jb CE,UL, TUV approvals--JFV series X2 MKP Film Capacitors

CE word is from the French "Communate Europpene" from the initials, is the meaning of the European Community。"CE" mark is a safety certification mark, the manufacturer is considered open and the passport to enter the European market.

UL is in English Test by insurance Underwriter Laboratories Inc. UL secuity testing is the most authoritative, but also engages im community safety testing and identification of the larger non-governmental organizations.

JFV-X2 Metallized Polypropylene Film Capacitor, is not only with above two approvals(CE& UL), but also with TUV approvals. That must can help to promote this capacitor in your market.

Do you use the X2 safety capacitors ? For more info, welcome to visit "jbcapacitors" production lines:  http://www.jbcapacitors.com/Plastic-Film-Capacitors/

jb X2 Film Capacitors Stock Offer--JFV series

In order to meet some customers' urgent request, jb capacitors company plan to sell stock X2 film capacitors from July.

Now we have below stock X2 Metallized Polypropylene Film Capacitors, welcome to ask for quote

JFV-X2 Metallized polypropylene film capacitor, cross to Epcos B81130, Vishay MKP3382, Kemet R46,etc.

0.1uF 275VAC +/-10% P:15mm Bulk RoHS Part#: JFV0A1104K150000B, .

0.22uF 275VAC +/-10% P:15mm Bulk RoHS Part#: JFV0A1224K150000B

X2 film capacitors widely used in powersupply, amplifier, electronic ballast, white goods, automotive etc..

jb capacitors JFV series X2 film capacitor is one of the most strong series, best seller, with jb UL,TUV,CE approvals.

Stock samples & goods are available! First come first served!

jb Mylar polyester film capacitors used for Home Refrigerato

Kindly note Mylar Polyester Film capacitor can be used in Home Refrigerator with 1200V high voltage and value (1000pF /2200pF /2700pF /3300pF ).

JFA--Mylar polyester film capacitors, green capacitors.

1000pF 1200V

2200pF 1200V

2700pF 1200V

3300pF 1200V

Datasheet: http://www.jbcapacitors.com/pdf/JFA-Mylar-Polyester-Film-Capacitor.pdf

What is your application ? What kind of capacitors do you use ?

jb Development Tendency of Film Capacitors

Film capacitors mainly used in electronics, home appliance, communication, electrified railway, HEV(Hybrid Electric Vehicle), wind power generation, solar electrical energy generation etc..

As the demand of film capacitors for frequency home appliance is bigger than that of common home appliance, its advantages of energy conservation and environmental protection are more and more popular, future market is much bigger. After Japanese earthquake, frequency home appliance market much bigger than CFL, and the development potential even bigger.

With the development of technology, electronics, home appliances, communications and other industries replacement cycles are getting shorter, and film capacitors with its good electrical performance and high reliability, become the indispensable electronics components for promoting and upgrading of the above industries.With the next few years, digital, information technology, network construction and further development of countries in the power grid construction, electrification of railway construction, energy efficient lighting, hybrid cars, etc. to increase investment and consumer electronics products, upgrades, market demand for film capacitors will further show rapid growth trend

jb Mylar polyester film capacitors features and applications

Mylar Polyester film has a lot of mechanical, di-electrical, excellent optical and physical strength and so it is been widely used in many fields. It is mainly used for the purpose of insulation and is used in electrical equipment, appliance, and membrane switch.

The features of Mylar Polyester film capacitor are as follows. It is train-and tear-resistant, dimensionally stable and has excellent electrical properties. This material has good heat-and cold-resistant properties and is resistant to common solvents. The main application of Mylar Polyester film capcitor is that it is used as intermediate and top layer insulation in transformers, chokes and relay coils. Furthermore, it is used as slot and phase insulation, as a cover slide, in electric machinery, generators, as insulating layer for magnets and in electrical equipment been used..

jb capacitors company has such product, JFA—Mylar Polyester Film Capacitor, welcome to visit website www.jbcapacitors.com for further details.

jb E3 & E6 Series Values

1.)Capacitors Breakdown voltage

Main article: Breakdown voltage

The breakdown voltage of the dielectric limits the power density of capacitors. For a particular dielectric, the breakdown voltage is proportional to the thickness of the dielectric.

If a manufacturer makes a new capacitor with the same dielectric as some old capacitor, but with half the thickness of the dielectric, the new capacitor has half the breakdown voltage of the old capacitor.

