PCL1A221MCL1GS
PCL series ultra-low ESR capacitor with 220uF 10V for high-frequency DC-DC converters.
Product Overview
Description
The PCL1A221MCL1GS is an ultra-low ESR conductive polymer aluminum capacitor from Nichicon's PCL series, designed for high-frequency DC-DC converter applications. With 220uF capacitance and 10V voltage rating, this capacitor delivers exceptional performance in CPU power supplies and FPGA core voltage regulators.
Featuring Nichicon's advanced conductive polymer technology, the PCL1A221MCL1GS achieves industry-leading ESR (0.009Ω typical) and excellent high-frequency characteristics. The SMD package with low ESL design minimizes impedance across the frequency spectrum, making it ideal for high-speed switching applications.
This capacitor is rated for 10,000 hours at 105°C and features a wide operating temperature range of -55°C to +105°C. The PCL series is specifically designed for applications requiring ultra-low ESR, high ripple current capability, and stable performance across temperature and frequency ranges.
Product Series
PCL
Primary Application
CPU/GPU core voltage regulators
Key Features
- Ultra-low ESR (0.009Ω) for minimal power loss
- High ripple current capability (5.5A)
- Excellent high-frequency performance
- Wide temperature range -55°C to +105°C
- AEC-Q200 qualified for automotive
- Low ESL SMD package design
- RoHS compliant and halogen-free
Specifications
| Capacitance | 220uF ±20% |
|---|---|
| Voltage Rating | 10V DC |
| Temperature Range | -55°C to +105°C |
| Ripple Current | 5.5A @ 100kHz |
| ESR | 0.009Ω @ 100kHz |
| Lifetime | 10000 hours @ 105°C |
| Termination | SMD |
| Package | 6.3mm × 7.7mm |
| Qualification | AEC-Q200 |
| Specifications | Ultra-Low ESR |
Applications
CPU/GPU core voltage regulators
Power conversion and supply
FPGA/ASIC power supplies
Electronic system design
High-frequency DC-DC converters
Power conversion and supply
Server and datacenter power
Electronic system design
Automotive ECU power supplies
Automotive and EV electronics
Telecommunications equipment
Communication and interface
FAE Expert Insights
"The PCL1A221MCL1GS is my first choice for high-current CPU VRM output filtering. The 0.009Ω ESR is among the lowest available in this capacitance range, enabling extremely low output ripple even at high load currents. I've used this capacitor in designs supporting 200A+ CPU loads with output ripple under 5mV. The high ripple current rating (5.5A) means fewer parallel capacitors are needed, saving PCB space and cost. The -55°C temperature rating is important for cold-start automotive applications. For optimal performance, I recommend placing these capacitors as close as possible to the load and using multiple vias to minimize connection impedance. The AEC-Q200 qualification provides confidence for automotive designs."
Industry-leading ESR performance for demanding CPU VRM applications
— Dr. Alan Chen, Senior FAE, BeiLuo
Frequently Asked Questions
What makes conductive polymer capacitors different from standard aluminum electrolytic?
Conductive polymer capacitors differ from aluminum electrolytic in their cathode material: Cathode Material: Aluminum electrolytic uses liquid electrolyte; conductive polymer uses solid conductive polymer. This difference creates several performance advantages: ESR: Conductive polymer ESR is 10-50x lower (0.005-0.05Ω vs 0.05-0.5Ω), enabling higher efficiency and lower ripple. Frequency Response: Conductive polymer maintains low ESR up to MHz range; aluminum electrolytic ESR increases significantly above 100kHz. Temperature Stability: Conductive polymer ESR is stable across temperature; aluminum electrolytic ESR increases 2-5x at cold temperatures. Lifetime: Conductive polymer is not subject to electrolyte drying, providing more predictable aging. Safety: Conductive polymer has no liquid to leak and is less prone to venting or catastrophic failure. Cost: Conductive polymer costs 2-5x more per uF than aluminum electrolytic. Selection: Use conductive polymer for high-frequency, low-ESR applications; use aluminum electrolytic for cost-sensitive bulk storage.
Use conductive polymer for high-frequency, low-ESR needs; use aluminum electrolytic for cost-sensitive applications.
How do I optimize PCB layout for PCL series capacitors?
Optimal PCB layout for PCL series capacitors maximizes performance: Placement: Place capacitors as close as possible to the load IC, ideally within 5mm of power pins. This minimizes trace inductance which can resonate with capacitor capacitance. Via Design: Use multiple vias (4-8 per pad) to connect to power planes. This reduces connection resistance and inductance. Keep via diameter small (0.2-0.3mm) to maintain plane integrity. Trace Width: Use wide, short traces between capacitor and load. Calculate width based on current: W = I / (0.5 × ΔT) where W is width in mils, I is current in A, ΔT is allowable temperature rise in °C. Plane Usage: Connect capacitors directly to power and ground planes rather than routing through traces. This provides lowest impedance path. Thermal Management: Ensure adequate copper area for heat dissipation. The PCL series can dissipate significant power at high ripple currents. Avoid placing near heat-generating components.
Follow these layout guidelines or contact FAE for layout review of your specific design.