The EEFCD0E221XR is an aluminum electrolytic capacitor manufactured by Panasonic. It belongs to the EEF-CD series, known for its low ESR (Equivalent Series Resistance) and long life, making it suitable for various applications requiring stable and reliable performance.

Applications

• Power Supplies: Used as filtering and smoothing capacitors in switching power supplies to reduce ripple voltage and improve stability.
• DC-DC Converters: Employed in DC-DC converters to stabilize the output voltage and reduce noise.
• Audio Amplifiers: Used in audio circuits for coupling and decoupling signals, as well as for power supply filtering to reduce hum and noise.
• LED Lighting: Used in LED driver circuits to smooth the DC voltage and improve the lifespan of the LEDs.
• Industrial Equipment: Found in various industrial electronic devices requiring robust and reliable components.

Features

• Aluminum Electrolytic Construction: Provides high capacitance values in a relatively compact size.
• Low ESR: Minimizes power dissipation and voltage drop across the capacitor, improving efficiency and reducing heat generation.
• Long Life: Designed for extended operational life, ensuring reliability in demanding applications.
• High Ripple Current Capability: Capable of handling significant AC ripple current without degradation.
• Surface Mount Technology (SMT): Enables automated assembly on printed circuit boards.

Benefits

• Improved Efficiency: Low ESR reduces power losses and increases overall circuit efficiency.
• Stable Performance: Provides reliable performance over a wide range of operating conditions.
• Long-Term Reliability: Extended operational life minimizes the need for replacements and reduces maintenance costs.
• Reduced Noise: Effective filtering capabilities help to minimize noise and improve signal quality.
• Compact Size: Allows for integration into space-constrained electronic devices.

Technical Specifications

Specific details can be obtained from the manufacturer's datasheet. However, general specifications include:

• Capacitance: 220 µF (as indicated by 221)
• Voltage Rating: 2.5V (as indicated by 0E)
• Tolerance: ±20%
• ESR (Equivalent Series Resistance): Typically very low for the EEF-CD series
• Operating Temperature Range: -55°C to +105°C
• Case Size: SMD (Surface Mount Device)
• Life Expectancy: Extended life at rated temperature and voltage

The EEFCD0E221XR is a suitable choice for applications requiring low ESR, long life, and reliable performance in a compact surface mount package, particularly in power supplies and other critical circuits.