Because the plates are closer together, the manufacturer can put twice the parallel-plate area inside the new capacitor and still fit it in the same volume (capacitor size) as the old capacitor. Since the capacitance of a parallel-plate capacitor is given by: 

this new capacitor has 4 times the capacitance as the old capacitor.

Since the energy stored in a capacitor is given by: 

This new capacitor has the same maximum energy density as the old capacitor.

The energy density depends only on the dielectric. Making a few thick layers of dielectric (which can support a high voltage, but results in a low capacitance), or making many very thin layers of dielectric (which results in a low breakdown voltage, but a higher capacitance) has no effect on the energy density.

2.) Standard values

Before 1960 electronic components values were not standardised. The more common, but not the only, values for capacitors were 1.0, 1.5, 2.0, 3.0, 5.0, 6.0, and 8.0 as base numbers multiplied by some negative or positive power of ten. Values of 0.001 µF and above were stated in microfarads (µF, or often mF); lower values were stated in micro-microfarads (µµF, now called picofarads, pF).

In the late 1960s a standardized set of geometrically increasing preferred values was introduced. According to the number of values per decade, these were called the E3, E6, E12, etc. series










































In many applications capacitors need not be specified to tight tolerance (they often need only to exceed a certain value); this is particularly true for electrolytic capacitors, which are often used for filtering and bypassing. Consequently capacitors, particularly electrolytics, often have a tolerance range of ±20% and need to be available only within E6 (or E3) series values.



jb JFJ--Mini Box type stacked Metallized Polyester Film capacitors, Pitch size 5mm, Unbeatable Short Lead time!

From 2010, mini box type stacked metallized polyester film capacitors lead time became longer & Longer,  at the end of 2010, some suppliers lead time was more than 80 weeks or even allocation. Customers are desperate for these parts, seems the price is not so important then.

In order to meet many customers' needs, jb capacitors have done many efforts to improve the lead time of our JFJ series mini box 5mm MKT capacitor. Currently we offer 5-6 weeks lead time.

Short lead time can help customers win more opportunities & projects! Welcome to send your urgent inquiry & order to us. :)
JFJ-Mini box stacked metallized polyester film capacitor
Datasheet: http://www.jbcapacitors.com/pdf/JFJ-Mini-Box-Stacked-Metallized-Polyester-Film-Capacitor.pdf
Pitch size: 5mm mini size,Cross Arcotronics(Kemet) R82 series, Vishay MKT370 series, Epcos: B32529 series, etc..

jb X2 Metallized Polypropylene Film Capacitor -JFN

Description :

1. High frequency operation.
2. High du / dt.
3. High insulation resistance.
4. Flame retardant epoxy resin (UL 94V-0).

Specification :

1. Operating temperature: -40℃~+100℃.
2. Capacitance range: 0.0022μF~1μF.
3. Capacitance tolerance: ±10% (K).
4. Rated voltage: 300V, 280V, 275V. 250V.AC
5. Dissipation factor: 0.08% max at 1KHz 20℃ 0.3% max at 10KHz 20℃.
6. Insulation resistance: 1.R≥30,000MΩ (C≤0.33μF) 1.R≥10,000MΩ (C>0.33μF)

jb Metallized Polypropylene Capacitors for Switching Power Supplies

These Metallized Polypropylene Capacitors are specifically designed for high current, high frequency applications like switching power supplies. Film capacitors offer a much higher degree of reliability and stability than other types of capacitors. Polypropylene capacitors are non-polar, they come in the all case styles, including Wrap & Fill, Epoxy Case, and Metal Hermetically Sealed.

Metallized Polypropylene capacitors have high current end terminations to handle high pulse currents as well as high RMS currents. Detailed specifications as well case sizes for our standard Axial Wrap & Fill are linked www.jbcapacitors.com For custom designs please contact our sales with your specific requirements as we specialize in custom made capacitors.

jb Polypropylene Film Capacitors Environmental Characteristics

Vibration Test:

Test condition E for 720P, test condition B all others; no mechanical damage, short, open or intermittent circuit.

Moisture Resistance:

The hermetically sealed units shall be tested as outlined in the Moisture Resistance testing of section J. As a result of the test there shall be:

  • No visible damage
  • Max. ∆ C of ± 0.25%
  • Min. IR = 33% of initial limit
  • Max. DF = 0.12%