jb Tell You Some Aluminum Electrolytic Capacitors' Features and Application

Aluminum electrolytic capacitors have always been a popular choice for power supply, due to its low cost. However, their life have limited , and easy to influenced by extreme conditions ,main problem is high temperature and low temperature. Aluminum Electrolytic capacitors is made by aluminum foil and electrolyte. This electrolyte will evaporate during the life of the capacitor, it will change its electrical properties step by step. If the capacitor fails, it will be violent reactions: release flammable, corrosive gases.

The electrolyte evaporation's speed all depend on capacitor temperature. Operating temperature dropped 10 degrees, the capacitor's life will be doubled. Usually, the capacitors' life usually means under maximum rated temperature. The typical rated life is 1000 hours at 105 degrees Celsius. In the application of LED which requirement life time 25000hours, the aluminum electrolytic capacitor will have problem. Cause if want to reach to 25000hours, the working temperature should not more than 65°C. But LED working temperature can reach to 125°C at most. Though some famous manufacturer declare their can reach. but aluminum electrolytic capacitors still is limited LED Lamp's life.

How to solve this problem? First, you may be chose to increase the rated voltage of the capacitor, to reduce the probability of electrolyte failure. However, the way will make the capacitor equivalent series resistance (ESR) more higher than before. Since the capacitor will generally have a high ripple current stress, so this high internal resistance will bring additional power consumption and increase the capacitor temperature. Failure rate will increases by increasing temperature. When the capacitor temperature is low, ESR increased dramatically. In this case,-40°C, the resistance increases by orders of magnitude. This will affect the power performance in many ways. If the capacitor is used for output of a switching power supply, the output ripple voltage was increased by orders of magnitude. Further, in the above zero frequency and the output capacitor ESR is formed, which allows an order of magnitude increase in the loop gain, which affects the control loop. This produces a stable oscillation power. In order to meet this strong vibration, the control loop will usually make a huge compromise in terms of space and operate at higher temperatures.

In short, the aluminum electrolytic capacitor is typically the lowest cost option. However, you will need to determine whether the application of its shortcomings adversely affected. Through its operating temperature you need to consider their longevity. meanwhile, you should appropriately reduce the rated voltage, so that you can achieve the lowest temperatures, and thus get the longest life. Finally, you need to understand the ESR range must be used so that you can properly design the control loop, to meet the ripple specifications.

 

jb Capacitors Company Released A Series of Axial Aluminum E-caps, Competitive Prices Available Now!!

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 

jb Good Capacitors for Lighting Production Application

Below capacitors can be used in lighting production, do you use any of them? welcome send mail to ask for prices.

"jb" brand is very popular on markets, high quality, good prices and professional shipment support. 
jb is ISO 9001:2008 certificated manufacturer, ENEC, VDE, UL, CE, Reac, RoHS 2.0 certificated 
manufacturer.

Radial electrolytic capacitors 105'C  2000 hours 
22uF    100V +/-20%   DxL=6.3x12mm    P: 2.5mm   Bulk RoHS
47uF    16V +/-20%     DxL=5x11mm        P: 2mm      Bulk RoHS
470uF  35V +/-20%     DxL=10x17mm     P: 5mm     Bulk RoHS

Class X2 film capacitors, ENEC, VDE, UL
0.47uF  275VAC +/-10%    P: 15mm   Bulk RoHS
0.1uF    275VAC +/-10%    P: 15mm   Bulk RoHS

CL21 metallized polyester film capacitors
0.1uF     630V +/-10%     P: 10mm    Bulk RoHS
0.22uF  630V +/-10%      P: 15mm   Bulk RoHS

jb Motor Running Capacitors CBB60

jb specialized in manufacturing Motor Running Capacitors CBB60 with UL approvals. We are just your best choice. Staying with us, you will be pleased with our quality, professional and excellent service.

Features:
Very low loss at high frequency 
Small size and small loss 
High insulation resistance 
Good capacitance stability and self-recovery;

Application: 
Applied to the operation or running of 50Hz (60Hz) single-phase motor, such as washing machine, mini type electromotor as well as household electric appliances.

jb is well prepared for cooperation with all customers in the future. We can provide you the most professional support on technical & marketing side.

jb Best Seller X2 Film Capacitors (310VAC) -JFZ

jb Capacitors manufactures X2 Metallized Polypropylene Film Capacitor, which also named Interference Suppression Capacitors or X2 Safety Capacitors. It is the strongest series in our plastic film capacitors.

jb JFZ-X2 Safety Capacitor, has VDE, ENEC, UL and cUL approvals. 

