JFQF – Metallized Polypropylene Film AC Filter Capacitors

The JFQF series by jb Capacitors is a high-reliability AC filter capacitor designed for industrial-grade filtering applications, especially in UPS inverters and solar photovoltaic DC/AC systems using LCL filter topology.

Built with metallized polypropylene film, the JFQF offers outstanding self-healing performance, ensuring long-term electrical stability under high stress. It features high ripple current endurance, excellent dv/dt withstand capability, and consistently low ESR and ESL values. Encased in a flame-retardant plastic shell (UL 94V-0), it provides excellent insulation and thermal resistance.

Description

Features

  • High ripple current and high dv/dt withstand capability.
  • Resistant to high voltage with self-healing properties.
  • Low ESL (Equivalent Series Inductance) and ESR (Equivalent Series Resistance).
  • Encased in plastic with epoxy resin sealing (UL 94V-0).
  • Ideal for small power AC output filters, such as UPS and Solar Photovoltaic DC/AC inverters with LCL filter.
Specifications

Specifications

Reference Standards GB/T17702, IEC61071
Operating Temperature -40℃ to +105℃
Voltage Rating 250VAC to 480VAC; 180VAC to 350VAC for RMS
DC Voltage 300VDC to 600VDC
Capacitance Range 4µF to 60µF
Tolerance ±5% (J), ±10% (K)
Insulation Resistance ≥5000Ω (100VDC, 25℃ ± 5℃, 60s)
Voltage Test
  • Terminals: 1.5*Un (10s at 25℃ ± 5℃)
  • Between terminals and case: 3000V AC (10s, 50/60Hz)
Dissipation Factor tg δ ≤20*10^-4 (25℃ ± 5℃, 1KHz)
Maximum Altitude 2000m