B43501A3477M007

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are used in a wide variety of industries and applications because of their high capacitance in small package sizes. They consist of two metal foil electrodes, a liquid electrolyte and an aluminum oxide film deposited on one or both electrodes making them ideal for applications where both large amounts of capacitance and small physical size are required. The specific model B43501A3477M007 is specifically designed for use in high temperature environments and for applications where long life and extreme reliability are essential.

B43501A3477M007 Application Field

The B43501A3477M007 aluminum electrolytic capacitor is an ideal capacitor for applications where a long service life and excellent reliability are required under extreme temperature conditions. This capacitor is designed to work in temperatures up to 125°C (257°F) and is suitable for use in power supplies, automotive and industrial electronics. This model capacitor also has high Current Leakage Resistance of 260nA (at +85°C, 4V rated voltage), making it suitable for use in low leakage circuit designs.

B43501A3477M007 Working Principle

An aluminum electrolytic capacitor consists of two rolled foil electrodes which are separated by a liquid electrolyte. A thin film of aluminum oxide is deposited on one or both of the electrodes. This film acts as an insulating layer making the capacitor non-polarized and creating a dielectric between the two electrodes. When a voltage is applied across the two electrodes, a capacitor is formed, and the capacitance is determined by the area of the two electrodes and the dielectric constant of the electrolyte.

In order for aluminum electrolytic capacitors to retain their high capacitance in extreme temperatures, specialized materials and processes must be used. The B43501A3477M007 aluminum electrolytic capacitor is designed to use organic-solution and space grade dielectric materials which increases the temperature stability and provides excellent capacitance values at high operating temperatures. It also utilizes special winding insulation materials and oxidation process which increases the maximum operating temperature and enhances the capacitor’s safety characteristics.

Conclusion

The B43501A3477M007 aluminum electrolytic capacitor is designed and manufactured to provide reliable performance under extreme temperature operating conditions. Its high capacitance values, high current leakage resistance, and superior temperature resistance make it an ideal capacitor for use in low leakage circuit designs, power supplies, automotive and industrial electronics where long life and extreme reliability are essential.

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