TAP105M025BRS

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Tantalum Capacitors

Tantalum capacitors are a type of electrolytic capacitors whose dielectric anode is made of a tantalum powder, rather than aluminum as found in aluminum electrolytic capacitors. This makes them more stable and reliable than the regular electrolytic capacitors, making them suitable for use in applications requiring higher reliability such as military, aerospace and medical equipment. The construction of the capacitor is similar to that of a typical electrolytic capacitor, except for the use of tantalum instead of aluminum or other materials.

TAP105M025BRS is a type of tantalum capacitor manufactured by TDK Corporation. It is a medium-sized, molded solid capacitors that is specifically designed for power supply applications. It offers a wide range of capacitance values from 0.005µF to 47µF and high capacitance tolerance, up to ±20%. This makes it ideal for use in circuits that require precision, such as a DC-DC converter or boost converter.

Application Field

The TAP105M025BRS is typically used in applications where high reliability, small size and strong capacitance are required. It’s ideal for either wet or dry applications such as high-speed switching circuits, low power supply circuits and power supply circuits. It is also a good choice for ripple current suppression and filter circuits, due to its wide range of frequency.

In addition, the TAP105M025BRS can be used in a variety of applications that require miniaturization, such as digital cameras, thin LCD displays and mini video equipment. Furthermore, its low leakage current, low ESR and high temperature range makes it an excellent choice for automotive and industrial applications.

Working Principle

The TAP105M025BRS is a type of tantalum capacitor that works on the principle of a self-healing dielectric oxide. This type of oxide is a material that is made up of multiple layers of metal oxide, including an inner circular dielectric layer of Ta2O5, which is what gives the capacitor its high reliability. The inner circular dielectric layer acts as a shield to prevent short circuits and provide the reliable electric performance of the capacitor.

The TAP105M025BRS is designed with two electrode plates connected to the two ends of the dielectric material. The top electrode plate acts as the anode and the bottom one as the cathode. When an electric current is applied, the metal ions from the anode diffuse into the dielectric material, forming a thin electric double layer on the interface of the dielectric. This electric double layer forms a potential difference and thus, a capacitor.

The electric double layer forms a barrier between the two terminals of the capacitor, effectively blocking any additional charge to flow through the capacitor, while still allowing current to flow when the voltage rises above the maximum rated value of the capacitor, this is known as self-healing.

Due to its high reliability, low leakage current, good frequency characteristics and low ESR, the TAP105M025BRS tantalum capacitor is widely used in a variety of power supply applications, such as DC-DC converters and boost converters, ripple current suppression and filter circuits.

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