E37X421CPN392MEA5M

Aluminum electrolytic capacitors, often abbreviated to aluminum electrolytes, are a type of capacitors that use an electrolyte to store electrical energy. They are ideal for applications wherein the capacitance should be large, the frequency band should be relatively low, and the ohmic losses should be as low as possible. Aluminum electrolytes are characterized by relatively high capacitance and relatively low equivalent series resistance (ESR).

The E37X421CPN392MEA5M is a specific type of aluminum electrolytic capacitor. It is constructed using a metalized aluminum film with an anodized aluminum foil. The anodized aluminum foil acts as the dielectric material, and the electrolyte acts as the electrolyte material. A distinct feature of this capacitor is its use of three distinct electrolytes, which include a lithium-ion polymer, a polyvinyl alcohol, and a calcium-based electrolyte. By using these three electrolytes, a higher dielectric strength is achieved.

The E37X421CPN392MEA5M is typically used in applications such as small motor control applications, automotive audio systems, and DC-DC converters. It has low equivalent series resistance (ESR), high ripple current capability, and excellent reliability. It is also resistant to wet and cold environments and can operate at temperatures between -40°C and +105°C.

In terms of its working principle, the aluminum electrolytic capacitor stores energy using the combination of an electrostatic and a chemical reaction. The electrostatic reaction occurs when electrons flow between the positive and negative terminals, the former of which is connected to the anodized aluminum foil and the latter of which is connected to the dielectric material. The chemical reaction occurs when the electron flow causes an electrolyte to take on a negative charge. The combination of the two reactions generates an electric field which then generates the capacitance.

The E37X421CPN392MEA5M aluminum electrolytic capacitor is an excellent choice for applications requiring high capacitance, low frequency performance, and low ESR. It performs reliably and can operate in wet and cold environments. Additionally, its distinct combination of three electrolytes provides a high dielectric strength compared to other aluminum electrolytic capacitors.