Learn how to select the right Nippon Chemi-Con (NCC) capacitor for your application. This comprehensive guide covers key parameters, application considerations, and series recommendations to help you make informed decisions.
Identify operating voltage, temperature range, ripple current, and expected lifespan for your application.
Calculate required capacitance based on ripple voltage requirements and circuit constraints.
Select a voltage rating with appropriate derating (typically 1.3x to 2x working voltage).
Ensure the capacitor can handle the application's ripple current without excessive heating.
Lower ESR is needed for high-frequency applications and efficiency optimization.
Choose the appropriate NCC series based on performance requirements and form factor.
Always select a voltage rating higher than the maximum working voltage. NCC recommends 1.3x to 2x derating for optimal lifespan.
FAE Note: In buck converter output applications, voltage transients can exceed input voltage during load transients.
Determined by ripple voltage requirements and circuit topology. Higher capacitance reduces ripple but may increase inrush current.
FAE Note: For SMPS applications, aim for 100-200µF per amp of output current as a starting point.
Capacitors must handle the application's ripple current without exceeding rated values to prevent excessive heating and reduced lifespan.
FAE Note: Parallel capacitors can increase total ripple current capability while reducing overall ESR.
Affects efficiency, ripple voltage, and heat generation. Lower ESR is preferred for high-frequency applications.
FAE Note: For high-efficiency applications, consider polymer capacitors with significantly lower ESR.
Consider both ambient temperature and self-heating from ripple current. NCC capacitors typically operate to +105°C.
FAE Note: Capacitor life approximately halves for every 10°C increase in temperature.
Determined by operating conditions. NCC capacitors offer 2,000 to 10,000 hours life at +105°C depending on series.
FAE Note: Operating at lower temperatures significantly extends actual lifespan.
| Series | Best For | Key Features | Typical Applications |
|---|---|---|---|
| KZE | General Purpose | Cost-effective, 2000-8000h life, standard ripple | SMPS output, general filtering |
| KY | High Ripple Current | 8000-10000h life, superior ripple capability | Industrial power supplies, high-power SMPS |
| KMG | Space-Constrained | Miniature profile, high capacitance density | Portable devices, SMT applications |
| CCAP | Ultra Low ESR | Polymer technology, extremely low ESR | High-frequency, high-efficiency applications |
| VJ | High Temp Operation | Extended temperature range, high reliability | Automotive, industrial high-temp |
Consider: High voltage rating, sufficient capacitance for ripple reduction
Recommended: KZE or KY series, depending on ripple requirements
Consider: Low ESR, sufficient capacitance for ripple
Recommended: KZE or polymer series for high-efficiency apps
Consider: High ripple current, vibration resistance
Recommended: Snap-in or screw-terminal series
Consider: Temperature, vibration, long-term reliability
Recommended: VJ series or automotive-qualified parts
Calculate minimum capacitance needed for your application's ripple requirements.
Use CalculatorLearn the critical factors in selecting NCC capacitors for high ripple current applications.
How Equivalent Series Resistance affects your design and how to optimize for it.
Methods to predict and enhance the operational life of NCC capacitors.
Our FAE engineers can provide personalized recommendations based on your specific application requirements
