jbcapacitors blog

We opened “distributor page” on our website. Please find it here: http://www.jbcapacitors.com/Distributor.html

We welcome more and more distributors join with us, and win more market shares together.

"jb” is definitely a worthwhile brand for you keep promoting on your markets.
We are ISO 9001:2015 certificated manufacturer, Our products have been certificated with ENEC, VDE, UL, CE, SGS etc.
Remember us: jb Capacitors, professional produce Film Capacitors, Aluminum Electrolytic Capacitors since 1980.

Our audio film capacitors are middle-high level, which loved by high-end audio makers.
They can bring out unbeatable sound performance, also awesome audio experience.

Many manufacturers of loudspeaker and amplifier bought audio film capacitors from us.
We have pretty high reputation of in Europe, there are many distributors of ours.

You will have more confidence after seeing our test reviews from our customers all over the world!
Welcome to send us your request and have samples tested!

JFX PDF datasheet: 
http://www.jbcapacitors.com/pdf/JFX-Premium-Metallized-Polypropylene-Film-Capacitors-Axial.pdf
JSX PDF datasheet: 
http://www.jbcapacitors.com/pdf/JSX-Superior-Metallized-Polypropylene-Film-Capacitors-Axial.pdf

JFX Test Reviews: 
http://www.jbcapacitors.com/pdf/JFX-Premium-Metallized-Polypropylene-Film-Capacitors-Axial-Test-Reviews.pdf
JSX Test Reviews:
http://www.jbcapacitors.com/pdf/JSX-Superior-Metallized-Polypropylene-Film-Capacitors-Axial-Test-Reviews.pdf

In order to shorten the delivery time for film capacitors, we begin to change the oil marking to laser making for JFV X2 Metallized Polypropylene Film Capacitors.
The marking change does not affect the products performance. At the same time, the laser marking can avoid the numbers been erased after long time using.

Over all, not only from the production aspect, but also from the technology aspect, laser marking is more advanced.
We wish our customer will benefit from this change.

http://www.jbcapacitors.com/Plastic-Film-Capacitors/JFV-X2-Metallized-Polypropylene-Film-Capacitor.html

You can use your multimeter as an ohmmeter to test the capacitor.

1) Discharge the capacitor by shortening its leads. that is - use a wire and connect the leads of the capacitor together. this will discharge it.
2) Put your multimeter in the high ranges 10k-1m
3) Connect multimeter to capacitor leads(observe the polarity if electrolytic). at soon as the leads make contact, the meter will swing near zero. it will then move slowly toward infinity. finally the meter would come to be infinite ohms because the capacitor is being charged by the battery of the multimeter.
4) If the capacitor is bad, it will go to zero ohms and remain there. this is called a shortened capacitor
5) In the case of an open capacitor there will be no ohmmeter indication.
6) Some capacitors have a low dielectric leakage. you will know this if the ohmmeter comes to rest at a point lower than infinite. test a known good capacitor of the same type to be sure.

This test works for large capacitors. Tiny capacitors can only be checked with a capacitance meter, or by using them in an AC circuit and checking for variation from calculated voltage drop.
Pls. focus on jb most strong series:  JFB--MKT (Metallized Polyester ) Film Capacitors &JFV--X2 MKP (Metallized Polypropylene) Film Capacitors.

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--Double sided 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