jbcapacitors blog

As capacitor voltage divider in applications requiring a high capacitance stability over time, we highly suggest you to use jb new designed capacitors, specifically designed for applications in serial with the 100~240Vac main.

Features: 
For use in series with the 100~240Vac main
According to RoHS 2011/65/EU
High Capacitance stability for harsh environment.
Relevant for capacitive divider power supply, power meter, emergency lighting, thermostat, interference suppression.

Typical Capacitance and Values For Capacitive Divider:
334, 0.33uF 400VDC （230VAC） +/-10%, Pitch:15.0mm, LxTxH: (18x9x16mm) Max, Bulk Packing, RoHS
474, 0.47uF 400VDC （230VAC） +/-10%, Pitch:20.0mm, LxTxH: (23x8x15mm) Max, Bulk Packing, RoHS
394, 0.39uF 630VDC （310VAC） +/-10%, Pitch:22.5mm, LxTxH: (25x8.5x15mm) Max, Bulk Packing, RoHS

jb Capacitors R&D department accumulate years of experience in film capacitors, in year 2018 we develop a kind of capacitors especially use in serial circuit.
This kind of capacitors is for Capacitive Divider application.Below are our 3 different series of them. The X2 type with best performance 

JFLA - Dipped Metallized Polypropylene Film Capacitor For Capacitive Divider 
JFMA - Box Type Metallized Polypropylene Film Capacitor For Capacitive Divider 
JFZA - 310VAC X2 Metallized Polypropylene Film Capacitor For Capacitive Divider

JFZA 310VAC X2 Metallized Polypropylene Film Capacitor For Capacitive Divider Typical Circuit

jb Metallized Polypropylene Film Capacitor For Capacitive Divider Applications

Suitable for applications in serial with the 100~240Vac mains, as energy meter, a small power LED driver module,small household electrical appliances control panel (electric kettle, electric cooker, coffee machine, hair straightener etc.), thermostat, replace the transformer. Widely used in LC resonant, high frequency high current situation.

Are you ready for the Christmas holiday?
jb have new series for you to celebrate with the joyful holiday.
Our new series of plastic film capacitors—JFLA
We offer it with competitive price and fast lead time. Moreover, you can order them with a more flexible quantity.
Please feel free to send us your RFQ. We can offer you the best price. 

Features:
1. Metallized polypropylene film, non-inductive wound construction
2.Good self-healing properties, withstanding surge voltage stressing.
3.Long stability of capacitance.
4.Good properties in damp environment.
5.Flame resistant epoxy resin powder coating (UL94/V-0). 

Operating Temperature	-40°C~ +105°C
Rated Voltage	400V(230VAC)、630V(275VAC/305VAC/310VAC)
Capacitance Range	0.01 ~ 10.0μF
Capacitance Tolerance	±5%, ±10%, ±20%
Insulation Resistance	UR>100V C≤0.33uF IR ≥25000MΩ,C>0.33uF IR ≥7500s UR<100V C≤0.33uF IR ≥12500MΩ,C>0.33uF IR ≥3750s
Dissipation Factor	≤0.002 (at 1KHz) (typical 0.001 max)

Today we see a tube amplifier from our customer, its configuration is really amazing.
There are some of products, which he use in this products. what about you? welcome to send to us your inquiry for the capacitors.
We can provide you excellent service, professional support.

JFGD axial flat MKP film capacitor: 1.5uF 630V
105’C Radial electrolytic capacitors 470UF 63V
105’C Snap-in electrolytic capacitors, 400V
JFL polypropylene film capacitors 0.22UF 630V 

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

Do you hear about RC unit Capacitor? A kind of components which installed by a capacitor and a resistor as a unit.

So why do need to make such type of component? It’s quite common for us to see the resistor and capacitor is used in one circuit,
RC circuits are really cool because instead of a steady flow of current, an RC circuit is one in which the current varies over time.
If you ride your bike to work or school you know that you'll be safer when you wear a helmet with a flashing light on it. 
But what you may not know is that the light flashes because of an RC circuit! 
The duration of the flash is determined by the resistance and the capacitance in that circuit. 
For example, a small capacitance would produce a quicker flash, whereas a larger capacitance would produce a slower flash.

From jb Capacitors Company

Today, I would like to show you more detailed information about jb JFW MKP X2 Class Capacitors. jb provides four sizes of JFW Safety Film Capacitors samples: Pitch 10mm, Pitch 15mm, Pitch 22.5mm and Pitch 27.5mm. 
Here are the items of jb JFW Radial Class X2 310VAC Capacitors in each four pitches: 

jb provides free samples to you no matter where you are. No one can deny that this is a good chance to test jb upgrade product JFW Safety Film Capacitors. Hurry to contact with us for free samples!
http://www.jbcapacitors.com/Plastic-Film-Capacitors/JFW-X2-Metallized-Polypropylene-Film-Capacitor.html

Dear Customers, here is the form of jb upgrade product JFW Suppression Film Capacitors Class X2 AC’ s capacitance range, you can according to the data to choose the size you need. JFW Safety Film Capacitors is less affected by the voltage compare with other capacitors, you will definitely praise it.