47uF 250V Electrolytic Capacitor

The 47uF 250V Electrolytic Capacitor is a specialized type of capacitor that leverages an electrolyte to achieve a larger capacitance than other capacitor types. The electrolyte, a liquid or gel containing a high concentration of ions, is a key component of this device.

? Internal Structure

The internal structure of the 47uF 250V Electrolytic Capacitor is composed of several key components:

• Anode (Positive Electrode): Constructed from aluminum, the anode's surface is coated with an insulating layer of aluminum oxide (Al₂O₃), which functions as the dielectric.
• Dielectric: A thin layer of aluminum oxide with high dielectric strength.
• Cathode (Negative Electrode): A conductive liquid or gel, the electrolyte, which contacts an external conductive layer.
• Separator: An absorbent paper layer saturated with electrolyte, positioned between the anode and cathode.
• Case: The entire structure is housed within a metal cylinder with two leads. A safety vent is typically present on top to prevent explosion.

⚙️ Key Characteristics

The 47uF 250V Electrolytic Capacitor exhibits several important characteristics:

• Capacitance Range: Typically ranges from 0.1 µF to 100,000 µF, indicating high capacity.
• Voltage Rating: Ranges from 6.3V to 450V.
• Polarity: Electrolytic capacitors are polarized. Incorrect connection can lead to leakage, heat, or explosion.
• Frequency Response: Best suited for low to medium frequencies. Not recommended for high-frequency circuits.
• Lifespan: Limited due to electrolyte evaporation, typically lasting 2,000–10,000 hours at 85–105°C.

? Common Applications

The 47uF 250V Electrolytic Capacitor is commonly used in a variety of applications:

• DC voltage filtering in power supplies
• Coupling and decoupling in audio circuits
• Delay circuits in timers
• Energy storage and voltage smoothing

Whether you're an electronics engineer or a hobbyist working with Arduino or Raspberry Pi microcontrollers, this capacitor is an essential component for your projects.