LED Driver Capacitor Solution
Application
Description
Complete capacitor solution for LED drivers from 10W to 300W with long lifetime and high ripple current capability.
Core Advantages
Recommended Bill of Materials (BOM)
| Item | Part Number | Description | Quantity | Datasheet |
|---|---|---|---|---|
| 1 | RS-100uF-400V | Radial capacitor 100uF 400V for input filtering | 1 | 📄 Download |
| 2 | HP-10000uF-400V | Snap-in capacitor 10000uF 400V for PFC output | 1 | 📄 Download |
| 3 | HM-4700uF-200V | Snap-in capacitor 4700uF 200V for PFC output | 1 | 📄 Download |
| 4 | RS-1000uF-50V | Radial capacitor 1000uF 50V for output filtering | 2 | 📄 Download |
| 5 | VT-100uF-16V | SMD capacitor 100uF 16V for output filtering | 2 | 📄 Download |
Applications
Technical Specifications
Customer Success Stories
|
Challenge
Customer needed reliable capacitors for 200W LED panel drivers with 5-year warranty
Solution
Implemented HP series capacitors with 15,000 hour lifetime rating and conservative voltage derating
Results
|
Challenge
150W LED street lights required capacitors for outdoor environments with wide temperature range
Solution
Selected HP series capacitors with 105°C rating and extended lifetime for outdoor reliability
Results
FAE Expert Insights
Senior FAE
Applications Engineer
10+ years
Professional Insights
Having designed capacitor solutions for hundreds of LED drivers, I've learned that capacitor selection is critical for both reliability and cost. The key insight: always size output capacitors for the actual LED current ripple requirements, not just the converter output. For LED drivers, I recommend operating capacitors at 80% of rated voltage and 70% of rated temperature to achieve the 50,000+ hour LED lifetime. Another important consideration: input capacitors see high surge currents at power-on. Use capacitors with adequate surge current ratings or add inrush limiting. For PFC output, the capacitor handles both line frequency ripple and switching ripple - size for the combined stress.
Key Takeaways
- Size output capacitors for LED current ripple requirements
- Operate at 80% voltage and 70% temperature for long life
- Input capacitors need adequate surge current ratings
- PFC output capacitors handle combined line and switching ripple
Decision Framework
LED Driver Capacitor Selection Framework
Steps:
- Calculate output capacitance based on LED current ripple requirements
- Select input capacitors with adequate surge current capability
- Size PFC output capacitors for combined line and switching ripple
- Apply 80% voltage derating for extended lifetime
- Ensure 105°C rating for enclosed LED fixtures
- Verify ripple current ratings at actual operating conditions