-purity tantalum powder which acts as an electrolyte. The main advantage of tantalum capacitors is their very small size yet large capacitance value.

M39003/03-0254H is one of the most popular kinds of tantalum capacitors. It is a type of solid (non-polar) tantalum capacitor which offers high capacitance in a very small size. It is available in a variety of capacitance values between 0.1 µF and 47 µF, with a voltage rating of 16Vdc or 25Vdc to cover a wide range of application. The M39003/03-0254H is lead-free, making it suitable for RoHS compliant applications, and has an operating temperature range of -55°C to +125°C.

The application field of M39003/03-0254H can be find in industries such as communications, computing, consumer electronics, automotive, lighting, medical, and audio systems. They are mainly used in noise and ripple filtering in power supply, voltage division circuits, and resonant circuits.

The internal composition and working principle of the M39003/03-0254H capacitor is the obvious same as other standard capacitor. When voltage is applied to the capacitor, one of the plates will be positively charged while the other negative. This creates an electrostatic field between the plates which stores electrical energy. During this process a tantalum salt is deposited onto the positively charged plate, forming a thin layer that serves as the dielectric medium. Suppressing the flow of current through the capacitor, this dielectric medium allows the capacitor to store an electrical charge.

The removal of voltage will cause a current to pass through the capacitor in the opposite direction. During the reversal of charge, the layer of tantalum salt also reverses polarity. This action of deposition and removal is the major source of current leakage in a tantalum capacitor; the rest will come from the space charge created around the dielectric material over time. The leakage current of M39003/03-0254H capacitor is specified at a maximum of 0.3CV+3uA (55°C). This means the capacitor can easily sustain high energy levels for long periods of time, making it a great choice for many power supply applications.

In conclusion, the M39003/03-0254H is a dependable and cost effective solution for applications requiring a solid state, non-polarized surface mountable capacitor with a small size but capabilities of handling large amount of electrical charge. Its wide application field, electrical characteristics, and cost-effectiveness make it a great choice for power supply design, from communications to automotive industries.

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