Tantalum capacitors are popular components in electronic circuits due to their amazing capability for storing charge, high tolerance to temperature and humidity and ability to be used in a wide range of applications. The M39003/09-0262 has a special distinction among these types of capacitors as it offers a much higher voltage rating than typical tantalum capacitors and is widely used in military, aerospace and medical electronics applications.

The M39003/09-0262 is a type of MnO2 semiconductor capacitors, so-called solid electrolytic tantalum capacitors, that belong to the broader family of “tantalum” capacitors, which are themselves electrolytic capacitors. These capacitors are very reliable and safe components and present the advantage of high-resistance to hazardous operating conditions. The M39003/09-0262 application field and working principle are defined by the nature of MnO2 capacitors and the properties of the capacitor material.

The M39003/09-0262 has an anode made of a highly conductive and stable oxide layer of manganese dioxide (MnO2) deposited on a conductive substrate. This oxide layer is in contact with the electrolyte, typically a solution of organic solvent with a certain amount of salts dissolved. The solvent provides the dielectric insulation for the capacitor, while the ions from the electrolyte act as a conduction carrier between the anode and the cathode. The cathode of the M39003/09-0262 is made of tantalum, hence the name of this component, and is in contact with the electrolyte solution of organic solvent and salts. The tantalum component acts as an absorbent material that absorbs the electrolyte solution in case of capacitance change. When a voltage is applied to the capacitors, the anode and the cathode becomes positively and negatively charged due to the concentration of the electrochemical potential, which causes current to flow through the capacitor, thus resulting in a capacitance change.

The M39003/09-0262 presents the advantage of a higher voltage rating, compared to other types of tantalum capacitors, which makes it particularly suitable for military and medical electronics applications, where it can be exposed to extreme conditions. Its temperature range is between -55℃ and +105℃, and it has a high capacity for charge storage up to 10µF. The working voltage range of this type of capacitor is from 15V to 75V, which is much higher than typical tantalum capacitors.

To summarise, the M39003/09-0262 is a type of MnO2 semiconductor capacitors, of the broader tantam family. Its working principle is defined by the properties of its components and its application fields are defined by its high voltage rating. It presents the advantage of extreme tolerance to temperature and humidity, as well as a high charge storage capacity of up to 10µF. This makes the M39003/09-0262 a reliable and safe component for military, aerospace and medical electronics applications.