M39003/03-0268/HSD

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Tantalum Capacitors: M39003/03-0268/HSD Application Field and Working Principle

Tantalum capacitors have been widely used in application fields due to their excellent performance. The M39003/03-0268/HSD series of tantalum capacitors from Vishay Intertechnology are especially popular in the market. The M39003/03-0268/HSD series is composed of three different types of capacitors with respective reference numbers of 140-206, 130-307, and 140-208. This series is packaged in both through-hole and surface mount formats.

The M39003/03-0268/HSD series employs the use of manganese dioxide as its dielectric material, which serves as the bridge between the two electrodes inside the capacitor. This specific application field is suitable for those circuits in which both high voltage and high temperature application is present simultaneously.

The working principle of users should be well aware of such kind of capacitors before using because they are much different than the conventional ceramic capacitors or aluminum electrolytic capacitors. When positive voltage is applied to the lead of a tantalum capacitor, an anodic film is created on its surface.

The anodic film is formed by the following reaction: oxygen + metal = metal oxide. This thin film thus forms a dielectric layer between the two electrodes. This enables the capacitor to store a certain amount of electric charge in it. This stored charge however can be discharged only when the ac voltage is higher than the dc voltage.

The M39003/03-0268/HSD series are generally preferred for applications where space is a major constraint. Also, they provide excellent performance and long life span. They are specially designed for use with digital and analog circuits in medical, automotive, aerospace, consumer and industrial applications.

The M39003/03-0268/HSD series are also popular due to their low ESR values (equivalent series resistance). This reduces the stress on the other components in the circuit. These capacitors are also used in pulse-type applications. The rated temperature in the M39003/03-0268/HSD series ranges from 70°C to 150°C.

In addition, the M39003/03-0268/HSD series are compatible with both lead-free and pure tin (Sn-Pb) finish. This makes it ideal for the global market. Also, they are RoHS compliant, and each unit is marked with an identification number on its body.

The M39003/03-0268/HSD series of tantalum capacitors offer various advantages over other types of capacitors such as long life, better stability and low ESR. Due to its high reliability, M39003/03-0268/HSD series capacitors are popularly used in various application fields. It is recommended to check out the detailed specifications of the product before using it.

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