LXS-22000uF-50V
LXS series snap-in aluminum electrolytic capacitor with 22000uF capacitance and 50V rating for high-capacitance applications.
Product Overview
Description
The LXS-22000uF-50V is a high-capacitance snap-in aluminum electrolytic capacitor from Chemi-Con, ideal for applications requiring substantial energy storage.
With 22000uF capacitance and 50V rating, this capacitor excels in hold-up time applications, battery backup systems, and high-current filtering. The large capacitance provides extended ride-through capability during power interruptions.
Features include 9.0A ripple current capability, 5000 hour lifetime at 105°C, and robust snap-in terminals. The 35mm diameter package is compatible with standard mounting hardware.
Product Series
LXS
Primary Application
UPS systems
Key Features
- Very high capacitance 22000uF
- High ripple current 9.0A
- Extended hold-up time
- Low ESR 0.012 Ohm
- Snap-in mounting
- RoHS compliant
Specifications
| Capacitance | 22000uF ±20% |
|---|---|
| Voltage Rating | 50V DC |
| Ripple Current | 9.0A @ 105°C, 120Hz |
| Temperature Range | -40°C to +105°C |
| Lifetime | 5000 hours @ 105°C |
| ESR | 0.012 Ohm @ 100Hz |
| Package | Snap-in 35mm diameter |
Applications
UPS systems
Electronic system design
Battery backup
Battery and charging management
Motor drives
Motor drive and control systems
Power supplies
Electronic system design
Energy storage
Renewable energy systems
FAE Expert Insights
"The LXS-22000uF-50V is my go-to recommendation for applications requiring maximum capacitance in a standard snap-in package. The 22000uF provides excellent hold-up time for UPS and backup applications. I've successfully used this capacitor in industrial UPS systems where ride-through during power interruptions is critical. The 9.0A ripple current rating handles high discharge currents well. For applications requiring even more capacitance, paralleling multiple units works excellently with proper layout."
Maximum capacitance for hold-up time applications
— David Wang, BeiLuo
Frequently Asked Questions
What is the hold-up time with LXS-22000uF-50V?
Hold-up time depends on load current and allowable voltage drop. For a 10A load with 20V allowable drop: t = C × ΔV / I = 22000uF × 20V / 10A = 44ms. For longer hold-up, use multiple capacitors in parallel or higher capacitance values. Always include safety margin in calculations.
Calculate hold-up time based on your load current and voltage requirements.
What is the inrush current limitation?
Inrush current should be limited to prevent capacitor damage. Recommended inrush current limit: 50A maximum for 35mm snap-in capacitors. Use NTC thermistors, soft-start circuits, or current-limiting resistors. Pre-charge circuits are recommended for high-voltage applications. Monitor capacitor temperature during startup.
Implement inrush current limiting for capacitor protection.
How does temperature affect capacitance?
Capacitance varies with temperature: At -40°C: -10% from nominal, At 25°C: nominal, At 85°C: +5% from nominal, At 105°C: +8% from nominal. This variation is normal for aluminum electrolytic capacitors. Design circuits to accommodate this variation. The capacitance returns to nominal when temperature returns to 25°C.
Design for ±20% capacitance variation over temperature range.
What is the self-discharge rate?
Self-discharge rate is approximately 0.5-1% per hour at 25°C. Higher temperatures increase self-discharge. After 24 hours without power, expect 10-20% voltage drop. For safety, always treat capacitors as charged and use bleeder resistors. The self-discharge follows exponential decay characteristics.
Use bleeder resistors for safety discharge.
Can this capacitor handle pulse currents?
Yes, LXS series can handle pulse currents up to 100A for short durations (<100ms). For repetitive pulses, ensure RMS current doesn't exceed ripple current rating. Pulse capability depends on pulse width, repetition rate, and capacitor temperature. For high pulse applications, consider parallel capacitors to distribute stress.
Verify pulse current capability for your specific waveform.