SLP391M400E4P3

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Aluminum electrolytic capacitors are the most commonly used capacitors in modern electronics today. One of the examples of this type of capacitor is the SLP391M400E4P3 – a non-polarized aluminum electrolytic capacitor. It is characterized by its small size, long life, low equivalent series resistance (ESR) and decent ripple current.

SLP391M400E4P3 is widely used in many electronic applications, including power supply, audio equipment, signal circuit, protection circuit, systems frequently subjected to vibration, wireless apparatuses, for military applications and also in automotive electronics.

Basically, aluminum electrolytic capacitors are constructed like an aluminum foil with an insulating oxide layer on the surface coupled to a solid and electrically non-conductive paper separator that serves to store electrical charge in between the two conductors. In the SLP391M400E4P3 type capacitor, the aluminum electrodes are then connected together and to the case. A liquid electrolyte is injected into the package to serve as part of the internal capacitor structure. The SLP391M400E4P3 is also equipped with a nylon sleeve, which provides excellent heat dissipation ability.

In operation, a suitable applied voltage causes a current to flow and charges the Aluminum foil part of the capacitors. The liquid electrolyte chemically changes the conductive property of the Aluminum foil and allow electrons to flow more easily in the entire device. The combination of the two aluminum electrodes, the liquid electrolyte and the semiconductor oxide film, establishes the device as an electrochemical super capacitor.

The SLP391M400E4P3 can operate in temperatures that range from -40 to +85 Celsius, making it especially ideal for temperature-sensitive devices such as automotive electronics. It has a voltage rating of 25V, a capacitance tolerance of ±20 percent, a capacitance range from 220uF to 470uF, and a really low equivalent series resistance (ESR) that allows for the capacitor to lower losses and improve the efficiency. Additionally, the SLP391M400E4P3 has a ripple current performance of 9.5A for a 470uF capacity at 100kHz, a load life of 2000 hours at 85 Celsius, and is UL recognized and grade 1 dielectric.

To sum up, the SLP391M400E4P3 capacitor is a highly useful aluminum electrolytic capacitor. It can be used in a wide range of applications, providing excellent performance, stability, and a long life. Its low equivalent series resistance (ESR) allows for the capacitor to lower losses and improve the efficiency. Moreover, the SLP391M400E4P3 is one of the most effective solutions when you need to work with temperature-sensitive devices.

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