jbcapacitors blog

jb Capacitors Company produce Uncoated Stacked metallized polyester film capacitors with Short Delivery Time, Competitive Prices, good quality.

Cross to Epcos B32560~B32564 series, General purpose(Stacked) SilverCap. 

Normally used in SMPS, Converters, Electronics ballasts, Compact Fluorescent lamps(CFL), Ignitions etc.. Our prices are very attractive, lead time is short. 

jb Capacitors Strong Products:
JFA--Mylar polyester film capacitors
JFB--Metallized polyester film capacitors
JFL--Metallized polypropylene film capacitors
JFG--Axial lead film capacitor
JFV--X2 275VAC met polypropylene film capacitors
JFZ--X2 310VAC met polypropylene film capacitors
JFP--High voltage metallized polypropylene cap
JFQ--High voltage metallized polypropylene cap
JFS--Motor Running capacitors
JFX--Premium metallized polypropylene Cap
JSX--Superior metallized polypropylene Cap
JCS--85°C SMD electrolytic capacitor
JCK--105°C SMD electrolytic capacitor
JRA--85°C Radial Aluminum Electrolytic Capacitor
JRB--105°C Radial Aluminum Electrolytic Capacitor
JNE--105°C Snap Aluminum Electrolytic Capacitor
JMJ--85°C Screw Aluminum Electrolytic Capacitor
JSU--55°C Lug Aluminum Electrolytic Capacitor

jb Capacitors Company  are professional ISO manufacturer, our products prices and lead time are very competitive, with UL,ENEC VDE approvals, quality is very good.

Please check below our most strong series pictures, which are the most popular series in the market.

1. JFX - Premium Metallized Polypropylene Film Capacitors --Axial type --- Mainly used in Audio enquipment, cross over, our MOQ is low, prices unbeatable, excellent replacements of Mundorf, Jantzen Audio etc..

2. JFA - Mylar Polyester Film Capacitors --- Mainly used in Energy saving lamps, demand is huge, cost is low.

3. JFB - Metallized Polyester Film Capacitors--Dipped type --- Cross to Vishay MKT 368, Epcos B32591~B32594, mainly used in power supplies, electronics ballasts etc..our prices & lead time are very good.

4. JFD - Metallized Polyester Film Capacitors --Box type --- Cross to Arcotronics R60, Epcos B32520~32524, European customers prefer it, as it is box type, nicer.

5. JFG - Axial Metallized Polyeter & Polypropylene Film Capacitors --- Cross to Arcotronics(Kemet) MKT A50, MKP A70 ,  Vishay MKT1813, MKP1839, 1845, jb capacitors prices are unbeatable.

6. JFP - High Voltage Metallized Polypropylene Film Capacitors (1000V~2000VDC) --- Mainly used in electronics ballast, cross to Epcos B32692, prices and lead time unbetable, quality is very reliable.

7. JFV - X2 Metallized Polypropylene Film Capacitors (ENEC VDE UL Approvals) --- jb to sellers, cross to Arcotronics R46, prices & lead time are very good.

Popular jb Capacitors Product Series

Below are the most popular and strongest series from jb Capacitors:

• JFP – Metallized Polypropylene Film Capacitors (Equivalent to CBB-81)
• JFG – Axial (Leaded) Film Capacitors (Equivalent to CL20)
• JFA – Mylar Polyester Film Capacitors (Equivalent to CL11)
• JFB – Metallized Polyester Film Capacitors (Equivalent to K73-17)
• JFV – X2 Metallized Polypropylene Film Capacitors (X2 Capacitors)

These series are widely used in various applications and known for their high performance and reliability.

Ammo/Tape pack Dipped type Metallized polyester film capacitors ---JFB Metallized Polyester Film capacitors
 
One of the most strong series film capacitors from jb capacitors company, is JFB Metallized polyester film capacitors, demand is huge in the market. jb sell very good quality and enjoy very good reputation.

Capacitance range from 1000pF to 10uF, voltage range from 63V to 630VDC, very wide applications.
Cross guide: Epcos B32591~B32594, Vishay MKT368, Panasonic ECQE, K73-17, CL21 etc..

Main applications: switch power supplies, electronics ballasts, emergency lamps, compact fluorescent lamps, white goods etc..
jb capacitors company can offer different lead length & package, ammo packing picture please refer to below, welcome to send inquiry to info@jbcapacitors.com for quote.

