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
Features:
1.85"C, 2000hours assured
2.Low leakage current
3.Two rubber type
4.For general purpose application
 
Specification:
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
Datasheet:http://www.jbcapacitors.com/Plastic-Film-Capacitors/JFX-Premium-Metallized-Polypropylene-Film-Capacitors-Axial.html

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. 
Lee.

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
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

jb Capacitors Superior Audio Capacitors Testimonials Summary

An old saying goes "No pains, No gains."  
In this year, jb Resource and Development department sacrificed lots of time and energy on designing your new product JSX.

In the process we encountered complicated engineering problems, once upon a time, we had an idea to give up.
But we are not. Perseverance and devotion make us success in the end. 
We consulted to some rich experienced audio capacitors designers and collected vast end user's using findings to upgrade and improve our JSX.

At the moment, we would like to invite you enjoy the most true testimonials about or JSX Superior Metallized Polypropylene Film Capacitors.
Believe it or not, you can try our JSX yourself and let us know how you comment about it.

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

jb Testimonial of JFX Premium and JSX Superior MKP Audio Cap

In the search of a affordable audio capacitors for decoupling purpose, I have got the JFX and JSX series from jb Capacitors. Now I will explain how they are compared with a a few others of similar size range.

Tested capacitors:
JSX: 2.2uF/250V
JFX: 2.2uF/400V
Mundorf Mcap 2.2uF/250V
Mundorf EVO 2.2uF/450V
Clarity Cao PX 2.2uF/250V

To have similar requirements I have a relay switch board next to my  pre-amp direct out from DAC. All DC coupled and no other capacitors in this way. DAC output impedance is 47Ohm, Pre-amp impedance is 470kOhm. These are very common values and should be give a good start point for comparisons. I can switch direct from capacitor to capacitor and DC coupled.

Mesurements are all very good. most below my measuring equipment. The tolerances where all below the printed 5%(JFX) and 3%(JSX). I have measured 1.36% and 0.99%.
The dielectric dissipation factor has been tan:<0.001 at 1kHz.

Listening test:
JSX: Clear, detailed, wide and open up presentation
JFX:  Detailed, gives a realistic soundstage and stress free listening. very natural and a good tonal balance. My favourite for acoustic instruments and voices.

Mcap:
Clear with more midrange. Makes sound a bit hard and grained.

EVO:  
Detailed and holographic presentation, seems to be a bit louder, but tonal balance is not perfect. After longer listening I feel like disrupted soundstage. 

Clarity Cap PX:
Musical and warm, but less detailed.

After burning in with 24hrs:
JFX: well balanced with more 3 dimensional stage, warm finish
JSX: clean and clear with rich details, but flatter sound stage
Overall both types are very high quality and for sure a good choice for a competitive price.

Summary:
jb Capacitors has surprised me with excellent capacitors. They are not expensive, small sized and good sounding. They beat most of even more expensive capacitors. Well done!

Best regards
Alex
Dial-Audio

More information please check below link:
http://www.jbcapacitors.com/Plastic-Film-Capacitors/JFX-Premium-Metallized-Polypropylene-Film-Capacitors-Axial.html
http://www.jbcapacitors.com/Plastic-Film-Capacitors/JSX-Superior-Metallized-Polypropylene-Film-Capacitors-Axial.html


jb JSX Test Report From an Audiophile in United Kingdom (Mr. HF Choi)

Samples Tested by Mr. HF Choi
jb JSX - Superior Metallized Polypropylene Film Capacitors - Axial
JSX  1.0uF 250V +/-3% Bulk RoHS,  4pcs 

Datasheet link: http://www.jbcapacitors.com/pdf/JSX-Superior-Metallized-Polypropylene-Film-Capacitors-Axial.pdf

Introduction of Mr. HF Choi
My name is HF Choi I am in the UK and looking for quality JSX cap for DIY hifi.  

Original letter from Mr. HF Choi
I received the capacitors a couple weeks ago and have installed them in my DAC.

I installed the 4 JSX 1uF caps as bypass on the output electrolytic caps of the DAC (2 caps per channel, each 150uF), so the bypass was less than 1%.
Immediately on first listen I could hear that the bass was bloated and the soundstage was closed in but the treble was a bit sweeter.

I let the DAC continue to play for 50 hours after which the bass improved dramatically.  It sounded like an extra octave lower was added.
Also, the treble was becoming more tangible and fine details throughout the frequency range became audible whereas before they were not.  
Nuances now audible in the music making instruments sound more real changed the tonality of entire pieces of music.
It slowed the music down somewhat for some fast bass music but also sped up music with fast transient treble.
Nice, as this probably means there's now less signal smearing and timing issues.

I find there's now a less of a difference between redbook tracks and DSD tracks.  
Both sound smooth and detailed now but DSD more dynamic with good recorded material.
Still very enjoyable with the improvement in tonality, timing, low level detail and nuances, and improved frequency extension - and of course price is very good. I’ve used them for hundreds of hours so far.

I chose the JSX because of the small size. Compared with large and expensive Mundorf and similar grade caps, it is an easy choice. Very high price/performace ratio with the JSX.
I am very satisfied with the performance of the JSX . Thanks for a great product!