M39003/03-3028H

Tantalum capacitors, sometimes referred to as "tang caps", are a popular type of electric double-layer capacitor used in a wide variety of applications. They have become one of the most commonly used capacitor types because of their superior electrical characteristics and wide range of manufacturing capabilities. M39003/03-3028H is a high-quality, tantalum capacitor from Vishay made for general purpose use. This section will discuss M39003/03-3028H application field, its working principle and its features.

Application Field

M39003/03-3028H capacitors can be used in many applications, such as:

• Motor control: These capacitors are often used to control motor speed, smoothing out instabilities in the power supply which can cause motors to sputter or stall unexpectedly.

• Power supplies: By filtering unwanted interference and eliminating noise, M39003/03-3028H capacitors can help power supplies and digital devices run smoothly and efficiently.

• Audio systems: When incorporated into audio systems, these capacitors can help to reduce unwanted noise and acoustical distortion, producing higher fidelity sound.

• LCD displays: These capacitors are often used to reduce power supply noise with LCD displays, thereby improving picture quality.

• AC-DC switching: Used in many DC-to-AC and AC-to-DC conversion applications, these capacitors can help improve power conversion efficiency and reduce noise.

Working Principle

Tantalum capacitors are basically miniature electrolytic capacitors that use a tantalum metal oxide anode and a porous cathode. When a voltage is applied across the two electrodes, the electrical charge of the capacitor depends on the amount of area between the two electrodes. This is similar to a regular capacitor, where the charge is determined by the amount of area between the two plates, but with a tantalum electrolytic capacitor the area between the two plates can vary depending on the amount of current applied.

The anode of a M39003/03-3028H capacitor consists of tantalum pentoxide (Ta2O5). This is a highly conductive substance which allows for high-density, high-efficiency capacitors with relatively low ESR values. The cathode is made of a porous, sintered metal which allows for efficient current flow. Because of the relatively low ESR values, M39003/03-3028H capacitors can be used in applications where very short charging times and high frequency operation is required.

Features

M39003/03-3028H capacitors are some of the smallest and highest-performance tantalum capacitors available. They can handle high current loads and have low ESR values, making them suitable for use in a wide range of applications. These capacitors are available in a range of capacitance values from 5uF to 1000uF. They also have a wide operating temperature range of -55°C to 125°C. Other features of M39003/03-3028H capacitors include:

• High ripple current capabilities.
• High volumetric efficiency.
• High surge current capability.
• Compact size.
• Good solderability.
• High temperature stability.
• Extended life expectancy.