EDK475M050S9DAA

Aluminum electrolytic capacitors are a type of capacitor that utilizes an electrolyte made out of an anodized aluminum oxide on the anode and a cathode material to create a porous layer between them. This provides the infrastructure for a wide range of possible capacitance values depending on the electrolyte layer composition. Such capacitors offer high capacitance values in small physical sizes, and are useful in a wide range of low-frequency applications including power supply line filtering, audio frequency filtering, and high-frequency switching circuits.

The EDK475M050S9DAA is a popular aluminum electrolytic capacitor that is used in many applications. It has a capacitance of 475MFD (microfarads) and a working voltage of 50VDC. The EDK475M050S9DAA has a maximum leakage current of 2.7mA, and a rated ripple current of 1200mA @ 105°C. Additionally, it has a low ESR (Equivalent Series Resistance) of 6 mΩ and a low equivalent series inductance (ESL) of 0.3uH. It is designed to operate in temperatures ranging from -40°C to +105°C.

The primary application of the EDK475M050S9DAA is to act as a line filter in power supplies, as its high capacitance and low ESR allow for it to pass high frequency signals with minimal interference. Additionally, the EDK475M050S9DAA is commonly utilized in audio frequency (AF) filtering applications to reduce noise and improve signal clarity. In addition, the low impedance and low ESL of the EDK475M050S9DAA make it an ideal choice for high frequency switching circuits that require precise timing and low power loss due to ESL.

The working principle of the EDK475M050S9DAA is relatively straightforward. When a voltage is applied across the terminals, an electric field is generated that causes the aluminum oxide medium to polarize into both layers. As charges build up on the anode and the cathode, the medium thickens and decreases the distance between them, creating a capacitor. When the applied voltage is removed, the electric field dissipates and the polarization decreases; this reduces the capacitance of the capacitor.

In summary, EDK475M050S9DAA aluminum electrolytic capacitors are useful in many power supply line filtering, audio frequency filtering, and high-frequency switching circuits. Their low equivalent series resistance (ESR) and high capacitance values make them an ideal choice for many applications. Additionally, their working principle is relatively simple, involving the creation of an electric field that polarizes an electrolyte layer to create a capacitor.