Tantalum Capacitors

Tantalum capacitors have become an indispensable component in modern electronic circuits due to their excellent electrical and thermal characteristics, and their small size. Tantalum capacitors combine the good characteristics of electrolytic capacitors and ceramic capacitors. The M39003/03-0422/HSD series of tantalum capacitors is a popular type of solid electrolytic capacitor designed to meet military requirements for high reliability applications. This type of capacitor provides a combination of high capacitance, low impedance, and high volumetric efficiency.

Application Field of M39003/03-0422/HSD

The M39003/03-0422/HSD solid electrolytic capacitor series is ideal for military applications that require high reliability and excellent performance. Due to its extreme temperature range of -55°C to +125°C and wide frequency range, it is widely used in aircraft, avionics, space electronics and other military projects. The cylindrical surface-mount tantalum capacitors of this series are also suitable for portable electronic devices such as mobile phones, personal digital assistants, hands-free kits and laptop computers.

Working Principle of M39003/03-0422/HSD

The working principle of the M39003/03-0422/HSD series tantalum capacitors is similar to that of other electrolytic capacitors. The core of the capacitor consists of two opposing electrodes, an anode and a cathode, which are separated by an electrolyte. The anode is made of a tantalum wire coated with conductive manganese dioxide. The cathode is a porous layer of activated charcoal as the electrolyte.

When an electric field is applied to the electrodes, the electrolyte breaks down, forming a thin electrolytic bridge between the anode and the cathode. This bridge allows charge to accumulate on the anode and create a capacitance. The size of this capacitance is usually in the range of 0.001 to 100,000 μF. The performance of the capacitor is determined by its construction, electrolyte, and materials used in the electrodes.

The M39003/03-0422/HSD series of tantalum capacitors is characterized by excellent stability over a wide temperature range, high thermal capacitance, high volumetric efficiency and a wide frequency range. These characteristics make it an ideal choice for military applications that require superior performance.