jb Popular series for Audio application

Hello, dear Clients, you may know our Audio series capacitors is popular in market.
We cooperate with famous audio manufacturers who around the world, such as KEF is one of our clients.
jb Capacitors Company provide wide range of capacitor used for Amplifier, loudspeaker, audio crossover..etc.
Now we list some of our popular series for your reference. If you need sample for testing, welcome to contact us, we are willing to support you.


jb Capacitors Tell You Difference Between Electrolytic and Ceramic Capacitor

Electrolytic VS  Ceramic Capacitor

A capacitor is an electrical component which is able to store electrical charges. Capacitors are also known as condensers. Ceramic capacitors and electrolytic capacitors are two main types of capacitors that are widely used in electrical and electronic components. The ceramic capacitor uses a thin ceramic layer as the dielectric medium whereas the electrolytic capacitor uses an ionic liquid as one of the sheets of the capacitor. In this article, we are going to discuss what electrolytic capacitor and ceramic capacitor are, their properties, and finally a comparison between electrolytic capacitor and ceramic capacitor and summarize the difference between ceramic capacitors and electrolytic capacitors.

What is a Ceramic Capacitor?

In order to understand what a ceramic capacitor is one must first understand what a capacitor is in general. Capacitors are devices that are used to store charges. Capacitors are also known as condensers. Commercially used capacitors are made of two metal foils with a dielectric medium in between them rolled into a cylinder. The capacitance is the main property of a capacitor.
The capacitance of an object is a measurement of the amount of charges that object can hold without discharging. Capacitance is a very important property in both electronics and electromagnetism. Capacitance is also defined as the ability to store energy in an electric field. For a capacitor, which is having a V voltage difference across the nodes and the maximum amount of charges that can be stored in that system is Q, the capacitance of the system is Q/V, when all are measured in SI units. The unit of the capacitance is farad (F). However, as it is inconvenient to use such a large unit, most of the capacitance values are measured in nF, pF, µF and mF ranges.
In a ceramic capacitor, a thin ceramic layer act as the dielectric medium. A ceramic capacitor has no polarity. Ceramic capacitors are classified into three main classes. Class I capacitors have better accuracy and low volumetric efficiency whereas class III capacitors have low accuracy and high volumetric efficiency.

What is an Electrolytic Capacitor?

An electrolytic capacitor is made by having an ionic liquid as one of the conducting plates of the capacitor. Most of the electrolyte capacitors are polarized. This means the voltage at the anode cannot become negative relative to the voltage applied to the cathode. If this happens, the capacitor becomes corrupted by ion exchange. Electrolytic capacitors are famous for having higher volumetric efficiency. This means a small capacitor is able to hold larger amount of charges than a ceramic capacitor of the same size.

What is the difference between Ceramic Capacitor and Electrolytic Capacitor?

• Ceramic capacitor has two metal sheets at the terminals to store charges. The electrolytic capacitor has one metal sheet and an ionic liquid as the two terminals.
• Electrolytic capacitors are capable of holding more charges per volume than ceramic ones.
• Most of the electrolyte capacitors are polarized, but ceramic capacitors are never polarized
From jb Capacitors Company sales department

Learn more Imformation:http://www.jbcapacitors.com/

jb Capacitors in Audio Applications of Tube Amplifier

Today we see a tube amplifier from our customer, its configuration is really amazing.
There are some of products, which he use in this products. what about you? welcome to send to us your inquiry for the capacitors.
We can provide you excellent service, professional support.

JFGD axial flat MKP film capacitor: 1.5uF 630V
105’C Radial electrolytic capacitors 470UF 63V
105’C Snap-in electrolytic capacitors, 400V
JFL polypropylene film capacitors 0.22UF 630V 

jb Shares What is Electrolytic Capacitors And Aluminum Electrolytic Capacitors

Electrolytic Capacitors

Electrolytic capacitors differ from other capacitors. One of the plates in an electrolytic capacitor is a liquid. 
The liquid is an electrolyte (an ion bearing liquid that conducts electricity, which is what gives the electrolytic capacitor its name. 
During the manufacturing process, a thin layer of oxide builds up between the electrolyte and the plate. 
This thin layer of oxide forms the insulating dielectric. Because the plates are large and the dielectric is thin, the capacity to store electricity is larger in electrolytic capacitors than in any other type. 
This makes electrolytic capacitors the capacitor of choice when building power supplies.

Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors have an aluminum plate and the dielectric is aluminum oxide. 
This type of electrolytic capacitor is inexpensive and is found in many power supplies. 
Their range in value from 1 farad down to less than a microfarad. E-caps can work voltages up to several hundred volts. 
Aluminum electrolytic capacitors can break down if they go through long periods of no power (the oxide breaks down.) 
Elco caps can be rejuvenated if connected to a power supply and a resistor--the long low current restores the oxide.
Elco caps are not suitable for working with high frequencies, and they're also used in radio frequency amplifiers or anywhere there are high currents and low frequencies.

-----From jb Capacitors Company sales department

jb Welcome to Visit Our Booth at Munich Electronica 2014, Germany

jb Capacitors Company will exhibit at Munich Electronica in Germany again this November, from 11th. to 14th. November. 

Welcome you to visit our booth at B6.536/3, we prepared many free samples, leaflets, small gifts, welcome to fetch them.

jb Capacitors Company is a prefessional ISO manufacturer, mainly produce film capacitors and Electrolytic capacitors. Below are our most strong series, welcome any your inquiry.

Film Capacitors:
JFA- Mylar polyester capacitor
JFB- Metallized polyester film capacitors--dipped type
JFD- tallized polyester film capacitors--Box type
JFL- Metallized Polypropylene film capacitors, dipped type 
JFP-High voltagel metallized polypropylene film capacitors, dipped type (1000VDC ~2000VDC)
JFM- Metallized polypropylene film capacitors, Box type
JFQ- Double sided metallized polypropylene film capacitors, box type
JFV- X2 Metallized polypropylene film capacitors, ENEC VDE UL 
JFS- Motor Capacitors, total 28 types
JFG- Axial Metallized polyester & Polypropylene film capacitors (4 types)
JFX- Premium Metallized polypropylene film capacitors, Axial type


Electrolytic capacitors: 
Radial Leaded Aluminum Electrolytic capacitors (JRA, JRB, JRC,JRD)
SMD Aluminum electrolytic capacitors. (JCS,JCK,JCC,JCD,JCE, JCL JCN,JCZ)
Snap-in Aluminum Electrolytic capacitors.(JNC,JNE,JNG,JNK)
Screw Aluminum Electrolytic capacitors.(JMJ,JML,JMN,JMQ)
Lug type Aluminum electrolytic capacitors(JSU, JSS,JSW,JST)


jb capacitors provides custom-made leaflets

Dear jb Customer,
Good day !
We jb capacitors company always give great support to our customers. Below we have four green leaflets prepared for our customers.
We welcome custom-made the leaflets, you will find your company information on the front page.
Please refer to below details  for your kind reference.

1. jb capacitors green leaflets----including all our product lines: 4PP
Mylar polyester fim capacitors, Metallized Polyester Film Capacitors, Metallized Polypropylene Film Capacitors,
X2 MKP Film Capacitors, Motor Starting/Motor Run Film Capacitors;
SMD/CHIP Aluminum Electrolytic Capacitors, Snap in, Screw and Photo Flash Aluminum Electrolytic Capacitors. 
2. X2 MKP Film Capacitors green leaflets---JFV series : 2PP
JFV --X2 Metallized Polypropylene Film Capacitors, also called Class X2 Interference Suppression MKP Film Ccapacitors.
It is is our top sellers on markets, with ENEC, VDE, UL safety approvals for 275VAC, 305VAC, 310VAC. 
3. Audio Film Capacitors leafletes---JFX series : 2PP
JFX--Premium Metallized Polypropylene Film Capacitors , Axial lead. 
It is specially used for high end audi products,eg: Amplifier, Loudspeakers, Cross-over, juke-box and high frequency network.
4. The Smart Folded Leaflets ----including all our product lines: 2PP
The Smart Folded Leaflets--- only has one piece of paper, on each side of the paper we will do some design, when you fold the paper, you can only see two side, that is like a name card . One side is our company comtact information, another side is your company contact information (incluing company logo, name, contacts). But when you unfold the paper, you can find our products photos . Very convenient. ^_^
Folded size:8cm*5cm;Unfold size :23.5cm*36cm.
Please let me know freely if you are interested in this offer.
We are ready to help you in promoting jb capacitors products and win more business chance.

jb Large Can Type Aluminum Electrolytic Capacitors---Screw, Snap-in, Lug type

jb capacitors company produce the top high quality for large can type aluminum electrolytic capacitors in China. 
Mainly are Screw terminals, snap-in pins, and lug terminals, below pictures for your kindly information. 

contactinfo@jbcapacitors.com for details.

jb How long is the working time for electrolytic capacitors?

 it depends on different types and values and customer special requirements. jb capacitors company have many options for you. Snap-in e-cap, Screw type e-cap, Photo flash e-cap. Load life from 2000hrs to 5000hrs, both 85C & 105 are available. Pls. visit our website www.jbcapacitors.com and contact us for more detail information.