ELH337M400AS4AA

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Aluminum electrolytic capacitors are widely used in a variety of industrial applications due to their compact size and relatively low cost. ELH337M400AS4AA is one of the most popular types of electrolytic capacitors, and its uses and working principle will be discussed in this article.

The ELH337M400AS4AA is a high-voltage aluminum electrolytic capacitor that is designed for applications where a large capacitance in a small size is required. It is particularly well-suited for high voltage applications such as DC link applications, pulse-width modulation (PWM) applications, and snubber circuits.

The ELH337M400AS4AA is a radial leaded aluminum electrolytic capacitor with a rated voltage of 400V. It has a capacitance of 3.3 μF and a torque of 3 Nm. The maximum operating temperature is 125°C, and the insulation resistance is 100MΩ. The capacitance of the ELH337M400AS4AA is stable over time. It has low equivalent series resistance (ESR), low leakage current, and high ripple current capability.

The ELH337M400AS4AA has a unique construction that is designed to increase its reliability and reduce the chance of failure due to an increase in temperature. The core is composed of a cylindrical aluminum canister, which is coated with activated anodes and dielectric material. This forms a laminated section of anodic and cathodic material, which is then filled with electrolyte and sealed. The electrodes are surrounded by a metallized polyester, which is folded in a spiral shape. This construction provides increased conductivity, improved temperature stability, and creates a self-healing phenomenon when voltages are applied.

The working principle of the ELH337M400AS4AA is simple. The laminated section of anodic and cathodic material absorb the charge from the voltage source, and this is transferred to the electrolyte. The electrical field created when the charge is applied creates an electrostatic attraction between the anode and cathode, which allows the capacitor to store charge. The charge is released when the voltage source is removed, which allows the capacitor to discharge or store energy.

The ELH337M400AS4AA is an ideal component for applications that require high capacitance in a small size. It is also suitable for applications where high temperature stability and low ESR is important. The ELH337M400AS4AA is typically used in DC link applications, pulse-width modulation (PWM) applications, and snubber circuits. It is an effective and reliable solution for these types of applications, and can provide long-term performance and reliability.

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