4.7µF 400V Electrolytic Capacitor (5 PCS)

The 4.7µF 400V Electrolytic Capacitor (5 PCS) pack contains five high-quality polarized aluminum electrolytic capacitors designed for reliable energy storage, filtering, coupling, decoupling, and voltage stabilization in a wide range of electronic circuits. With a capacitance value of 4.7 microfarads (µF) and a high voltage rating of 400V DC, these capacitors are ideal for high-voltage power supplies, industrial electronics, LED drivers, SMPS circuits, audio equipment, and general-purpose electronic applications.

Electrolytic capacitors play a vital role in maintaining stable circuit operation by storing electrical energy and releasing it when required. They help smooth rectified DC voltages, reduce ripple, suppress electrical noise, stabilize power rails, and improve the overall performance and reliability of electronic systems. Their high capacitance-to-size ratio makes them an excellent choice for circuits requiring efficient energy storage in a compact package.

Manufactured using premium-quality aluminum foil and high-performance electrolyte, these capacitors provide excellent capacitance stability, low leakage current, reliable electrical performance, and long operational life. The durable aluminum casing is clearly marked with polarity indicators to ensure safe and correct installation. Since electrolytic capacitors are polarized components, they must always be connected with the correct polarity to ensure proper operation and prevent damage.

The compact radial lead design allows easy through-hole PCB mounting, making these capacitors suitable for both prototype development and commercial electronic products. They are widely used in switch-mode power supplies (SMPS), LED drivers, AC-DC converters, inverter circuits, UPS systems, industrial control equipment, motor drives, power amplifiers, communication equipment, instrumentation, televisions, monitors, home appliances, battery chargers, embedded systems, and DIY electronics projects.

The 4.7µF 400V Electrolytic Capacitor is also commonly used in electronic repair and maintenance applications where reliable replacement components are required for high-voltage circuits.

Whether you are designing a power supply, repairing industrial equipment, assembling an audio amplifier, or building a custom electronic project, this capacitor pack offers dependable performance, long-term reliability, and excellent electrical characteristics.

Working Principle

An electrolytic capacitor stores electrical energy by creating an electric field between two conductive aluminum plates separated by a thin dielectric oxide layer.

When a DC voltage is applied across the capacitor terminals with the correct polarity, electric charge accumulates on the plates and is stored as electrical energy. During circuit operation, the capacitor charges and discharges as needed, helping to smooth voltage fluctuations, filter unwanted noise, stabilize power supplies, and provide temporary energy during sudden load changes.

Because electrolytic capacitors are polarized, the positive and negative terminals must always be connected correctly. Incorrect polarity may damage the capacitor and reduce its operating life.

Key Features

• Capacitance: 4.7µF

• Voltage rating: 400V DC

• Polarized aluminum electrolytic capacitor

• High-voltage operation

• Excellent energy storage capability

• Low leakage current

• Effective ripple voltage filtering

• Stable electrical performance

• High reliability

• Long service life

• Compact radial lead design

• Easy through-hole PCB mounting

• Clearly marked polarity

• Suitable for power supply filtering and coupling

• Pack of 5 capacitors

Applications

The 4.7µF 400V Electrolytic Capacitor is widely used in:

• Switch-mode power supplies (SMPS)

• AC-DC power supplies

• LED drivers

• High-voltage filtering circuits

• Inverter systems

• UPS systems

• Power amplifiers

• Audio equipment

• Industrial automation

• Motor control circuits

• Battery chargers

• Communication equipment

• Instrumentation

• Television repair

• Monitor repair

• Consumer electronics

• Embedded systems

• PCB prototyping

• Electronic repair and maintenance

• DIY electronics projects

• Educational electronics

• Laboratory equipment

Specifications

• Product Type: Aluminum Electrolytic Capacitor

• Capacitance: 4.7µF

• Rated Voltage: 400V DC

• Capacitor Type: Polarized

• Lead Type: Radial leads

• Mounting Type: Through-hole

• Body Material: Aluminum can with insulated sleeve

• Operating Temperature: Varies by manufacturer

• Quantity: 5 Pieces