Dilshaad
Dilshaad Content Marketer
On Mar 12, 2025

Electronic circuits require reliable and high-performance components to ensure stability and efficiency. One such essential component is the aluminum electrolytic capacitor, which is widely used for power supply filtering, signal coupling, and decoupling in various electronic applications. Among the many options available, the Panasonic ECA-1CM471BJ stands out due to its robust performance, high reliability, and compact design. We will explore the specifications, features, applications, and circuit implementations of this capacitor.

Overview of the Panasonic ECA-1CM471BJ

The Panasonic ECA-1CM471BJ is a radial leaded aluminum electrolytic capacitor from the M Series. It is designed to provide efficient power filtering, ensuring smooth electrical operation in various electronic devices. The capacitor is particularly suited for applications requiring a stable and long-lasting power supply.

Key Specifications:

  • Capacitance: 470µF

  • Voltage Rating: 16V

  • Tolerance: ±20%

  • Operating Temperature: -40°C to +85°C

  • Endurance: 2000 hours at 85°C

  • Low Equivalent Series Resistance (ESR)

  • Radial Leaded Design

Key Features:

1. Reliable and long-lasting performance
2. High ripple current handling
3. Stable capacitance over varying temperatures
4. Compact radial lead design for easy PCB mounting
5. Ideal for power supply and audio applications

Applications of the ECA-1CM471BJ Capacitor

This capacitor is widely used in numerous applications due to its superior electrical characteristics. Below are some of the key areas where it is commonly employed:

1. Power Supply Filtering

Aluminum electrolytic capacitors like the ECA-1CM471BJ are essential for power supply circuits. They help smooth out voltage fluctuations and eliminate ripples, providing a stable DC voltage to sensitive electronic components.

2. Audio Amplifiers

In audio applications, this capacitor is used as a coupling capacitor, blocking DC signals while allowing AC signals to pass through. This helps maintain sound clarity in amplifier circuits.

3. Digital Circuit Decoupling

Microcontrollers, processors, and digital circuits require decoupling capacitors to minimize noise and maintain stable voltage levels. The ECA-1CM471BJ is highly effective in this role.

4. Industrial Electronics

Industrial machines and automation systems rely on stable power supplies. This capacitor is ideal for use in industrial-grade power management circuits.

5. Consumer Electronics

From televisions and home appliances to battery chargers and LED drivers, this capacitor finds its place in various consumer electronic products.

Circuit Diagram for Power Supply Filtering

Below is a simple power supply filtering circuit using the ECA-1CM471BJ capacitor:

Components Required:

Circuit Explanation:

  1. AC voltage from the transformer is converted into DC using a bridge rectifier.

  2. The ECA-1CM471BJ capacitor smooths out the rectified DC signal, reducing voltage ripples.

  3. A voltage regulator (LM7812) ensures a steady 12V DC output.

  4. The load (LED, motor, or microcontroller) receives a stable voltage.

Use Case Scenario: Audio Amplifier Circuit

The ECA-1CM471BJ capacitor plays a crucial role in audio amplifier circuits by blocking unwanted DC components. Below is an example circuit:

Components Required:

  • Audio Signal Source (Microphone or AUX Input)

  • Operational Amplifier (LM386)

  • Panasonic ECA-1CM471BJ Capacitor (470µF, 16V)

  • Speaker (8O, 1W)

Working Principle:

  • The capacitor is placed between the amplifier output and the speaker to block DC and pass AC signals.

  • It helps in delivering clear and undistorted audio output.

How to Buy the ECA-1CM471BJ Capacitor?

The Panasonic ECA-1CM471BJ capacitor is available through Xon Electronics online distributors globally.

Downloading the Panasonic ECA-1CM471BJ Datasheet

For a detailed technical analysis, including electrical characteristics and mechanical dimensions, you can download the official datasheet from the Panasonic website or distributor platforms such as Digi-Key and Mouser.

Conclusion

The Panasonic ECA-1CM471BJ Aluminum Electrolytic Capacitor is an excellent choice for engineers and designers working on power supplies, audio systems, and industrial electronics. With high capacitance, low ESR, and excellent reliability, it ensures stable and efficient circuit operation. Whether you are designing a power filtering circuit, an audio amplifier, or an industrial power management system, this capacitor delivers superior performance.

For those looking to integrate high-quality capacitors into their designs, the ECA-1CM471BJ is readily available worldwide. Don’t forget to check the datasheet for additional technical details and circuit recommendations!

FAQs about Panasonic ECA-1CM471BJ Aluminum Electrolytic Capacitor

1. What is the Panasonic ECA-1CM471BJ capacitor?

The ECA-1CM471BJ is an aluminum electrolytic capacitor from Panasonic’s M Series, featuring a 470µF capacitance, 16V rating, and an 85°C operating temperature. It is a radial leaded capacitor designed for various electronic applications.

2. What are the key features of the ECA-1CM471BJ capacitor?

  • Capacitance: 470µF
  • Voltage Rating: 16V
  • Tolerance: ±20%
  • Operating Temperature: -40°C to +85°C
  • Endurance: 2000 hours at 85°C
  • Low ESR for stable performance

3. Where is the ECA-1CM471BJ capacitor used?

This capacitor is widely used in:

  • Power supply filtering
  • Audio amplifier coupling
  • Digital circuit decoupling
  • Industrial electronic applications
  • Consumer electronics

4. How does the ECA-1CM471BJ help in power supply circuits?

It smooths out voltage fluctuations and reduces ripple, ensuring a stable DC voltage output in power supply designs.

5. Can the ECA-1CM471BJ be used in audio applications?

Yes, it is commonly used as a coupling capacitor in audio circuits to block DC and allow AC signals to pass through without distortion.

6. Where can I buy the Panasonic ECA-1CM471BJ capacitor?

This capacitor is available through leading distributors worldwide, including Xon Electronics in the USA, India, Australia, and Europe.

7. How do I download the ECA-1CM471BJ datasheet?

You can download the official datasheet from Panasonic’s website or leading distributor platforms like Digi-Key and Mouser.

8. What is the lifespan of the ECA-1CM471BJ capacitor?

It has an endurance rating of 2000 hours at 85°C, ensuring long-lasting performance in various applications.

9. How do I design a circuit using the ECA-1CM471BJ?

This capacitor can be used in power supply filtering, amplifier circuits, and decoupling applications. Detailed circuit diagrams and use-case scenarios are provided in technical documentation and application notes.

10. Is the ECA-1CM471BJ suitable for industrial applications?

Yes, due to its reliable performance and durability, it is widely used in industrial and commercial electronic systems.


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