High Ripple Current Aluminum Electrolytic Capacitors
Low-ESR snap-in and screw terminal capacitors engineered for high-ripple applications
Understanding Ripple Current
In DC power circuits, a capacitor's ripple current rating determines how much AC current it can safely handle before internal heating exceeds design limits. Excessive ripple current causes:
- Internal temperature rise — accelerates electrolyte evaporation
- Capacitance loss — from electrolyte dry-out over time
- ESR increase — further compounding self-heating
- Pressure buildup — potentially activating the pressure relief vent
HUAYU's high ripple current series use advanced low-ESR electrolyte and optimized internal construction to minimize self-heating and maximize useful operating life in ripple-intensive applications.
Recommended Series
Ideal Applications for High Ripple Current Capacitors
Inverter Welding Machines
High-frequency inverter welding produces significant ripple current. Our CD13HL series handles the demanding DC-link filtering requirements of MIG, TIG, and plasma welding power sources.
Frequency Inverters & VFDs
Variable frequency drives require capacitors that can withstand the ripple from PWM rectification and inversion stages. Low ESR minimizes heating in compact drive enclosures.
UPS Systems
Online UPS systems charge batteries and drive inverters simultaneously, creating continuous ripple stress. High ripple current rating directly translates to longer UPS capacitor life.
Industrial Power Supplies
High-power switched-mode power supplies for industrial equipment place continuous ripple demands on DC-link capacitors.