In modern power electronic design, effective EMI suppression is a critical challenge. With higher switching frequencies and complex topologies, demand for reliable AC filter capacitors continues to grow. Selecting the right capacitor directly impacts system reliability, thermal performance, and compliance with EMI standards.
The jb® JFQF AC Filter Capacitor series is built with metallized polypropylene film, optimized for AC output filtering in solar inverters, UPS systems, and LCL filters. These capacitors deliver low ESR, high ripple current endurance, and proven long-term stability.
Key Advantages of JFQF Capacitors
Low ESR and ESL for precise EMI suppression
High ripple current handling in demanding environments
Self-healing metallized film ensures long capacitor life
UL 94V-0 epoxy sealing enhances safety and durability
Wide voltage ratings — ideal for 250VAC to 480VAC filtering
JFQF capacitors are the preferred choice for engineers seeking stable AC filtering, compact form factor, and EMI reduction in industrial and renewable energy systems.
Jb capacitors company is professional in manufacturing Metallized Polyester Film Capacitors. Our JFB series is one of the top sellers. This product is also known as CL21. It’s great substitution of Vishay MKT 368, Epcos B32591~B32594. Mainly used in power supplies, electronics ballasts etc.
We support very competitive prices and superior product quality.
JFB Specifications: Operating Temperature: -40°C~ +85°C Rated Voltage: DC 100V, 250V, 400V, 630V Capacitance Range: 0.01 ~ 6.8μF Capacitance Tolerance: ±5%, ±10%, ±20% Packing: Bulk or Ammo package
jb has the thought to develop Audio capacitors market, so we are launching different Audio capacitors time by time includingJLX,JGX,JMXand so on. But please never forgot the most classic series ofJFX,JSX,JPX. These are the popular Audio series in jb. They are same type, but it has different level, JFX is the basic type, JSX is the middle class, JPX is the best among three. Generally, they are all goods, but you get better sound with JPX for sure.
They are all Metallized Polypropylene Film Capacitors with Axial type. Below is its feature with simple version. If you want to know more information and the price, please send us RFQ asap.
jb Capacitors Company can offer the regular X2 capacitors, called JFW - X2 Metallized Polypropylene Film Capacitor (310VAC), but we also have the series that has high stability of capacitance under severe ambient condition (high temperature and high humidity). The series is JFWT. And, it can be used in across-the-line, interference suppression circuit.
And, for this kind of capacitors, it has safety approval of VDE, ENEC and UL approvals. So that you have certain quality assurance. Also, we have short delivery because sometimes we will have hot sell capacitance items that have stock available. Finally, jb can offer good prices for this series. It is one of jb’s strong series.
Application: Power meter, LED driver, Sever ambient condition applications.
jb Capacitors is a Hong Kong based Metallized Polyester Film Capacitors manufacturer with a long history. We have better price in popular product JFB than your other suppliers, but with the superior quality. Special customized of Metallized Polyester Film Capacitors are available as well. Why don’t you try to work with us to reduce your costs?
JFB - Metallized Polyester Film Capacitor Operating Temperature: 40°C~ +85°C Rated Voltage: DC 100V (2A), 250V (2E), 400V (2G), 630V (2J). Capacitance Range: 0.01 ~ 6.8μF Capacitance Tolerance: ±5 %( J), ±10 %( K), ±20 %( M) Packing: Bulk or Ammo package
After decades of development, jb has accumulated rich experience in producing small size box type metallized polyester film capacitors. Our JFJ series with high dv / dt ability and small size due to stacked construction. The electrical performance is superior in China market. At the same time, we also gain high reputation in the overseas market.
Expect for kinked leads, products are also available with straight leads and cut leads on customer request. Please send us your enquiry, we will provide you with our best offer.
jb capacitors produce MKT, MKP, X2 safety metallized polypropylene capacitors since 1980.
We are going to stock some X2 capacitors, and provide better delivery support to you. Do you have interest ?
Could you please send us the X2 capacitors requirements ? Then we will keep stock for you. You are welcome to request samples and quotation from us too.