Application: 
As an across-the-line type noise suppression capacitor, and suitable.
Grid power supply of electronic instruments and electronic equipment, switch, contacts produces a 
spark discharge sites.
Electric tools, lighting, hair dryers, water heaters and other household electrical appliances.

jb Collected Main Application Field of Motor Running Capacitors CBB65

jb Capacitors Company sells high quality and quite competitive prices for Motor Capacitors JFS-23, JFS-24, JFS-25
jb Motor Running Capacitors CBB65 is equipped inside with reliable explosion-proof equipment and highly safe, good stability, resistance the impact of current ,overload and strong. By vacum impregnation with aluminum package, it has good self-healing characteristic and long life-span.

Rated Voltage
(VAC)

Nominal Capacitance
(μF)

With Safety
Function

Size(mm)

 

D

H

 

370/450

2,3,4,5,6,7.5,8,10,12.5,
14,15,16,17,18,20,25,
30,35,40,45,50,55,
60,65,70,80,100,
20+1.5,20+5, 25+1.5…

S2

40,45, 
50,55, 
60

55,65, 
75,85, 
95,100,
110,120,
125,130

 
 
 
 
 

Application:
Broadly applied to starting and running of AC single-phase motors at 50Hz(60Hz) frequency for family air conditioners and high power illuminators for the sake of power factor compensation.

More details of jb Motor Running Capacitors CBB65, please visit our official website:
http://www.jbcapacitors.com/Plastic-Film-Capacitors/JFS-Motor-Capacitor.html.

jb CBB61 Motor Running Film Capacitors JFS-7 Wire and Box Type

Motor Capacitor is famous for low dissipation factor, lower temperature rise and high reliability and durability. Welcome to try jb CBB61 Motor Running Film Capacitors JFS-7 Wire and Box Type. It is a good choice for you.

Specification: 
Operating Condition: -40℃~+85℃
Capacitance Range: 1uF~20Uf
Rated Voltage: 250V 450V (AC)
Dissipation Factor: ≤0.003 1KHz

Application: ceiling fan, exhaust fan, dynamotor, home appliance etc. Motor Running Film Capacitors JFS-7 can be used in an electric motor under lower starting electric current, can obtain higher torque. It is widely applied in single phase. 

Should you wanna know more about JFS-7, please visit: http://www.jbcapacitors.com/Plastic-Film-Capacitors/JFS-Motor-Capacitor.html
We will be happy to give you a quotation upon receipt of your detailed requirements.

jb Top Seller --X2 Capacitors with 310VAC

As you know, our JFZ X2 MKP Capacitors are very hot in current market, many customers confirm orders now, do you know why? 
Here we would like to share you more advantage about this series.

★ Short delivery, free samples, some popular items are stock available.

★ Very competitive price with VDE, ENEC and UL approvals, high quality approved by Bosch, Linak, Emerson etc.... big project before.

★ Widely application: Power supplier, Power meter, LED/lighting, Electronic ballasts, Remote control, Electronic toys, Household appliances, Communication products, Security products, Digital products......

★ Equivalent Cross: Kemet (Arcotronics)R46, Epcos B81130, Vishay MKP 3382,3392, Wima MK3 X2, Panasonic ECQU, Pilkor PCX2 337,339...

For information, please send inquiry to our sales at once, thank you! 

-----From jb Capacitors Sales department
       We're just your best choice

jb JFD Box MKT Film Capacitors

jb JFD box MKT film capacitors, do you know it? good prices with excellent and stable quality.

Its box technology and small size make it's more easier for your PCB assembly.

Cross reference: Kemet R60, Wima MKS 4, Vishay MKT 1820, MKT 1822, Epcos B 32521~B 32524

Application: General Purpose

Standard lead length: 18mm minimum, can do longer or cut lead.
Package: Bulk & Ammo
Popular voltage: 1J (63V), 2A (100V), 2C (160V), 2E (250V), 2G (400V), 2J (630V), 3A (1000V)

jb JFS-6 Box Shape and Plastics Case CBB61 Motor Capacitor

When talking about motor capacitors, the first idea come into your mind is some overseas brand, such as Epcos, AVX and Kemet.  
HongKong brand " jb "  also offers a wide range of products for motor start and run applications in plastic and aluminum cans.  
JFS - 6 is one of the most popular items in our production line.

Application:
The capacitors described in the current catalogue are specifically designed for the start and the run of single-phase electric motors. 
Usually the capacitor is connected in series to an inductive winding into an auxiliary circuit for a single-phase motor or in parallel  phase/phase into three-phase motors when powered by a single-phase circuit.

Safety Class:
The degreee of safety is marked on the capacitor according to the following symbols:
(P2) the capacitor has been designed to fail only in case of circuit cut-off and it is protected against fire and electrocution risk.
(P1) the capacitor can fail either by a circuit cut-off or by a short-circuit and it is protected against fire and electrocution risk.
(P0) in case of failure, the capacitor does not have any particular protection.

For more details please check : 
http://www.jbcapacitors.com/Plastic-Film-Capacitors/JFS-Motor-Capacitor.html