Electrolytic Capacitor 4.7 µF (4.7uF) 25 V ⚡

Electrolytic capacitors are essential electronics components used for energy storage, filtering, and signal coupling/decoupling in power supplies, amplifiers, and mixed-signal circuits. This unit provides a nominal 4.7 µF capacitance with a 25 VDC rating, making it a versatile choice for both Arduino, Raspberry Pi, and other microcontroller projects, as well as professional designs.

Key Features ✅

• Capacitance: 4.7 µF (4.7uF)
• Voltage Rating: 25 VDC
• Type: Polarized electrolytic capacitor (observe polarity)
• Use Cases: Power-supply smoothing, ripple filtering, RC timing, DC blocking, and decoupling
• Ideal for: Prototyping with Arduino, Raspberry Pi, and embedded modules 🧩
• High capacitance-to-volume ratio for effective filtering and energy buffering

Typical Applications 🔌

• Power rails filtering in DC supplies and regulator outputs
• Decoupling near sensors, op-amps, and microcontroller boards
• RC timing networks in analog and mixed-signal circuits
• Signal coupling and DC blocking in audio and amplifier stages
• General-purpose use in electronics modules and development boards

About Electrolytic Capacitors 🧠

Electrolytic capacitors achieve high capacitance by using an electrolyte and a very thin dielectric oxide layer between the anode and cathode. Two common types are:

• Aluminum electrolytic: Oxide-dielectric on aluminum foil with an electrolyte; widely used for power filtering.
• Tantalum electrolytic: Tantalum powder anode with electrolyte and cathode; compact with stable characteristics.

Both types are polarized and are selected based on required voltage, ESR, size, and reliability for the application.

Electrical Notes and Best Practices ⚠️

• Polarity matters: Connect the positive and negative leads correctly. Reverse bias can cause damage or failure.
• Derating: For improved reliability, operate below the maximum voltage rating (e.g., design headroom rather than running at 100% of 25 V).
• ESR and ripple current: For high-ripple supplies, verify ESR and allowable ripple current in the manufacturer’s datasheet.
• Aging and tolerance: Electrolytic values can drift over time; check tolerance and temperature ratings in the datasheet for critical designs.

Specifications 📊

• Capacitance: 4.7µF
• Rated Voltage: 25 VDC
• Dielectric System: Electrolytic (polarized)
• Typical Functions: Filtering, decoupling, coupling, timing
• Use with: Arduino, Raspberry Pi, microcontroller boards, and electronics components/modules
• Datasheet: Refer to the specific manufacturer’s sheet for ESR, ripple current, tolerance, and temperature rating.

What’s in the Box 📦

• 1 × Electrolytic Capacitor 4.7 µF 25 V