jbcapacitors blog

Our jb Capacitors Company produce E-cap since 1980, with high quality, fast delivery time & very good prices.

Many big distributor and manufacutres buy E-cap from us for long time, below is one of our customer’s good feedback. We would like to share to all of you :

We are buying your E-caps since 2009, and so far we have good track record with them.

We are in the high quality custom power supply business. Most of our products are designed for 30 years operating life. As you noticed, our purchasing quantities steadily increased for your E-capacitors, and we plan to do so.

However, the past taught us to be tedious to collect reliability record on many critical items, mainly E-capacitors.

As said, in the coming year, we will increase our purchases from JP Capacitor, since we are very happy with your service, support and response times.

Please check our products link: http://www.jbcapacitors.com/Aluminum-Electrolytic-Capacitors/ and send us more E-cap inquiries. We’re always ready to give full support for you.

From jb Capacitors Company
----Just your best choice

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

Feacture:

• 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

Application:

• 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:

http://www.jbcapacitors.com/pdf/JAC-Bi-Polarized-Axial-Aluminum-Electrolytic-Capacitors-For-Audio-System.pdf

http://www.jbcapacitors.com/pdf/JAD-Bi-Polarized-Axial-Aluminum-Electrolytic-Capacitors-For-Audio-System.pdf

http://www.jbcapacitors.com/pdf/JAE-Bi-Polarized-Axial-Aluminum-Electrolytic-Capacitors-For-Audio-System.pdf

http://www.jbcapacitors.com/pdf/JAF-Bi-Polarized-Axial-Aluminum-Electrolytic-Capacitors-For-Audio-System.pdf 

Today we introduce the Main Methods of Testing E-cap Lifetime. 

Usually we have two methods for testing lifetime, please find more detail information as below:

1. Normal testing: (Periodic sampling is conducted every four months)
The environment temperature test: 20 ℃~25 ℃     
Relative humidity: 45%-75%    
Relative air pressure: 86kpa-106 kpa 
Inspection items: High temperature 105 ℃ storage 3000 Hours      
High temperature life test the durability:  3000 Hours 

For above test, we have exact equipment for testing, after testing, the real test data can prove the product of real lifetime. 

2. Destructive testing: (do the regular sampling inspection every 2 months)
Put the capacitors in the oven, the temperature raise 10 degrees (for example: if the capacitors' oringinal temperature is 105 ℃, it needs rise to 115 ℃). 
let current go through (should be the capacitor's current),  then the capacitors' lifetime will decay half. (it means, 3000 Hours becomes 1500 hours), after testing 63 days, will take out capacitors and see if it can still work or not.

You are kindly to check more E-caps information from our website: 
http://www.jbcapacitors.com/Aluminum-Electrolytic-Capacitors/

From jb Capacitors Company 
-- Just your best choice

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 !

Good news!  Recently we released another Radial electrolytic capacitors---JRQ series. The support is very good.

Are you looking for such Bi-Polaried Radial E-cap? Welcome to send us inquiry at once.

JRQ - 1000H at 105C, Bi-Polaried Radial Aluminum Electrolytic Capacitor

*  Bi-Polarized 
*  105C 1000 hours 
*  Used in polarity reverse and change circuits 
*  Operating Temperature Range:  -40C~+105C
*  Capacitance Tolerance: (25°C, 120Hz) ±20% 
*  Leakage Current: (μA) I≤0.03CV + 3(μA) (1minute)

PDF datasheet: http://www.jbcapacitors.com/pdf/JRQ-105-Bi-Polaried-Radial-Aluminum-Electrolytic-Capacitors.pdf

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

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

Elektrolitik kondansatorlerde dielektrik madde olarak asit borik eriyigi ya da borakslı elektrolitler bulunur. İletken levhalar ise aluminyum ya da tantalyum plakalardır. Elektrolitik kondansatorler, kutuplu ya da kutupsuz olarak uretilirler. Kutuplu olan kondansatorler DC devrelere baglanırken artı ve eksi uclara dikkat edilmelidir. Yanlıs yapılan baglantılarda anotta bulunan oksit tabakası metal yuzeyi kısa devre edip, yuksek ısı olusumuna ve kondansatorun patlamasına yol acabilir.

Elektrolitik kondansatorler sıvılı tip ve kuru tip olarak ikiye ayrılır. Sıvılı tip elektrolitik kondansatorler sadece DC devrelerde kullanılabilen, pozitif levha olarak aluminyum barındıran kondansatorlerdir. 
Bu tip kondansatorlere DC akım uygulandıgında, pozitif levha üzerinde yalıtkan bir oksit tabakası oluşarak dielektrik gibi davranır. Olusan bu tabaka cok ince oldugundan kondansatorun kapasitesi yuksek olur. Kuru tip elektrolitik kondansatorlerde ise elektrolitik sıvı yerine boraks eriyigi emdirilmis kagıt ya da bez kullanılır.

Elektrolitik kondansatorlerde bulunan elektrolitik sıvısı asırı sıcak nedeniyle zamanla kurumaya basladıgından, kondansatorun kapasite degeri dusebilir ve bu durum hassas devrelerin calısma sisteminde arızalara neden olabilir.

Since 2005, jb Capacitors Company has been specialized in production of Aluminum Electrolytic Capacitors, today we would like to introduce you JCS - the hot seller of SMD Aluminum Electrolytic Capacitors. 
SMD E-Cap looks tiny and special, they can be widely used in so many ways, they’re much easier to place using automated assembly equipment.
JCS is round type, it has the greatest quality and favorable price, also short lead time. You can see the specification form down below.
Here is JCS PDF datasheet, you might want to check it out! http://www.jbcapacitors.com/pdf/JCS-2000H-at-85-SMD-Aluminum-Electrolytic-Capacitor.pdf

I bring you another our strong series radial type aluminum electrolytic capacitors JRK serires, it is miniature, height 7mm THT type aluminum electrolytic capacitors.
We have very competitive prices and short lead time(around 3~4 weeks), Check below our competitive offer, welcome your RFQs. 

JRK-2000hours at 105C', Radial aluminum electrolytic capacitors, miniature size, height 7mm
100uF 6.3V +/-20% DxL=4*7mm Bulk RoHS  QTY: 50kpcs~99kpcs  U$5.2/Kpcs                 QTY:100kpcs or more   US$4.6/kpcs
100uF 10V +/-20% DxL=5*7mm Bulk RoHS  QTY: 50kpcs~99kpcs  U$6.0/Kpcs                 QTY:100kpcs or more   US$5.2kpcs
100uF 16V +/-20% DxL=5*7mm Bulk RoHS  QTY: 50kpcs~99kpcs  U$6.3/Kpcs                 QTY:100kpcs or more   US$5.4/kpcs
220uF 10V +/-20% DxL=6.3*7mm Bulk RoHS QTY: 50kpcs~99kpcs US$9.0/kpcs             QTY:100kpcs or more   US$7.9/kpcs