M39003/01-2985H

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Tantalum capacitors are an important part of the electrical engineering industry, providing a highly reliable, yet compact, solution for high capacitance values. The M39003/01-2985H is one such example of a tantalum capacitor, offering an excellent combination of performance and reliability. This article will discuss the application field and working principle of this capacitor.

The M39003/01-2985H is designed for use in a variety of applications, including switching power supplies, audio/video equipment, networking equipment, and more. This capacitor offers a high capacitance value of 85µF in a small package, and is designed to operate at very low temperatures. The capacitor is rated for a maximum DC voltage of 35V, and a maximum DC ripple current of 0.20A. Additionally, it features an extended operating temperature range of -55°C to +125°C, making it ideal for use in harsh environments.

The M39003/01-2985H is a tantalum solid electrolytic capacitor, which is based on the “sandwich” design. The capacitor consists of an anode plate, an oxide layer, and a cathode plate, all of which are encased in a hermetically sealed metal can. The anode plate is made of tantalum metal, and coated with a layer of oxide. The oxide layer acts as an electrolyte and dielectric, allowing for the storage of energy. The cathode plate is made of a metal that reacts with the tantalum oxide, and is surrounded by a mesh of electrically conductive material. This creates an electric field in the capacitor, allowing it to store electrical charge.

When an electrical charge is applied to the M39003/01-2985H, the electric field causes positively charged ions to move towards the cathode plate. This increases the voltage across the capacitor, causing a current to flow. This current will continue to flow until the capacitor is fully charged, at which point the current will stop and the capacitor will remain in its charged state.

When the capacitor is discharged, the opposite happens. The positively charged ions move away from the cathode plate, decreasing the voltage across the capacitor. This causes a current to flow until the capacitor is fully discharged. This process can be repeated many times, allowing the capacitor to retain its charge over the course of its lifetime.

In conclusion, the M39003/01-2985H is a highly reliable and durable tantalum capacitor, ideal for use in a variety of applications. With its extended operating temperature range and high capacitance value, this capacitor can provide reliable performance in even the harshest of environments. Its working principle is based on the “sandwich” design, utilizing a tantalum anode, oxide layer, and metal cathode to store electric charge. This makes the M39003/01-2985H an excellent choice for applications requiring a high capacitance value in a small package.

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