jbcapacitors blog

Motor capacitors are operation capacitors for single-phase induction motors with auxiliary winding and three-phase motor in steinmetz circuits.

Motor capacitors are self-healing capacitors, i.e. a weak point in the dielectric would become ineffective by itself since the metal coating evaporates at the weak point.

We jb produce 18 types of Motor Start Film Capacitors, with high quaity, we also offer competitive prices and short lead time, we welcome your inquiries to info@jbcapacitors.com

Below are some main applications for motor start capacitors. and our JFS-6 series motor start capacitor picture.
Household and domestic appliances.
Office machines.
Heating and ventilation techniques.
Garden and recreational equipment.

Since 1st of Jan 2013, jb Capacitors Company have new RoHS regulation as for new directive 2011/65/EU of the European Parliament and of the Council of 8th. of June 2011 ( RoHS Recast) Now almost all our products are meet RoHS 2.0 Compliance and Reach Regulation.

You can easily check our products series as below, which are meet RoHS 2.0 compliant and most of our products can meet Reach Regulation, excluding 138 kinds of SVHC.

Meet RoHS 2.0 Compliant:

jb Film Capacitors:  
JFA - Mylar polyester film capacitor
JFB - Metallized Polyester Film capacitor--dipped type
JFD - Box type metallized polyester film capacitor
JFE - Mini metallized polyester film capacitor--dipped type
JFG - Axial Metallized polyester & polypropylene film capacitor
JFX - Premium Metallized polypropylene film capacitors-Axial type
JFL- Metallized polypropylene film capacitor--dipped type
JFM - Box metallized polypropylene film capacitor
JFV - X2 Metallized polypropylene film capacitor
JFP - High voltage metallized polypropylene film capacitor--dipped type
JFJ - Mini Box stacked metallized polyester film capacitors

SMD Aluminum electrolytic capacitors JCK, JCS , meet RoHS 2.0 Compliant and Reach Regulation, excluding 138 kinds of SVHC.

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.

In order to meet more and more customers' production needs, jb Capacitors Company Expanded Production for the Film Capacitors.

JFV - X2 Metallized Polypropylene film capacitors--Productivity----20,000,000pcs / Month

Currently JFV series X2 film capacitors productivity is more than 20,000,000pcs per month, produce high quality with ENEC VDE UL approvals, keep buffer stock for some items to meet customers' short needs, even the cost of materials increased much, we still try to offer customers the most competitive prices! 
(Cross guide--X2 safety capacitors, Epcos B32921~32924, Vishay MKP3362, Arcotronics(Kemet) R46, PHE840M,Panasonic ECQU ..)

JFB - Metallized Polyester Film Capacitors --Productivity -----8,000,000pcs / Month

Currently JFB series Metallized polyester film capacitors productivity is more than 8,000,000pcs per month, we plan to expaned again in coming future, and the demand of dipped type metallized polyester film capacitors is more than before, due to its low cost and wide applications. We produce very good quality with short delivery time and competitive prices. 
(Cross Guide--CL21, K73-17, Epcos B32591~32594, Vishay MKT368, Panasonic ECQE....)

JCS & JCK -- SMD aluminum electrolytic capacitors -- Productivity---150,000,000pcs / Month

jb Capacitors Produce high quality SMD type e-caps since 2005, currently to meet customers' increased demand, we expanded production, now the productivity is more than 150,000,000pcs per month.
jb capacitors focus on standard type SMD type aluminum electrolytic capacitors, offer high quality, short delivery and competitive prices, good package. 
(Cross guide--Nippon: MVA, MVE;  Nichicon:UWX, UWT; Rubycon: SEV, SKV; Panasonic: EEE-x(A)S, EEEHA; Sanyo: CE-BS, CE-FS Samwha :SC, RC; Yageo: CA, CB;)

jb Capacitors Company is a specialist on Large-can type Snap-in, Screw terminal, and Photo flash aluminum electrolytic capacitors, based on HK & Taiwan technology.

For our Photo flash capacitor, we selling quite good in EU market, with enjoy very good reputation, very high and stable quality.
It is widely used for hair remover application, our prices are also very competitive, please send to us your inquiries to info@jbcapacitors.com .

Some characteristic of our JSU photo flash capacitor
High stability, high quality
Very compact size and light weight
Wide voltage range: 330V, 360V, 400V etc

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.

Dear Customers,  

let me share with you, In 2012, our production volume increased a lot, like JFV X2 series sales increased by 102%.  JFB MKT Film capacitors(CL21) sales increased by 87%.

Due to our high quality and good prices, we win many good projects, like Philip lighting and Bosch white goods projects. 

We also look forward to starting business with your company. Kindly send your MKT ,MKP film capacitors demands to me quote, OK ?

jb top sellers:

1) JFB--Dipped Type Metallized Polyester Film Capacitor (CL-21, K73-17)
Cross guide: Vishay MKT468, Epcos B32591~32594, Panasonic ECQE, ECQV, Pilkor PCMT 369　

2) JFV--X2 Metallized Polypropylene Film Capacitor (ENEC, VDE, UL approvals)
Cross guide: Kemet R46, Vishay MKP3362, Epcos B81130, Panasonic ECQU, Pilkor PCX2 337, Evox Rifa PHE840M

Our JFS Motor Start/Run Capacitors sell very good on EU and CIS markets due to our high quality, low prices and very good package.

Many customers buy one list from us with different values from 1uF to 100uF / 250VAC, 450VAC. 
We produce total 18 types, and below 4 types: JFS-A, JFS-6, JFS17, JFS-13 are the most popular types. 

JFS - Motor Starting Capacitor Features:
Electrical apparatue use metalized film with precisely quality control.
Low D.F. (dissipation factor), lower temperature rise.
High I.R. (insulation resistance) small size.
High safety & high reliability.
Durability and characteristics of frequency, etc.

A dual run capacitor supports 2 electric motors, such as in large air conditioner or heat pump units, with both a fan motor and a compressor motor. The dual capacitor has 3 terminals labeled "C", "FAN", and "HERM" for the common, fan, and hermetic compressor connections.

Round dual run capacitors (shaped as round cylinders) are commonly used for air conditioning, to help in the starting of the compressor and the condenser fan motor. Dual capacitors come in a variety of sizes, depending on the capacitance (µF), such as 40 plus 5 µF, and also the voltage. A 440 volt capacitor can be used in place of a 370 volt, but not a 370 in place of a 440 volt. The capacitance must stay the same within 5% of its original value. An oval dual run capacitor could be used instead of a round capacitor, but the mounting strap should be changed to better fit the oval shape.

http://www.jbcapacitors.com/Plastic-Film-Capacitors/JFS-Motor-Capacitor.html

IEC/EN 60252-1 2001 specifies levels of protection for motor run capacitors
• P0 - no protection
• P1 - fail open circuit or short circuit
• P2 - fail open circuit only 

Start capacitors above 20 microfarads (µF) are always non-polarized Aluminum Electrolyic Capacitors with non solid electrolyte and therefore they are only applicable for the short motor starting time.

Start capacitors briefly increase motor starting torque and allow a motor to be cycled on and off rapidly. Start capacitors have ratings above 70 microfarads (µF), with four major voltage classifications: 125 V, 165V, 250 V, and 330 V. A start capacitor stays in the circuit long enough to rapidly bring the motor to 3/4 of full speed and is then taken out of the circuit, such as by a centrifugal switch that releases at that speed. The motor after that runs more efficiently with a run capacitor.

http://www.jbcapacitors.com/Plastic-Film-Capacitors/JFS-Motor-Capacitor.html