SMD 4 x 5.4mm Electrolytic Capacitor LCSC Electronics Easy EDA: Compact Solutions for Modern PCB Designs

The smd 4 x 5.4mm electrolytic capacitor lcsc electronics easy eda offers a perfect mix of small size and strong performance. This tiny surface-mount component measures just 4mm in diameter and 5.4mm in height. It fits tight spaces on printed circuit boards (PCBs). Engineers and hobbyists love it for smoothing power supplies, filtering noise, and storing energy in compact devices.

You can find many options for this capacitor on LCSC Electronics, a trusted online store with millions of parts in stock. EasyEDA, a free online PCB design tool, connects directly to LCSC. This link makes it simple to pick parts, design your board, and order everything in one place. Whether you build prototypes or small products, this setup saves time and money.

These images show real examples of the small capacitor on boards and close-up views.

What Makes the SMD 4 x 5.4mm Electrolytic Capacitor Special

Electrolytic capacitors use a special liquid or paste to hold more charge than other types. The SMD version sits flat on the board for easy machine placement. The 4 x 5.4mm size is one of the smallest standard packages for aluminum electrolytic caps.

Common values include:

• 10µF at 16V
• 47µF at 16V
• 100µF at 25V
• Up to 220µF in some series

These parts handle temperatures up to 105°C and last 1,000 to 2,000 hours under full load. They have polarity, so you must connect the positive and negative sides correctly. A stripe marks the negative side.

Brands like Honor Elec, ROQANG, Panasonic, and ST(Semtech) make reliable versions. Prices start low—often under $0.05 each in bulk from lcsc products.

Compared to ceramic caps, electrolytic ones give higher capacitance in small sizes. But ceramics work better for high speeds. Many designs use both together.

Why Choose LCSC Electronics for Sourcing

LCSC Electronics stands as a top choice for buying components. It stocks over 500,000 parts from thousands of makers. You get fast shipping, low prices, and real stock levels.

To find the smd 4 x 5.4mm electrolytic capacitor lcsc electronics easy eda:

1. Go to the LCSC site.
2. Search for “SMD 4×5.4mm electrolytic”.
3. Filter by capacitance, voltage, or brand.
4. Check datasheets for exact specs.
5. Add to your cart or BOM.

Popular picks include:

• Honor Elec RVT series (great value)
• Panasonic for premium quality
• ROQANG for high stock

Many users give positive lcsc electronics review scores for quick delivery and genuine parts. It beats places like Digikey for cost on common items, though Digikey has faster shipping in some areas.

For bulk needs, like where to buy circuit board capacitors in quantity, LCSC shines with tiered pricing.

These show LCSC pages with component details.

Integrating with EasyEDA for Smooth Design

EasyEDA makes PCB design easy and free. It works in your browser—no downloads needed. The best part? It links straight to LCSC parts.

Steps to use the smd 4 x 5.4mm electrolytic capacitor lcsc electronics easy eda in your project:

1. Open EasyEDA and start a new schematic.
2. Search the library for “electrolytic capacitor SMD”.
3. Pick a polarized symbol.
4. Place it in your circuit.
5. In properties, search LCSC for matching parts (filter by 4×5.4mm).
6. Assign the LCSC number—it pulls in footprint and price.
7. Run simulation if needed.
8. Convert to PCB layout.
9. Auto-place or adjust.
10. Export BOM and order from LCSC with one click.

The footprint is often CP_Elec_4x5.4mm. It matches standard pads for reflow soldering.

Examples of EasyEDA schematics with capacitor symbols.

This flow helps hobbyists and pros alike. Pair it with JLCPCB for assembly to get finished boards fast.

Applications and Real-World Uses

This capacitor fits many projects:

• Power decoupling near chips
• Output smoothing in DC-DC converters
• Noise filtering in audio circuits
• Bulk storage in battery-powered gadgets
• Ripple reduction in LED drivers

In drones or wearables, the small size saves weight and space. For Arduino or ESP32 boards, add one near the regulator for stable voltage.

Examples:

• A 100µF 16V cap cuts ripple by 70% in a 5V supply.
• In motor drivers, it handles current spikes.

Combine with smd resistor lcsc for RC filters or schottky diode lcsc for protection.

Some designs use tantalum capacitor lcsc for lower ESR, but aluminum ones cost less.

Selecting the Right Capacitor

Follow these tips:

• Match voltage to your max plus 50% headroom (e.g., 16V for 9V rail).
• Pick capacitance based on load—47µF for light, 220µF for heavy.
• Check ESR for low ripple.
• Look at the temperature rating—105°C for hot spots.
• Verify size in datasheet.

