jb Capacitors Company Released A Series of Axial Aluminum E-caps, Competitive Prices Available Now!!

Dear Friends,
Good news for you!
Recently, jb Capacitors Company developed few series of axial aluminum electrolytic capacitors, especially for audio system.
High quality commitment, competitive prices supported during Spring Season. Any interest, please don’t be hesitate to contact our sales for best quotation. 
We are ready here to offer you great services. 
Email: info@jbcapacitors.com


  • Bi-Polarized
  • 105”C 1000 hours
  • Different low Dissipation Fact MAX 4% at 1KHz/  MAX 5% at 1KHz/  MAX 10% at 1KHz/ or MAX 4% at 120Hz
  • High-quality crossover non-polar aluminum electrolytic capacitors


  • Specially produced for Cross-Over Networks with high fidelity audio system
  • Product mainly used: Tube Amplifiers, Audio and HiFI Systems, Audio Converters and Dividers (partials), Audio amp, Automotive Electronics Products, speaker and so on

PDF datasheet link:





jb Axial Capacitor for Audio – JFX,JSX

Capacitors seems to be normally yet indeed plays an important role in many audio equipment. 
A very good quality of capacitors can help you to deliver the most pureness touching voice, and real feeling.
Not satisfying with your current use capacitors? 

JFX.JSX are strong series in jb, designed for provide perfect sound quality and use excellent handling of high current audio pulses. 
It can deliveries to you perfect sound performance for sure!

We are not only provide competitive prices also make sure  high sound quality.
what are you waiting for? Welcome to send us your exact inquiry or ask for FREE SAMPLES!

. Quick transient design
. High Precise Capacitance ± 3%, ± 5%
. Very low Dielectric absorption factor
. Very low Dissipation factor
. Very low ESR
. Very low Inductance
. Excellent handling of high current audio pulses

Incredible Axial Aluminum Electrolytic Capacitors for Audio System

With the Chinese New Year coming, jb launched four new series of audio capacitors.
They are all good quality e-caps, can bring your audio system a great performance.
Now click below series name to check their PDF datasheets!
Hope you will bring us many of new orders in Dog of the year. Happy CNY !







Performance Characteristics

Operating Temperature Range


Load Life

1000 hours

Capacitance Tolerance


Leakage Current (μA)

MAX. 0.03CV + 3μA After 5 minutes application of rated working voltage 

MAX Dissipation Factor

MAX 4% at 1KHz

MAX 5% at 1KHz

MAX 10% at 1KHz

MAX 4% at 120Hz



Specially produced for Cross-Over Networks with high fidelity audio system

High-quality crossover non-polar aluminum electrolytic capacitors


Audio Converters and Dividers (partials), Audio amp, Automotive Electronics Products, speaker


jb New Axial Aluminum Electrolytic Capacitors JAA Series, Low Leakag

Are you looking for professional manufacturer of axial aluminum electrolytic capacitors?
Please focus on our JAA series. 
It supplies with temperature at 85"C, reliable high quality. What's more, prices supported very good during promotion.
Any interest, please don't hesitate to contact us, let's help you win more market shares. Thank  you
1.85"C, 2000hours assured
2.Low leakage current
3.Two rubber type
4.For general purpose application
Operating temperature range: -40"C~+85"C
Capacitance tolerance(20"C, 120Hz):+/-20%
Voltage Range:6.3~160WV
datasheet link:

jb New Axial Aluminum Electrolytic Capacitors JAA & JAB Sereis

To meet market needs, we released newest Axial lead E-cap--JAA and JAB series, both series are 2000H at 85C. Please find detail difference as below: 

JAA - 2000H at 85°C, Axial Aluminum Electrolytic Capacitors (Low Leakage)  
Load life of 2000 hours at 85°C 
Low Leakage Current 
2 Rubber Types 
For general purpose application 
RoHS Directive Compliant 
PDF datasheet: http://www.jbcapacitors.com/pdf/JAA-85-Axial-Aluminum-Electrolytic-Capacitors-Low-Leakage.pdf

JAB - 2000H at 85°C, Axial Aluminum Electrolytic Capacitors  
Load life of 2000 hours at 85°C 
Low Voltage 
2 Rubber Types 
For general purpose application 
RoHS Directive Compliant 
PDF datasheet: http://www.jbcapacitors.com/pdf/JAB-85-Axial-Aluminum-Electrolytic-Capacitors.pdf

JAA, JAB series Drawing: 


From jb Capacitors Company
-------We're just your best choice

jb Capacitors wish You Happy Chinese Dragon Boat Festival

Dragon Boat Festival, also called Duanwu Festival. It is a traditional holiday observed annually over 2,000 years in China to commemorate Qu Yuan (340~278 BC), 
an ancient Chinese patriotic poet. Originated from south China, Dragon Boat Festival enjoys higher popularity in southern areas.

