M39003/01-2839/HSD

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Tantalum capacitors are widely used in electronics due to their advantages of high capacitance and small size. The M39003/01-2839/HSD series capacitor is a popular device in this regard. In this article, we will discuss the application field and working principle of this tantalum capacitor.

The M39003/01-2839/HSD is a solid tantalum surface-mount capacitor with axial leads, perfect for use in hybrid circuits, surface-mount applications, and in power supplies. The capacitor is rated for a maximum working voltage of 25 V and can handle temperatures from -55°C to +125°C. It offers low ESR (equivalent series resistance), ESR going down with capacity, and an X7R temperature characteristic, capable of withstanding mechanical shock, vibration, and other harsh environments.

The capacitor\'s construction consists of a tantalum anode, a titania-based solid electrolyte encapsulated in a conductive epoxy resin. The anode and its surface-mount terminations are connected to the inner titanium oxide electrodes, and an external titanium metal layer that provides both physical insulation and an extra layer of electrical protection against short circuits. The titanium metal layer is further covered by a hermetically sealed aluminium case.

The specific working principle of the M39003/01-2839/HSD capacitor combines the principles of electrolytic and electrostatic capacitors. Tantalum capacitors are formed by adding a highly resistive tantalum anode to an electrolytic solution. This electrolytic solution makes the anode highly conductive, allowing electrons to flow through it. The electrons are then attracted to an external titanium-based electrode, which acts as the capacitor\'s second plate. This creates an electrostatic field between the two. In this way, the capacitor stores energy which can be used for different applications.

In summary, the M39003/01-2839/HSD capacitor is a high-performing Tantalum capacitor that can resist temperatures of -55°C to +125°C. It features a titania-based solid electrolyte encapsulated in a conductive epoxy resin and an external titanium metal layer. The working principle of the device combines the principles of electrolytic and electrostatic capacitors and allows it to store energy for different applications. It is therefore an ideal choice for surface-mount applications, hybrid circuits and power supplies.

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