Common mistakes:

• Wrong polarity—can cause an explosion.
• Overheating—keep cool.
• Poor soldering—use reflow for best results.

For super high energy, check lcsc super capacitor options.

Comparison with Other Capacitors

Type	Size Example	Capacitance Range	Pros	Cons
SMD Electrolytic 4×5.4mm	4mm dia x 5.4mm	1µF to 220µF	High capacitance, low cost	Polarized, higher ESR
Ceramic MLCC	0603 or smaller	pF to 10µF	Non-polar, low ESR	Lower max capacitance
Tantalum SMD	Case A-B	1µF to 470µF	Stable, low ESR	More expensive, can fail short
Polymer Electrolytic	Larger SMD	Higher	Very low ESR	Bigger size

Electrolytic wins for bulk needs in small packages.

Assembly and Soldering Tips

SMD caps need care:

• Use a reflow oven or hot air for best joints.
• Apply paste evenly.
• Align polarity stripe.
• Avoid hand soldering if possible—heat can damage.
• Inspect for bridges or dry joints.

Store in dry places to prevent leakage.

Troubleshooting Common Issues

• High ripple? Add more caps or lower ESR type.
• Board crashes? Check for dry joints.
• Cap bulges? Wrong voltage or heat.
• No stock? Search alternatives on LCSC.

Read datasheets from sources like the Pertadad guide for more tips.

Advanced Topics for Engineers

In power design, calculate ripple current. Use formulas:

Ripple voltage ≈ I_load / (2 * f * C)

For low noise, parallel with ceramics.

In startups, this combo cuts costs by 30-50% vs. premium suppliers.

Learn more about clean designs in this clean code principles guide or debugging techniques.

FAQs About SMD 4 x 5.4mm Electrolytic Capacitor LCSC Electronics Easy EDA

What is an SMD 4 x 5.4mm electrolytic capacitor?

This is a small surface-mount aluminum electrolytic capacitor. It measures 4mm in diameter and 5.4mm in height. It stores energy and smooths voltage in circuits. The electrolyte inside lets it hold more charge than ceramic caps of the same size. It has polarity—connect it the right way or it can fail.

Why choose the 4 x 5.4mm size?

This size saves space on your PCB. It fits tight designs like drones, wearables, or small power supplies. You get decent capacitance (like 10µF to 220µF) without taking much room.

What are common capacitance and voltage ratings for this size?

Popular options include:

• 10µF at 16V
• 47µF at 16V or 25V
• 100µF at 16V or 25V
• 220µF at lower voltages

Always check the datasheet for exact limits.

Is this capacitor polarized?

Yes. Look for the stripe or minus sign on the top or side. Wrong connection can cause leaks or bursts.

How do I find this capacitor on LCSC Electronics?

1. Visit LCSC.com.
2. Search “SMD electrolytic 4×5.4mm”.
3. Filter by capacitance, voltage, or brand (like Honor Elec or Panasonic).
4. Check stock and prices.

What footprint should I use in EasyEDA?

Use “CP_Elec_4x5.4mm” or similar from the library. It matches standard pads for reflow soldering.

Can I use tantalum capacitors instead from LCSC?

Yes, tantalum capacitor lcsc options have lower ESR and are more stable. But they cost more and can fail short if overvoltaged. Stick to aluminum for most bulk filtering.

Are there alternatives if this size is out of stock?

Look for nearby sizes like 5×5.4mm or polymer types. Or check where to buy circuit board capacitors like Digikey for faster shipping.

What are tips for soldering this capacitor?

• Use reflow soldering for best results.
• Avoid too much heat—electrolytics are sensitive¹.
• Check polarity twice.
• Add it near power pins for good decoupling.

Why the SMD 4 x 5.4mm Electrolytic Capacitor LCSC Electronics Easy EDA Stands Out

This combination excels for its ease and efficiency. The smd 4 x 5.4mm electrolytic capacitor lcsc electronics easy eda delivers reliable performance in tiny packages. LCSC provides affordable access, while EasyEDA speeds design.

In conclusion, the smd 4 x 5.4mm electrolytic capacitor lcsc electronics easy eda empowers makers to build better projects faster. It offers space savings, cost benefits², and simple integration. Start your next design today—what compact gadget will you create with it?

References

1. EasyEDA Documentation – Helps users with PCB design and LCSC linking, aimed at hobbyists, students, and small teams. ↩︎
2. Pertadad Article – Detailed guide on specs, benefits, and integration for engineers and hobbyists. ↩︎