jbcapacitors blog

Here bring you a piece of good news of jb, that the standard certification of Plastic Film Capacitors have been updated to RoHS 2.0 Report.

From different dielectric materials, jb film capacitors divide into two series:
Metallized Polyester Capacitors:
JFA - Mylar Polyester Film Capacitor              
JFB - Metallized Polyester Film Capacitor
JFC - Metallized Polyester Film Capacitor (VAC)    
JFE - Mini Metallized Polyester Film Capacitor            
JFH - Subminiature Size Metallized Polyester Film Capacitors
JFG - Axial Metallized Polyester & Polypropylene Film Capacitor
JFJ - Mini Box Stacked Metallized Polyester Film Capacitor

Metallized Polypropylene Capacitors:
JFK - Polypropylene Film Capacitor 
JFL - Metallized Polypropylene Film Capacitor
JFM - Box Type Metallized Polypropylene Film Capacitor 
JFP - High Voltage Metallized Polypropylene Film Capacitor 
JFQ - High Voltage Box Type Metallized Polypropylene Film Capacitor
JFR - Radial & Axial Polystyrene Film Capacitor 
JFS - Motor Running and Starting Capacitor
JFT - Metallized Polypropylene Film AC Capacitor Class-X1 
JFX - Premium Metallized Polypropylene Film Capacitors – Axial 
JSX - Superior Metallized Polypropylene Film Capacitors – Axial 
JFV - X2 Metallized Polypropylene Film Capacitor (275VAC) 
JFZ - X2 Metallized Polypropylene Film Capacitor (310VAC)
JFYE - Box Type Met Polypropylene Film Capacitor For Power Meter

If you need our full set of test report, please free feel to contact with our sales department. More detail information is in: http://www.jbcapacitors.com/Plastic-Film-Capacitors/.

With heavy-edge metalized Al/Zn film as electrodes and dielectric, jb JFS-7 CBB61 Box Type Motor
Running Capacitor is famous for low dissipation factor, lower temperature rise and high reliability and durability. It widely used as the start-up and running capacitor that is special for micro water pump,
cleaning machine, washing machine, single-phase water pump motor and fans.

Tolerance: J(±5%)、K(±10%); Rated Voltage: 250V, 450V (AC); 
Frequency: 50/60Hz; Capacitance: 1uF~20uF(JFS-A~D、JFS-5~7、JFS-9)
If you are interested, we are welcome you to try our capacitors. 
We will provide high quality, stable, high cost performance and beautiful appearance of capacitors. 

More capacitors information please visit our website:
http://www.jbcapacitors.com/Plastic-Film-Capacitors/JFS-Motor-Capacitor.html

Hi Lilian, Our last amplifier was very well received and JB played a big role in this result. We tested several capacitors and chose to use the JFX in 2 parts of the amplifier (220nF and 330nF) and the X2 capacitorsin the grounding section. We are delighted with the quality of them all. 

I send you some photos of our lastest amp during a demonstration last August.

In order to give best support to fans of jb Superior Audio Capacitors, we specially arranged below stock samples on hand.
If you have interesting in testing our capacitors, please feel free to contact with us.

JSX - Superior Metallized Polypropylene Film Capacitors – Axial Test Reviews
http://www.jbcapacitors.com/pdf/JSX-Superior-Metallized-Polypropylene-Film-Capacitors-Axial-Test-Reviews.pdf

JSX-Superior Audio Capacitors 250VDC 
1.0µF 250V +/-3%  Bulk RoHS  
1.5µF 250V +/-3%  Bulk RoHS  
2.2µF 250V +/-3%  Bulk RoHS
3.3µF 250V +/-3%  Bulk RoHS
4.7µF 250V +/-3%  Bulk RoHS
5.6µF 250V +/-3%  Bulk RoHS
6.8uF 250V +/-3% Bulk RoHS
10uF 250V +/-3% Bulk RoHS 

JSX-Superior Audio Capacitors 400VDC
1uF 400V +/-5%  Bulk RoHS
2.2uF 400V +/-5% Bulk RoHS
3uF 400V +/-5% Bulk RoHS
4.7uF 400V +/-5% Bulk RoHS
10uF 400V +/-5% Bulk RoHS

JSX-Superior Audio Capacitors 630VDC
1.0µF630V +/-3%  Bulk RoHS  
1.5µF 630V +/-3%  Bulk RoHS  
2.2µF 630V +/-3%  Bulk RoHS
3.3µF 630V +/-3%  Bulk RoHS
4.7µF 630V+/-3%  Bulk RoHS
5.6µF 630V +/-3%  Bulk RoHS
6.8uF 630V+/-3% Bulk RoHS
10uF 630V +/-3% Bulk RoHS

Please see a copy of the press release below  Links to some of the coverage in UK. 

