🔹 2PCS 10µF 35V SMD Aluminum Electrolytic Capacitor
Compact surface-mount aluminum electrolytic capacitors with a 10µF value and a 35V DC rating. Designed for power filtering, decoupling, and energy storage in space-constrained modern electronics such as motherboards, laptops, power modules, and compact IoT devices.
✅ Specifications:
Capacitance: 10 Microfarads (µF)
Rated Voltage (VDC): 35V
Tolerance: ±20% (Standard for electrolytics)
Type: Aluminum Electrolytic, SMD (Surface Mount Device)
Temperature Range: -40°C to +105°C (Common 105°C rating)
Equivalent Series Resistance (ESR): Moderate (varies by series)
Leakage Current: Low (specified by manufacturer)
Package / Case Size: Typically 6.3mm x 5.8mm or 6.3mm x 7.7mm (Diameter x Height, φD x H)
Pitch / Lead Spacing: 2.5mm to 3.5mm (Standard for SMD electrolytics)
Polarity: Polarized – Negative (-) terminal marked by a white stripe/band on the case and a shaded area on the PCB footprint.
Lifespan: Typically 1000–5000 hours at max temperature (longer at lower temps)
Quantity: 2 pieces
⚙️ Key Features:
High Voltage Margin: The 35V rating provides a significant safety margin for 12V, 19V, and 24V circuits, ensuring reliability.
Space-Saving SMD Design: Enables high-density PCB assembly where through-hole components are not feasible.
Robust Construction: Suitable for automated reflow soldering processes.
Wide Temperature Range: The 105°C rating ensures stable performance in warmer environments.
Cost-Effective Storage: Provides a good balance of capacitance and voltage in a small, affordable package.
📦 Typical Applications:
DC-DC Converter Filtering: Input/output filtering on 12V, 19V, or 24V switching regulators and buck/boost modules.
IC & Microcontroller Decoupling: Placed near power pins of processors, FPGAs, and other high-speed digital ICs to suppress noise.
Power Supply Stabilization: On the input and output of voltage regulators (LDOs, switching regulators) to improve transient response.
Audio Circuit Coupling: DC blocking in audio signal paths (though film caps are preferred for critical audio).
General Energy Buffering: Providing localized charge reserves to prevent voltage droop during brief high-current events.
🔧 Mounting & PCB Design Notes:
Polarity is Critical: The negative (-) terminal is marked with a white stripe on the capacitor body. The PCB footprint must have a matching shaded or “+” marking for the positive pad. Incorrect polarization will cause failure.
PCB Footprint: Use the manufacturer-recommended land pattern. Ensure pad sizes and spacing match the capacitor’s dimensions.
Reflow Soldering: Compatible with standard SMT reflow profiles. Avoid excessive heat exposure.
Placement: For decoupling, place as close as possible to the power and ground pins of the target IC, with short, wide traces.
Voltage Derating: For long-term reliability, operate at ≤80% of the rated voltage (e.g., ≤28V for a 35V capacitor).
⚠️ Important Limitations & Care:
Polarity Warning: Reverse voltage will cause catastrophic failure—venting, leakage, or explosion. Double-check orientation before soldering.
Limited Lifespan: Electrolytic capacitors have a finite lifespan that decreases with higher operating temperatures. Avoid placement near heat sources like voltage regulators or transformers.
ESR & Ripple Current: In switching power supplies, ensure the capacitor’s ripple current rating is sufficient for the application to avoid internal heating and premature failure.
Not for Precision Timing: The ±20% tolerance and temperature sensitivity make them unsuitable for precision RC timing circuits. Use ceramic or film capacitors instead.
Mechanical Stress: The SMD body can be sensitive to board flexing. Provide mechanical support if the PCB is subject to vibration or bending.
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