M39003/01-2751H

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Tantalum capacitors are capacitors with a tantalum metal oxide layer as the dielectric medium. They have the advantages of large capacity, low equivalent series resistance, good insulation, small size, wide operating temperature range and high reliability. The M39003/01-2751H capacitor is a kind of tantalum capacitor. Its application field and working principle are as follows:

Application field

The M39003/01-2751H is a kind of radial leaded tantalum capacitor, which is widely used in military and aerospace fields due to its high reliability. It is also widely used in TV sets, computers and other household products, as well as in some industrial control and instrumentation equipment, telecommunication equipment, automotive electronics and radar. It is especially applicable for those occasions with high security requirements, high temperatures, high shock and vibration resistance, and high mechanical strength.

Working principle

The M39003/01-2751H is sintered tantalum capacitor with manganese dioxide as the electrode material. It has a cylindrical structure with two leads coming out of the bottom part. It consists of dielectric layer, metal case and capacitor metal substrate. The capacitor metal substrate is made of the tantalum material, which is compacted into a solid cylinder with tin-plated leads. The dielectric layer is formed on the metal case by saturating the dielectric material with a high temperature and pressure. The metal case provides electrical isolation and a seal for the capacitor.

The tantalum capacitor\'s electrical characteristics are determined by the voltage applied by the leads to the tantalum anode material, the dielectric material and the surrounding metal case. When a voltage is applied across the dielectric layer, the dielectric material undergoes permittivity change and the anode material undergoes a displacement current to the case. This displacement current is essentially constant throughout the operating life of the capacitor.

The capacitance of the M39003/01-2751H is affected by several factors, such as applied voltage, operating temperature, temperature coefficients, time constants, and aging effects. The stability of the capacitance over time depends on the frequency of use. If the capacitor is used continuously, the capacitance will gradually decrease over time, while if it is used intermittently, the capacitance will remain constant over time.

In summary, M39003/01-2751H is widely used in military and aerospace fields owing to its high reliability. The working principle of M39003/01-2751H is that a voltage is applied to the dielectric layer, which causes permittivity change and the anode material undergoes a displacement current to the case. The capacitance is affected by applied voltage, operating temperature, temperature coefficients, time constants and aging effects. The stability of the capacitance over time depends on the frequency of use.

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