JFG series Axial MKT & MKP film capacitors are more and more popular in the market, we can offer good prices, short delivery and reliable quality to help our customers win more and more market shares.

http://www.newelectronics.co.uk/electronics/axial-metallised-polyester-and-polypropylene-film-capacitors/116888/

http://www.electronicspecifier.com/passives/film-capacitors-target-many-instrument-applications

http://www.radio-electronics.com/news/distribution-supply/components-bureau-announce-new-addition-to-6994

We are waiting for your more opportunity and inquiry.

As you know, our JFZ X2 MKP Capacitors are very hot in current market, many customers confirm orders now, do you know why? 
Here we would like to share you more advantage about this series.

★ Short delivery, free samples, some popular items are stock available.

★ Very competitive price with VDE, ENEC and UL approvals, high quality approved by Bosch, Linak, Emerson etc.... big project before.

★ Widely application: Power supplier, Power meter, LED/lighting, Electronic ballasts, Remote control, Electronic toys, Household appliances, Communication products, Security products, Digital products......

★ Equivalent Cross: Kemet (Arcotronics)R46, Epcos B81130, Vishay MKP 3382,3392, Wima MK3 X2, Panasonic ECQU, Pilkor PCX2 337,339...

For information, please send inquiry to our sales at once, thank you! 

-----From jb Capacitors Sales department
       We're just your best choice

jb capacitors company produce film capacitors since 1980, with more than 35 expierence, offer very good quality for various film capacitors.

Dipped MKT MKP film capacitors:
JFB- Metallized polyester film capacitors
JFE- Metallized polyester film capacitors--mini size
JFL- Metallized polypropylene film capacitors
JFP- High voltage metallized polypropylene film capacitors

Box type MKT film capacitors:
JFD- Box type metallized polyester film capacitors
JFJ- mini box metallized polyester film capacitor, stacked
JFM- Metallized polypropylene film capacitors
JFQ- High voltage metallized polypropylene film capacitor

Audio Capacitors: 
JFX- Premium metallized polypropylene film capacitor, axial type
JSX- Superior metallized polypropylene film capacitors, Axial type

Motor capacitors:
JFS- Motor film capacitors, more than 28 different types, with CE and UL certifications

Are you ready to use jb High end audio capacitors in your equipments? You will find the excellent sound effect!

Free samples are available for all of you...come on...we are waiting for your any inquiries!

JFX- Premium Metallized polypropylene film capacitors, Axial type--Black color

JSX- Superior Metallized polypropylene film capacitors, Axial type--White color

Capacitance: 1000pF ~400uF

Voltage: 250VDC ~630VDC

Tolerance: +/-5%, +/-3%, +/-1%

Sometimes, customer will be confused by the so-called "outer foil" or the "inner foil"of our audio capacitors.
Today we would like to tell you more about this point. I am sure you will understand by below customers explanation.

" I have all my JFX caps soldered in at the moment, but plan to try some Jensen caps in place o them, so i will try to do the test as well. 
With a sensitive millivolt AC meter i think you could see the difference just by connecting it one way and touching the cap. 

The induced mains hum will be higher when the outermost foil is connected to the anode of the meter(maybe).

I think more and more that this is an example of "audiophile", which means that people searcing for better and better sound, and not always exactly knowing the technical aspects of it, they will assume one way is better because another cap manufacturer said so.

I feel that the JFX is a solid performer in either direction used(after all it is a bipolar cap as you stated), and i feel that the price/performance ratio is excellent."

How are you? Let start our new lessons in the new year. Do you know what is Film capacitors? 

Film capacitors, plastic film capacitors, film dielectric capacitors, generically called “Film Capacitors”, are electrical capacitors with an insulating plastic film as the dielectric, sometimes combined with paper as carrier of the electrodes. 

The dielectric films, depending on the desired dielectric strength, are drawn in a special process to an extremely thin thickness, and are then provided with electrodes. 
The electrodes of film capacitors may be metallized aluminum or zinc applied directly to the surface of the plastic film, or a separate metallic foil overlying the film. 

Two of these conductive layers are wound into a cylinder shaped winding, usually flattened to reduce mounting space requirements on a printed circuit board, or layered as multiple single layers stacked together, to form a capacitor body. 

Our company produce full series of  Film capacitors Top quality in china, such as raw material: 
Polyester (MKT), Polypropylene (MKP), polystyrene... 
Welcome to visit our website http://www.jbcapacitors.com/Plastic-Film-Capacitors/ for more information, thank you.

From jb Capacitors Company Sales team