Film capacitors, dipped type film capacitors, MKT film capacitors, MKP film capacitors, Metallized polypropylene film capacitors, Metallized polyester film capacitors

jb Capacitors Company produces a full series of film capacitors, with dipped type film capacitors being one of our strong series. We offer high-quality products at unbeatable prices!

Below are our most strong series:
 
JFB- Metallized polyester film capacitors - dipped type, CL21 series, widely demanded in the market
JFC- AC metallized polyester film capacitor - dipped type
JFL- Metallized polypropylene film capacitor - dipped type
JFP- High voltage metallized polypropylene film capacitors - CBB81, widely used in electronic ballasts
JFE- Mini metallized polyester film capacitor - dipped type, small size, pitch size 5mm, 7.5mm
JFA- Mylar polyester film capacitors - low cost, widely used in CFLs and lamps
 
For more details, please contact us at  info@jbcapacitors.com 

Si vous êtes spécialisés en composant électronique et vous avez les demandes en condensateur, si vous êtes un distributeur qui cherche les condensateur pour votre client, si vous êtes un fabricant et vous cherchez un condensateur pour soutenir vos projets, vous pouvez cliquer ici 
www.jbcapacitors.hk et découvrir jb capacitors.

Vous allez trouver jb capacitors est très fort en toutes les séries de MKT,MKP Films condensateur, JFV-X2 Métallisé, Polypropylène Films condensateur, et JFB sont les meilleurs ventes, et maintenant jb capacitors peut même offrir la série de JFQ, cette série est cessé l’année dernière a cause du manque de matière.

La série de JFQ est haute terminal Films condensateur en Chine, double faces Métallisé, Polypropylène Films condensateur, peu de fournisseur peut le fabriquer. Mais nous pouvons vous l’offrir avec un court délais de 5-6 semaines.

Type boîte avec tres petite taille et haute rayon de voltage et large rayon de capacité, il peut remplacer certain Epcos, Evox, Arcotronics Films condensateur.

A part des différents type de condensateurs, nous somme aussi professionnel pour large can électronique aluminium Condensateurs, Snap-in, Screw, Lug type, SMD type standard. Nous attendons une l’occasion de vous présenter notre devis compétitive avec bon prix, court délais et haute qualités.

On Nov 9th~12th,2010, jb Capacitors Company exhibit at Electronica 2010 in Munich, Germany.
Booth No. is B6.437/10.

Below you can see our green booth photos. Our booth are very popular, many customers visited our booth with great pleasure.
Our exhibition are very successful.

On the show, we exhibit below, also welcome to contact our sales if you are interested in our leafletes, sample kits, and green bags, and samples.

1. jb Capacitors green leaflets
2. jb Capacitors green sample kits
3. jb Capacitors green bags
4. jb Capacitors samples: including below different series of samples:

JFB - Metallized Polyester Film Capacitor
0.1uF 250V +/-10% P:10mm Bulk RoHS 
0.047uF 400V +/-10% P:10mm Bulk RoHS 
0.47uF 250V +/-10% P:15mm Bulk RoHS

JFD - Box Type Metallized Polyester Film Capacitor
0.1uF 250V +/-10% P:15mm Bulk RoHS

JFJ - Mini Box Stacked Metallized Polyester Film Capacitor
0.047uF/63V +/-5% P:5mm Bulk RoHS 
0.15uF 100V +/-5% P: 5mm Bulk RoHS
0.22uF 63V +/-5% P:5mm Bulk RoHS
0.1uF 100V +/-5% P:5mm 7.2*6.5*2.5mm Bulk RoHS

JFL - Metallized Polypropylene Film Capacitor
0.33uF 100V +/-10% P:15mm Bulk RoHS

Axial Metallized Polyester & Polypropylene Film Capacitor 
JFGA 0.22uF 100V +/-10% 15*7MM Bulk RoHS
JFGA 0.33uF 630VDC +/-10% Bulk RoHS

JFX - Premium Met Polypropylene Film Capacitors – Axial
4.7uF 250V +/-5% Bulk RoHS

JFN - X2 Metallized Polypropylene Film Capacitor 
0.1uF 275VAC +/-10% P:15mm Bulk RoHS
0.15uF 275VAC +/-10% P:15mm Bulk RoHS 
0.22uF 275VAC +/-10% P:15mm Bulk RoHS
0.1uF 275VAC +/-10% P:10mm Bulk RoHS 
0.33uF 275VAC +/-10% P:15mm Bulk RoHS 
0.47uF 275VAC +/-10% P:22.5mm Bulk RoHS 
0.068uF 275VAC +/-10% P:10mm Bulk RoHS

