Industrial Power Supplies
Aluminum Electrolytic Capacitor Solutions for Switching Power Supplies, DC-DC Converters, and PFC Circuits
Summary: HUAYU's aluminum electrolytic capacitors are engineered for industrial power supply DC-link and output filtering. Snap-in series CD292, CD293, CD294 and screw-terminal series CD13L, CD13HL provide reliable bulk energy storage for SMPS, battery chargers, and industrial control power supplies — with cost-effective cross-references to major Japanese brands and a standard lead time of 15–30 days (vs. 16–24 weeks often quoted by majors).
Key Capacitor Requirements
Low ESR
Low equivalent series resistance is essential for minimizing power loss and heat generation in high-frequency switching circuits. High ESR leads to excessive internal heating and reduced capacitor lifespan.
High Ripple Current
SMPS and PFC circuits generate significant AC ripple on the DC bus. Capacitors must handle the RMS ripple current without exceeding temperature rise limits, typically rated at 105°C.
Temperature Endurance
Power supplies often operate in enclosed environments with limited airflow. Capacitors must withstand sustained high ambient temperatures while maintaining electrical performance over thousands of hours.
Long Service Life
Industrial equipment runs 24/7. Capacitors with extended life ratings (5,000–10,000 hours at 105°C) reduce maintenance frequency and total cost of ownership.
Recommended Series for Industrial Power Supplies
HUAYU series with downloadable PDF datasheets — built for SMPS, PFC, and DC-link filtering
| Series | Type | Key Features | Typical Application | Datasheet |
|---|---|---|---|---|
| CD294 | Snap-In | Ultra-low ESR, extended life, 105°C | SMPS output filtering, DC-DC converter | Download PDF |
| CD293 | Snap-In | High ripple current, DC-link optimized | PFC boost, inverter input filtering | Download PDF |
| CD297 | Snap-In | Load-life optimized, high ripple current | PFC boost circuit, input filtering | Download PDF |
| CD298 | Snap-In | Large diameter, long life | High-power SMPS bulk capacitor | Download PDF |
| CD13L | Screw Terminal | Long life, low impedance | High-power industrial PSU DC-link | Download PDF |
| CD13HL | Screw Terminal | High temperature 105°C, long life | Heavy-duty power supply filtering | Download PDF |
Replace Major Brands in Industrial PSU Designs
HTML series cross-references for capacitors commonly used in industrial power supplies
Need a cost-effective alternative to Nichicon, Nippon Chemi-Con, or Rubycon in your SMPS or PFC stage? Browse our crawlable HTML tables and download HUAYU datasheets.