jb Capacitors Company Double Sided Box Type Met Polypropylene Film Capacitor (MKP), JFQD series

jb has wide product range can cross to different capacitors brand, our JFQD is  Double Sided Box Type Met Polypropylene Film Capacitor. It can be crossed to Vishay MKP383, Wima MKP 10. Kemet R76 series. Its capacitance value is from 0.001 to 0.068uF with high precision of capacitance. And, the rated voltage range is from 630VDC to 2000VDC. Moreover, the tolerance can reach +/-5% and +/-10%. Its application includes high voltage, high frequency and pulse circuit.

Double sided metallized polypropylene structure
Low loss and small inherent temperature rise
Excellent active and passive flame resistant abilities.
Negative temperature coefficient of capacitance

jb Capacitors Company Double Sided Box Type Met Polypropylene Film Capacitor (MKP), JFQD series

jb Capacitors Company Mini Size Film Capacitors--JFF, JFLM, JFMM

jb Capacitors Company has the strong product line of Film capacitors. We have some series that is Mini Size, that can allow to use on the board which has limit space. There are three series including JFF, JFLM, JFMM.

JFF and JFMM are mini box type, JFLM is dipped type. JFF is Box Metallized Polyester Film Capacitor. JFMM and JFLM are Metallized Polypropylene Film Capacitor. There are many different choice for your demands. Check below table for their features.

Contact us for more information.





Operating Temperature


-40°C~ +85°C

-40°C~ +85°C

Capacitance Range


0.001 ~ 0.33μF (±5%)

0.001 ~ 1 μF

Capacitance Tolerance

±5% (J) ,±10% (K)



Voltage Range





Miniature size, Non-inductive metal structure

Dissipation factor is low, mini size, pitch:5mm

Low losses, high dv / dt capability, pitch:5mm, 7.5mm

jb Capacitors Company Mini Size Film Capacitors--JFF, JFLM, JFMM

jb Introduces JFW X2 MKP Series to You

jb X2 MKP is always strong and very popular series on market.

I trust you know our JFV series get lots of good reputation, with advances in technology, we have developed another series JFW which can achieve 310 VAC and with ENEC, VDE and UL approvals.

JFW series has circulated on market for a while, we received many good feedback from customers. Especially JFW offer is much better!

In the near future, JFW will completely replace JFV series be the best one of X2 MKP capacitor.

If you haven't tried our JFW series, Please send your inquiry to us asap, you wouldn't want to miss it!

jb Box Type MKP Film Capacitors For Capacitive Divider Typical Circuit

After years of study, jb finally successfully developed a new series of capacitors for capacitive divider.

This kind of capacitor is specifically designed for applications in serial with the 100~240Vac MAIN.
Such as 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. Also widely used in LC resonant, high frequency high current situation.

Below is the Typical Circuit for jb Box Type MKP Film Capacitors For Capacitive Divider JFMA

jb Lower Prices for JFB, JFL, JFP Film Capacitors

We hope to share with you that now our prices for CBB21, CL21, CBB81 lower than before.
welcome your inquiry to get the new prices from us. and we have very special prices support based on good order list, you will be benefit much if you purchase in June.

CL21------JFB  1000pF~10uF, 100V~630V
CBB21---JFL   1000pF~10uF, 100V~630V
CBB81---JFP   220pF~0.047uF,  1000V~2000V

jb JFM- Box Metallized Polyporpylene Film Capacitors

MKP film capacitors, Metallized polypropylene film capacitors, single side metallized polypropylene film capacitors, Box type MKP capacitors 

jb Capacitors Company found in 1980, with ISO 9001:2008 certificated, produce full series film capacitors with unbeatable prices and high quality, 
JFM- Box type Metallized Polypropylene Film Capacitors
JFM - Box Metallized Polypropylene Film Capacitors Simple Cross Guide : 
jb Capacitors Company JFM series www.jbcapacitors.com
Epcos B32651~32654 www.epcos.com
Arcotronics(KEMET) R75   www.kemet.com
Evox Rifa(Kemet) PHE426 www.kemet.com
Vishay MKP379/ MKP385 www.vishay.com
Wima MKP 4 www.wima.de
Pilkor PCMP389 www.pilkor.com.kr
Faratronic MKP21(C32) www.faratronic.com
ICEL PPB www.icel.it
ISKARA KNI1910,KNU1910 www.iskrasistemi.si
Electel Germany KP25 www.electel.de
KONEK MKP77 www.konek.com
CDE Cornell Dubilier Type 171 www.cde.com
MFD Capacitors MKP 65 www.mfdcapacitors.co.uk
Tecate Group type 2124 www.tecategroup.com

JFM Box Type Metallized Polypropylene Film Capacitors Application: 

TV S-correction, TV flyback, deflectors circuits in TV-sets, Electronic ballast,  LED driver, Monitors, electrical ballast, compact lamp, TV power factor correction

SMPS(switch mode power supplies), timing, oscillator circuits, Pulse operation, high packaging density circuits,  Motor control circuits.

IGBT snubber, High frequency DC, AC and pluse circuits, SCR commutating circuits, 

General resonance circuit, Horizontal resonance circuit, High frequency circuit, Active filtering, Radio circuits, S-curve compensating circuit

HDTV sets, Lanterns, Surveillance Equipments, Power Supply, Video tape recorder, Power factor correction (PFC) 


jb Why You Use Capacitor in Transistor Amplifier Circuit?

Keywords: Ripple Voltage, AC power supplies, audio amplifier, open-loop

Capacitors are used to couple each stage of an amplifier to the next, to help remove ripple voltages from rectified AC power supplies and they are also used to tune circuits to get the required frequency response, such as a tone control in an audio amplifier, or an RF or IF amplifier in a radio receiver front-end.

Capacitors are also used to bypass emitter resistors to improve the voltage swing and lower the AC output impedance of class A amplifier stages, and also used in negative feedback loops to stabilize an amplifier's open-loop gain.

We jb capacitors company professional produce MKT & MKP film capacitors, total 22 series. we have two representitive types used in Amplifier, audio, sound system. please check below.

JFG-- Axial Met Polyester & Polyrpopylene Film Capacitor, nice appearance, very popular in market now.

Flat and Round shape are available

Datasheet: http://www.jbcapacitors.com/pdf/JFG-Axial-Metallized-Polyester-Polypropylene-Film-Capacitor.pdf

JFX-- Axial Premium Met Polypropylene Film Capacitors, this is a high end audio capacitor, quality is quite good.

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

Welcome to send us your inquiry to info@jbcapacitors.com Skype: jbcapacitors