The WLM Series DC-Link Capacitor is designed for high-performance power electronics, delivering low ESR, high current capability, and long-term reliability in demanding energy and industrial applications. Built with metallized polypropylene or mesh safety film structures, the capacitor provides stable electrical performance and strong environmental durability for DC-link circuits.

Certified to IEC 61071 (GB/T 17702) standards, the WLM series supports applications in new energy vehicles, photovoltaic energy storage systems, industrial inverters, and high-power power supplies.

Key Features

• Low ESR Design for reduced power loss and heat generation
• High Energy Density for compact power systems
• Long Lifetime: >100,000 hours at 70°C
• High Voltage Capability: 500–2000 VDC
• Low Stray Inductance: <30 nH
• High Current Capacity: 10–25 A
• UL94V-0 Flame Rating
• THB IIIB Certified for harsh environments

Key Specifications

• Rated Voltage: 500–2000 VDC
• Capacitance Range: 1–100 μF
• Capacitance Tolerance: ±5% / ±10%
• Dissipation Factor: ≤0.0002 (50Hz, 20°C)
• dv/dt Capability: >50 V/μs
• Insulation Resistance: >5000 s
• Maximum Altitude: 2000 m
• Lifetime Expectancy: >100,000 h (@70°C)

Applications

• New Energy Vehicles (EV)
• Photovoltaic Energy Storage Systems
• Industrial Power Supplies
• Inverters & Converters
• Power Electronics Systems

Performance Benefits

The WLM DC-Link capacitor helps engineers improve power conversion efficiency, system stability, and long-term operational reliability in high-voltage energy and industrial power applications.