jbcapacitors blog

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%

Product Features:
Low in dissipation,small rise,good self-healing performance,stable capacitance and usage safety and dependable.

Product Applications:
They are widely used for draught fan、fan、dehumidifier...etc electrical appliances and equipments start and running.

Common Capacitance In uF:
1+2+2, 1.2+1+2, 1.5+2.5+2.5, 1.75+2+3, 2+2+2, 2+2.5+2.5, 3+4+2.5, 3.5+5+5
3.5+4+6, 4+6+5, 4+4+2.5, 4+4+6, 4+6+8, 4.3+6+5, 4.5+4+6, 4.5+5+5
5+4+3, 5+5+6, 6.5+6+5

Common Voltage At VAC:
250V/250V/250V   300V/250V/250V   350V/250V/250V   400V/300V/300V   
450V/250V/250V   500V/400V/400V   500V/450V/450V  

Samples of jb JFS-E Luxury Ceiling Fan Capacitors:
1、CBB61 JFS-E  300VAC 4.2uF+1.2uF +1.2uF +1.2uF ,+/-5% , Bulk RoHS, 5 wire 100mm+/-10mm  L*T*H=50*24*37mm  
2、CBB61 JFS-E  300VAC 3.6uF+1.2uF +1.2uF +1.2uF ,+/-5% , Bulk RoHS, 5 wire 100mm+/-10mm  L*T*H=42*25*35mm

An aluminum electrolytic capacitor, usually simply called an electrolytic capacitor (e-cap), is a capacitorwhose anode (+) consists of pure aluminum foil with an etched surface, covered with a uniformly very thin barrier layer of insulating aluminum oxide, which operates as a dielectric. 

The electrolyte, which covers the rough surface of the oxide layer, operates as the second electrode, the cathode (-). 

E-caps have the largest capacitance values per unit volume compared to the two other main conventional capacitor families, ceramic and plastic film capacitors, but articulately smaller capacitance than similar sized supercapacitors.

Come to us jb Capacitors, a professional manufacturer for film capacitors, and aluminum electrolytic capacitors.

let us provide you the most professional support on technical side, marketing side.

"No matter how long the winter, spring is sure to follow." ——Proverb 

"April hath put a spirit of youth in everything." ——William Shakespeare 

"You can cut all the flowers but you cannot keep Spring from coming" ——Pablo Neruda 

"Spring -- an experience in immortality." ——Henry D. Thoreau 

"Spring is nature's way of saying, 'Let's party!'"  ——Robin Williams 

"Spring is when life's alive in everything." -Christina Rossetti 

"In the spring time, the only pretty ring time, when birds do sing ... sweet lovers love the spring."
——William Shakespeare 

"Spring is when you feel like whistling even with a shoe full of slush." ——Doug Larson 

"An optimist is the human personification of spring." ——Susan J. Bissonette

The motor capacitors is widely used as the starting and running of AC single-phase synchronism motor at 50Hz/60Hz frequency power.
jb Capacitors are manufacturing full line of motor starting capacitors, with 28 different types, including CBB60, CBB61, CBB65 motor capacitors. With their good characteristic of self-healing and long life-span, our motor capacitors are extensively applied in motors,air conditioners,water pumps,compressors and refrigerators etc.

The JFS series motor capacitors operating voltage is fixed at 250VAC, 450VAC. And have wide capacitance range:1uF~100uF. 
The operation condition: -25'C~+70'C. The standard capacitance tolerance: ±5%,  ±10%. 

For more information of motor capacitors, please check the below link:
http://www.jbcapacitors.com/Plastic-Film-Capacitors/JFS-Motor-Capacitor.html
http://www.jbcapacitors.com/pdf/JFS-Motor-Capacitor.pdf

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."

When we ask our customers the reason why they want to change supplier, most of their answer is looking for better quality. 

Some customers bought from distributors before with uneven quality, some imported from inferior manufacturers with very low price. But finally they wants higher quality and turn to us. 

jb Capacitors Company has over 35 years production history, high quality were approved even by ABB, Linak, Bosch, Philips....
You can obtain cost-effective capacitors with High Quality & Reasonable Price here.

Stay with us, you will be pleased with our quality, professional and excellent service! 

As a marketing manager in jb capacitors for 6 years, I have witnessed the development of our company in the past years.
The biggest success in year 2015 is that we achieved a " Zero Tolerance" for Quality Defects.

This impressive result cannot be accomplished without jb hard working members, especially Quality and Engineer Departments.
Besides this, we also provide technical assistance to all of our jb capacitors customers. Our expertise are highly praised by customers.
We are not only selling products, we are bringing you satisfying user experience and quality assurance.

In year 2016, we will pursue higher standard both in quality and service. We are just your best choice.

An electrolytic capacitor is a type of capacitor that uses an electrolyte to achieve a larger capacitance than other capacitor types. An electrolyte is a liquid or gel containing a high concentration of ions. 
Almost all electrolytic capacitors are polarized, which means that the voltage on the positive terminal must always be greater than the voltage on the negative terminal. 
The benefit of large capacitance in electrolytic capacitors comes with several drawbacks as well. 
Among these drawbacks are large leakage currents, value tolerances, equivalent series resistance and a limited lifetime. 

Electrolytic capacitors can be either wet-electrolyte or solid polymer. They are commonly made of tantalum or aluminum, although other materials may be used. 
Super capacitors are a special subtype of electrolytic capacitors, also called double-layer electrolytic capacitors, with capacitances of hundreds and thousands of farads.  

This article will be based on aluminum electrolytic capacitors. These have a typical capacitance between 1µF to 47µF and an operating voltage of up to a few hundred volts DC. 
Aluminum electrolytic capacitors are found in many applications such as power supplies, computer motherboards and many domestic appliances. Since they are polarized, they may be used only in DC circuits.

Read more information please check our company website: http://www.jbcapacitors.com/Aluminum-Electrolytic-Capacitors/

From jb Capacitors Company sales department

Good news to announce that we updated jb Radial Electrolytic Capacitors RoHS 2.0 report at the early of 2016.
The goods we supply are with RoHS compliant and lead free.

Radial Aluminum Electrolytic Capacitors include below series, other specification available on request.

JRA - 2000H at 85°C, Radial Aluminum Electrolytic Capacitors (Hot)
JRB - 2000H at 105°C, Radial Aluminum Electrolytic Capacitors(Hot)
JRC - 2000H at 105°C, Radial Aluminum Electrolytic Capacitors
JRD - 5000H at 105°C, Radial Aluminum Electrolytic Capacitors
JRG - 10000H at 105°C, Radial Aluminum Electrolytic Capacitors

More information please check below link:
http://www.jbcapacitors.com/pdf/jb-Radial-Electrolytic-Capacitors-Leaflet.pdf