jbcapacitors blog

jb Capacitors Company are an ISO manufacturer, we provide our products with competitive price and reliable quality.

Short delivery time, such as 5 to 7 weeks. Some hot items can be ready in 3 weeks.

Our strong capacitors series: Plastic film capacitors, Aluminum radial Ecaps, SMD Aluminum Ecaps, Polymer Aluminum Solid Capacitors, Ceramic Capacitors, Tantalum Capacitors and Super Capacitors.

We have wide series to be the excellent replacement of Epcos, Panasonic, Samwha, Jamicon, Nichicon, NIPPON CHEMI-CON, Rubycon, Elna, SAMXON, and YAGEO.

Please contact us with your inquiry! info@jbcapacitors.com
Also, welcome to send me your exact inquiry or ask for FREE SAMPLES!

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

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

Do you use or buy Snap-in Aluminum Elco Cap?
We have below two best series, with excellent quality, low MOQ support, Quick lead time, also widely used in Power supplier, Power meter, lighting, amplifier....applications.

JNC - 2000H at 85°C, Snap-in Aluminum Electrolytic Capacitor, for Speaker Network 
Can replacement to:  Epcso B41231, Nippon Chemi-con SMQ, Nichicon LS, Panasonic TS-UQ, Samwha HC series, Kendeil K26 sereis, Yageo LH series.

JNE - 2000H at 105°C, Miniaturized, Snap-in Aluminum Electrolytic Capacitor 
Can replacement to: Epcos B41252, B43515, B43525  Chemi-con KMT/KMR, Nichicon GL, AK, AQ, Panasonic HE series, Kendeil K25 series, Yagoe LG series.

Do you want to try us? Welcome your inquiry or ask for samples, we'll not let you down. 

jb Capacitors Company
----We are just your best choice

jb Capacitors company produce large can type aluminum electrolytic capacitors, the top high quality with most competitive prices.
Flexible quantity and short delivery time support. Please contact our sales for details. 

JMJ - 2000H at 85°C, Miniaturized, Screw Aluminum Electrolytic Capacitor
JML - 2000H at 105°C Screw Aluminum Electrolytic Capacitor
JMN - 5000H at 85°C Screw Aluminum Electrolytic Capacitor, long time
JMQ - 5000H at 105°C Screw Aluminum Electrolytic Capacitor, for Inverter

High quality, short delivery time, competitive prices, good customer service, contact us you will get all 
above. We have produce many kinds of other capacitors, contact us for details. 

We produce high quality electrolytic capacitors, Except for SMD and radial type, we also produce large can type, such as Screw terminals, we offer very competitive prices and flexible MOQ. 
High ripple current, Used for computers, communication powers, Hi-ripple circuit of electric vehicle, electric train, general-purpose inverter etc..

JMJ- Screw aluminum electrolytic capacitors, 2000hours at 85°C

JML- Screw aluminum electrolytic capacitors, 2000hours at 105°C

JMN- Screw aluminum electrolytic capacitors, 5000hours at 85°C

JMQ- Screw aluminum electrolytic capacitors, 5000hours at 105°C 

jb Capacitors Company provides a wide selection of standard screw terminal, snap-in, lug type and surface mount aluminum electrolytic capacitors.
We specialized at designing high ripple current screw terminal and snap-in capacitors that meet your exact application requirements.

In fact, our aluminum electrolytic capacitors are so reliable they are built into and used extensively in the most critical applications.
Today we recommend our jb Screw Aluminum Electrolytic Capacitor JMJ 2000H at 85'C to you.

See more at: 
http://www.jbcapacitors.com/Aluminum-Electrolytic-Capacitors/JMJ-2000H-at-85-Miniaturized-Screw-Aluminum-Electrolytic-Capacitor.html

Basic construction:
1, Two pieces of foils interleaved with an absorbent paper build up the key element of an Aluminium Electrolytic Capacitor, and all these materials should be wound tightly into a cylinder shape
2, The positive foil, or the anode foil are all made from pure aluminium foil. The aluminium oxide dielectric has been formed electrolytically on the surface.. 
3, The foil has been etched to make the effective surface area more larger, and the area of the anode is usually 30–100 times larger than the plan area of the foil.

Figure: How dielectric structure works in an Aluminium Electrolytic Capacitor ?
4, The other plate is a combination of high-absorption paper impregnated with an electrolyte, in contact with a cathode foil. 
5, The electrolyte is there to make good contact with the anode, by permeating its etched structure, and also to repair any flaws in the oxide layer when the capacitor is polarised. 
6, The function of the aluminium cathode foil is to reduce the series resistance of the capacitor by making contact with the paper over a wide area.

jb Capacitors started the development of Screw Aluminum Electrolytic Capacitor with large capacitance and for high ripple current, ahead of other companies. 

Now, our capacitors for mid- to high-voltage have a high market share. Our Screw Terminal Type Aluminum Electrolytic Capacitors are used for inverters for computers, communication powers Hi-ripple circuit of electric vehicle, electric train, general-purpose inverter, in the fields that are required to offer high reliability. Following JML is one of our most popular series:

If you backed from Summer holiday, welcome to send your Inquiry!

JML - Screw Aluminum Electrolytic Capacitor, 2000H at 105'C, Long Life

Features:
★. Load life of 2000 hours at 105'C 
★. Size may be selected 
★. High ripple current 
★. Capacitance, Voltage: 2200uF~56000uF; 100V~400V.DC
★. Used for computers, communication powers Hi-ripple circuit of electric vehicle, electric train, general-purpose inverter