During this special festival, we eat zongzi, drink realgar wine, racing dragon boats.....have a big meal and visit relatives..... it is very interesting.

All our staff will have one day holiday on May 30th. Wish all of you Happy chinese Dragon Boat Festival in advance!

From jb Capacitors Company 
----We're just your best choise

jb is Capable of Manufacturing Large Value Audio Capacitors JSX

jb is specialized in production of different type capacitors, offering our customers the best quality products with fast delivery and the best after sales services.

As you know, normally, JSX Superior Metallized Polypropylene Film Capacitors biggest capacitance value is 100uF. Good news to enjoy with all of our jb customers that we are capable of manufacturing capacitance value up to 150uF Audio Capacitors. And not only that, owing to our good production capacity, we can product even larger capacitance to 300uF, it just be based on your specific requirements. We hope jb professional manufacturing ability will leave deep impression to you.

Do you interested in it? If you want to know more about our jb capacitors information, please see: http://www.jbcapacitors.com/ or communicate with us freely.

jb Capacitors Company --- just your best choice

jb Latest Test Report of JFX Premium Polyprolene Film Capacitors

We would like to share the latest test report of jb JFX Premium Polyprolene Film Capacitors to 
you. Welcome to try our capacitors and let us know your thinking.

Reporter: Mr. Lee. Riccio from United Kingdom, a member of the Pinkfish forum (Leeoh) 
Project: Upgrading a CD players Rotel RCD955AX.
Samples: jb JFX 4.7µF 250V +/-3% Bulk RoHS, 2 pieces

Below is the Original letter from Mr. Lee. Riccio
Hello Iris, 
This is just a short letter to say thank you for the capacitors which arrived safely and my feedback having now installed the JFX Premium Polyprolene film capacitors in my Rotel RCD 955AX CD player as part of a series of upgrades to the player. 
Here they are installed in my CD player. They replaced two Blackgate F series electrolytic’s. 

Bigger than the Blackgate originals, but very easy to fit as legs were same diameter as Blackgate’s so they fitted through the pcb holes with absolutely no problems.

Aesthetically they look really nice and match very well with the remaining Op Amp decoupling Blackgates. 

Mods performed to my Rotel CD player:
Replace all power supply capacitors with Panasonic FC. 
Replaced all Transport, Filter, Decoder, DAC capacitors with Panasonic FC. 
Replaced all DAC Decoupling capacitors with Wima MKS series. 
Replaced Op Amps for HiFi audio grade from Texas Instruments. 
Isolated Filter chip and gave it its own independent regulated +5V power supply. 
Performed Filter Non Oversampling Modification. 
Replaced final audio output DC decoupling Blackgate F series capacitors for JFX Premium. 

How does it sound ?
I am very happy with the improvements bought with all the mods I made. So happy in fact I removed my Naim CD5i II CD player from my system which sounds considerably less good now and am keeping the Rotel in its place instead ! 
After then installing your JFX Premium capacitors the sound has opened up a little more and vocals seem to have slightly more but very clean treble. The noise floor is very low, which gives way to a very wide dynamic range probably why it seems the treble has increased slightly. 
Whilst is still early days, each time I play a CD the sound does seem to be improving with time, not huge differences, just more of the same clearer, wider, more dynamic. If the capacitor could be made a little warmer sounding would be ideal for CD replay. 
After nearly 2 weeks running of our JFX capacitors, I am pleased with the performance of the capacitors and have since we last communicated installed a very low jitter clock with its own dedicated power supply to replace the simple crystal clock in the CD player. 
This bought an immediate noticeable warmth and smoothness to the sound. So looks like your capacitors were always warm and rich sounding but the CD Player as standard wasn't allowing them to perform at their best !

Overall I am very happy with the quality of your product, service and delivery and have no hesitation in recommending to anyone seeking a sensibly priced, but high quality alternative to the usual well known, but in comparison can be very expensive American and European audiophile capacitor brands ! 

Kind Regards. 

Some Feedback from jb Customer about JFX Capacitors and X2 Capacitors JFV

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.

jb Keep Regular Stock for JSX Superior Audio Capacitors

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

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