jbcapacitors blog

The JFX range of capacitors has long been established as a quality audio grade device.

Available in a voltage rating of 250Vdc, it offers audio engineers excellent sonic performance at a competitive price level. Copper clad steel terminals are standard; however, others are available upon request.

Drawing:

Common Items Standard Size (mm):

If you want to know more details, please click below link.
http://www.jbcapacitors.com/pdf/JFX-Premium-Metallized-Polypropylene-Film-Capacitors-Axial.pd

jb Capacitors Company is a ISO 9001:2008 manufacturer since 1980. We achieved VDE, ENEC, UL, CE,  RoHS certifications and we believe that we are just your best choice. Visit us at : www.jbcapacitors.com

A motor capacitor, such as a start capacitor or run capacitor, including a dual run capacitor, is an electrical capacitor that alters the current to one or more windings of a single phase AC induction motor to create a rotating magnetic field. It is used in air conditioners, hot tub/jacuzzi spa pumps, or forced air heat furnaces for example.
A round dual run capacitor is used in some air conditioner compressor units, to boost both the fan and compressor motors.

Run capacitors are mostly polypropylene film capacitors and are designed for continuous duty, and they are energized the entire time the motor is running.
Run capacitors are rated in a range of 1.5–100 microfarads (µF or mfd), Single phase electric motors need a capacitor to energize a second-phase winding.
If the wrong run capacitor is installed, the motor will not have an even magnetic field, and this will cause the rotor to hesitate at those spots that are uneven.
This hesitation can cause the motor to become noisy, increase energy consumption, cause performance to drop, and cause the motor to overheat.

jb JFS Motor Start/Run Capacitors, have total 22 types, with CE approvals, lower MOQ support. 
Safety class: P0, Climate category: 40/85/21, Frequency: 50/60Hz. We jb Capacitors are your best choice for Film Capacitors, Motor Start Capacitors, X2 Film Capacitors etc.

jb Capacitors Company is a ISO 9001:2008 manufacturer since 1980. We achieved VDE, ENEC, UL, CE,  RoHS certifications and we believe that we are just your best choice. Visit us at : www.jbcapacitors.com

jb capacitors company is ISO manufacturer for film capacitors since 1980. We guaranteed high quality, good and stable prices, short delivery.

Our company offer below mini size polyester film capacitors, Ammo package are available. 

JFA--Mylar Polyester Film Capacitors ( CL11 type, Pitch Size 5mm for Ammo Pack )

JFE--Mini Size Metallized Polyester Film Capacitors ( Dipped type, Pitch Size 5mm & 7.5mm )

JFJ--Mini Box Stacked Metallized Polyester Film Capacitors  (Box Type, Pitch Size 5mm, Stacked )

jb Capacitors Company is a ISO 9001:2008 manufacturer since 1980. We achieved VDE, ENEC, UL, CE,  RoHS certifications and we believe that we are just your best choice. Visit us at : www.jbcapacitors.com

Your jfx line is a very good speaker crossover cap and at its attractive pricing should be replacing most caps in all the hi-end speakers.  All competing caps which aren't as good as the jfx.
----Paul Weitzel

jb Capacitors JFX series high end audio capacitors are more and more popular in US & European Market! Widely used in high end audio equipments, cross overs, amplifiers, loudspeakers etc...

Our advantages:  Competitive Prices , Short delivery, high quality, lower MOQ, good customer service, free samples etc..

Welcome to contact us for details.  Email: info@jbcapacitors.com

jb Capacitors Company is a ISO 9001:2008 manufacturer since 1980. We achieved VDE, ENEC, UL, CE,  RoHS certifications and we believe that we are just your best choice. Visit us at : www.jbcapacitors.com

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

Samples tested by Mr. SAM BENELBAZ
jb JFX—premium metallized polypropylene film capacitors
JFX 94uF 250VDC +/-5% Bulk RoHS, Qyt: 2pcs
JFX 22uF 250VDC +/-5% Bulk RoHS, Qty: 2pcs
JFX 3.5uF 250VDC +/-5% Bulk RoHS, Qty: 4pcs

Datasheet link: 
http://www.jbcapacitors.com/pdf/JFX-Premium-Metallized-Polypropylene-Film-Capacitors-Axial.pdf

Introduction of Mr. SAM BENELBAZ

French, retired, have the hobby of TUBE do it yourself; used to work in IBM as a professional 
of electronics; after that for LASER a company involved in point of sales solutions and hardware maintenance, in that position, he bought a French company sic-safco. 

Mr. SAM BENELBAZ is member of some forums in US and France, some are AUDIOASYLUM.com and DIYAUDIO.com fun withtubes. com and some others.

Original letter from Mr. SAM BENELBAZ

Dear iris,
i hope you are ok. 
I have installed the JFX capacitors last Sunday and i can now give you my impressions.

But first i have to tell you what speakers and amps i used for the test:

The speakers are YAMAHA NS1000M well known in the market and very revealing .
The amps are two american CARY tube amps model 40M using 6SL7 and EL34 tubes.
In this test the EL34 are NOS Philips EL34 of the XF2 series (the best).

The Yamaha crossover was using mainly NICHICON capacitors using metalised paper .
I did replace every capacitor with the ones you send me.
The CDs i use for the test are very good Cds , classic music and jazz mainly.
I know them very well and can hear the differences well. 

We jb Capacitors can offer both insulated lead, and jb standard CP wire lead for RC unit X2 film capacitors.

jb Capacitors is ISO 9001:2008 certificated professional manufacturer for full range of Film Capacitors and standard SMD electrolytic capacitors.

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.

Below jb capacitors most strong series, which are the most popular series in Russian market.

JFP- Металлополипропиленовые конденсаторы высокого --CBB-81 (аналоги к78-2)
JFG- Аксиальные (осевые) пленочные конденсаторы (свинцовые) -- CL20  (аналог К73-11)
JFA - Майларовые полиэстровые пленочные конденсаторы --CL11 (аналоги к73-9)
JFB - Металлополиэстровые пленочные конденсаторы --  (аналоги к73-17)
JFV - X2 Металлополипропиленовые пленочные конденсаторы-- (конденсаторы X2)