SPA391M0EB

Aluminum-Polymer capacitors are an essential component for a variety of applications, including power electronics, telecommunications, automotive, and defense. As the technology continues to improve, aluminum-polymer capacitors are increasingly used to increase efficiency and reduce cost. The SPA391M0EB is an example of one such capacitance device which serves as an alternative to the more traditional aluminum electrolytic capacitors.

The SPA391M0EB is a type of aluminum-polymer capacitor. It features a three-terminal press-pack configuration and utilizes a space-saving, high-performance polymer-based electrolyte. Its three-terminal construction allows one terminal to be connected to ground and two others to be connected to the power and signal grounds. This allows the SPA391M0EB to be used in either single-ended or differential capacitor applications. This makes it ideal for use in power supply, DC/DC conversion, and AC ripple suppression circuits.

The SPA391M0EB has a wide temperature range, ranging from -55℃ to +105℃. It also has an operating voltage range of 4.5V to 250V DC and is available in various sizes, such as 0402, 0603, 0805, 1206, and 2010. Furthermore, it is a RoHS compliant device and has a low-ESR (Equivalent Series Resistance) for high-frequency use in applications such as automotive ECUs and other industrial controls.

The electrochemical structure of the SPA391M0EB consists of two electrodes and a dielectric polymer electrolyte. The electrodes serve as the positive and negative terminals and provide the necessary charge to create the capacitance. The electrolyte provides the medium in which the charge carriers can move between the electrodes while maintaining a barrier to prevent charge leakage. This ensures that the capacitance remains stable over time. The dielectric polymer electrolyte also helps to reduce noise and AC ripple in high-frequency applications.

The working principle of the SPA391M0EB is a direct result of its electrochemical design. When a voltage is applied across the capacitor’s terminals, an electric field is created which causes the positive and negative ions in the electrolyte to move towards opposite electrodes. This movement of charge results in an accumulation of positive and negative charges on the respective electrodes, creating a capacitance. The capacitance is proportional to the applied voltage and its size depends on the spacing between the electrodes and the dielectric constant of the electrolyte.

The SPA391M0EB has been designed to provide high-performance and reliable performance in a wide range of applications. It is an ideal choice for use where space is a concern and its low ESR characteristics make it well-suited for high-frequency applications. Its wide temperature range and impregnated construction provide excellent stability over time and its three-terminal press-pack configuration makes it easy to use. As a result, the SPA391M0EB is an ideal choice for use in power electronics, telecommunications, automotive, and defense applications.