JFO - X2 Metallized Polypropylene Film Capacitor
0.047uF 275VAC +/-10% P:10mm Bulk RoHS
0.1uF 275VAC +/-10% P:10mm Bulk RoHS
0.33uF 275VAC +/-10% P:15mm Bulk RoHS
0.47uF 275VAC +/-10% P:15mm Bulk RoHS

JFP - High Voltage Met Polypropylene Film Capacitor
470pF 2000V +/-10% P:15mm Bulk RoHS

JCS--SMD - Aluminum Electrolytic Capacitors
10uF 50V +/-20% 6.3x5.4mm 2000h at 85°C
22uF 16V +/-20% Size:4*5.4mm 2000h at 85°C

JNE--Snap in Aluminum Electrolytic Capacitors
470uF 200V +/-20% 2000h 25x30mm P:10mm 2000h at 105°C Bulk RoHS

JMJ--Screw terminals Aluminum Electrolytic Capacitors
22000uF 63V +/-20% Size: 51x80mm 2000h at 85°C Bulk RoHS

Our jb capacitors company exhibit in 2010 ElectronicsAsia HK show, many customers visited our green booth , our three sales girls who were wearing green jackets , stand in the green booth and welcome all the customers all over the world.

During the meeting, we display below our strong series samples, green bags, green leaflets and sample kits to customers , and they check our quality and send us their inquires. All of us enjoy the wonderful moment in the HK fair.

• JFA--Mylar polyester film capacitor
• JFB--Metallized polyester film capacitor
• JFD--Box metallized polyester film capacitors
• JFG--Axial polyester&polypropylene film capacitors
• JFL--Metallized polypropylene film capacitor
• JFO--X2 metallized polypropylene film capacitor
• JFN--X2 Metallized polypropylene film capacitors
• JFP--High voltage metallized polypropylene film capacitor
• JFX--Preminum metallized polypropylene film capacitors, for high-end audio products
• JCS,JCK--Standard SMD Aluminum Electrolytic capacitors
• Snap in terminals, Screw terminals and lug terminals for photo flash Aluminum Electrolytic capacitors

Our jb capacitors company sincerely hope to work with all the customers in the world. And we will exhibit in HK fair every year, welcome you visit our booth in 2011.

Next month on November 9th~12th, JB capacitors company will exhibit Electronica 2010 in Munich, Germany. Welcome to visit our booth No. B6.437/10

电容降压的工作原理并不复杂。他的工作原理是利用电容在一定的交流信号频率下产生的容抗来限制最大工作电流。

例如，在50Hz的工频条件下，一个1uF的电容所产生的容抗约为3180欧姆。当220V的交流电压加在电容器的两端，则流过电容的最大电流约为70mA。虽然流过电容的电流有70mA，但在电容器上并不产生功耗，因为如果电容是一个理想电容，则流过电容的电流为虚部电流，它所作的功为无功功率。

根据这个特点，我们如果在一个1uF的电容器上再串联一个阻性元件，则阻性元件两端所得到的电压和它所产生的功耗完全取决于这个阻性元件的特性。例如，我们将一个110V/8W的灯泡与一个1uF的电容串联，在接到220V/50Hz的交流电压上，灯泡被点亮，发出正常的亮度而不会被烧毁。因为110V/8W的灯泡所需的电流为8W/110V=72mA，它与1uF电容所产生的限流特性相吻合。同理，我们也可以将5W/65V的灯泡与1uF电容串联接到220V/50Hz的交流电上，灯泡同样会被点亮，而不会被烧毁。因为5W/65V的灯泡的工作电流也约为70mA。

因此，电容降压实际上是利用容抗限流。而电容器实际上起到一个限制电流和动态分配电容器和负载两端电压的角色。

采用电容降压时应注意以下几点：

• 1.根据负载的电流大小和交流电的工作频率选取适当的电容，而不是依据负载的电压和功率。
• 2.限流电容必须采用无极性电容，绝对不能采用电解电容。而且电容的耐压须在400V以上。最理想的电容为铁壳油浸电容。
• 3.电容降压不能用于大功率条件，因为不安全。
• 4.电容降压不适合动态负载条件。
• 5.同样，电容降压不适合容性和感性负载。
• 6.当需要直流工作时，尽量采用半波整流。不建议采用桥式整流。而且要满足恒定负载的条件。

以上是电容降压工作原理的简单介绍。其实电阻、电容和电感作为电子电路的基本元件，熟知它们的特性并灵活地应用它们是非常重要的。