M39003/01-3015/HSD

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Tantalum Capacitors

Tantalum capacitors are widely used in high-density, low-power applications because of their small size and thin profile. Tantalum capacitor construction consists of a sintered tantalum anode pellet, tantalum electrolytic and manganese dioxide electrolyte formation, and anode and cathode connections. These capacitors have different advantages, such as high energy density, low leakage current, and low internal resistance. The most common types of tantalum capacitors used in electronic circuits are the M39003/01-3015/HSD series capacitors.

M39003/01-3015/HSD Application Field and Working Principle

M39003/01-3015/HSD series tantalum capacitors are widely used in consumer and industrial applications requiring high accuracy and low-power solutions. The M39003/01-3015/HSD series capacitors offer a wide range of capacitance values from 22µF to 470µF in a small 2.3mm form factor. This makes them an excellent option for applications such as data and power supplies, timing circuits, high reliability products, and pulse power.

The working principle of the M39003/01-3015/HSD capacitors is based on the chemical reaction between the manganese dioxide electrolyte and the anode. When a voltage is applied to the capacitors, the manganese dioxide electrolyte reacts with the anode and forms a film on the anode. This reaction results in a set amount of charge stored on the anode, producing a capacitance. The capacitance is determined by the size of the anode, the thickness of the film, the type of electrolyte, and other variables.

To maximize the capacitance of the capacitor, the surface area of contact between the anode and the electrolyte must be maximized. To do this, a sintered tantalum anode is used, which is porous and creates a large surface area for the electrolyte to react with. Additionally, the manganese dioxide electrolyte is important in determining the capacitance and performance of the capacitor, as it acts as the dielectric.

M39003/01-3015/HSD series capacitors feature a proprietary construction for enhanced performance and reliability. These capacitors offer low-ESR, which reduces heat generation in the circuit and increases reliability. They also employ a HER-rated cathode, which ensures long-term reliability in high-power applications and a low-leakage current design, which improves stability and accuracy over time.

The M39003/01-3015/HSD capacitors are also resistant to vibration, shock, and extreme temperatures, making them suitable for harsh environments. They also feature a 100% MTBF for ensured reliability, and a rated voltage of up to 20 Vdc. Furthermore, they are RoHS compliant, and are offered in both axial and SMD versions.

The M39003/01-3015/HSD series capacitors from Vishay are highly reliable, long-lasting, cost-effective solutions for a variety of high-precision applications. These capacitors offer high capacitance in a small form factor, low ESR, and high efficiency. Additionally, they have a long-term reliability and low-leakage current design for increased accuracy and stability even over time.

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