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 JFS--Motor Starting Metallized polypropylene film capacitors

Some Fan manufacturers use motor starting Metallized polypropylene film capacitors.

JFS-Motor starting Metallized polypropylene film capacitors have 18 kinds of types.

CBB60 &CBB61 are two of their types.

welcome to visit datasheet: http://www.jbcapacitors.com/pdf/JFS-Motor-Starting-Capacitor.pdf

jb X2 MKP film capacitors (0.22uF) small size (18X6X12)+/-1mm.

Our X2 MKP film capacitors (0.22uF) is also used in power tool control board application, the reference max size can be (18X6X12)+/-1mm.
JFV--X2 Metallized Polypropylene Film Capacitor
0.22uF 275VAC +/-10% P:15mm Size: (18X6X12mm)+/-1mm Bulk RoHS
pls.contact us for specifications.

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

Series

Values

E3

1

 

 

 

2.2

 

 

 

4.7

 

 

 

E6

1

 

1.5

 

2.2

 

3.3

 

4.7

 

6.8

 

E12

1

1.2

1.5

1.8

2.2

2.7

3.3

3.9

4.7

5.6

6.8

8.2

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.

 

 

About jb Capacitors

Specialized in manufacturing full series of Plastic Film Capacitors & Snap-in, Screw & Lug type Aluminum Electrolytic Capacitors. These products have been widely using in consumer's electronics, data processing, telecommunication, and industrial control's equipments. It is our commitment to offer our customers the best quality products with fast delivery and the best after sales services.

jb Capacitors has been producing film capacitors since 1980. We offer all kinds of film capacitors, polyester, polypropylene, polystyrene, epoxy dipped type, box type,X2, X1 class, high voltage film capacitors up to 2000VDC, besides winding

technology and stacked technology are both available. Our film capacitors are famous for high quality, short lead time and very competitive prices

jb Capacitors produces many kinds of motor starting capacitors, with high safety, high reliability, low dissipation factor and low temperature rise.

jb Capacitors has 30 years production experience on large can (snap in, screw, and lug  type) aluminum electrolytic capacitors. We sell top quality with reasonable prices.

Our SMD aluminum electrolytic capacitors 105'C and 85'C lead time is very short and  rices are the best in the market. Monthly output for SMD electrolytic capacitors can meet 30 millions.

jb Capacitors History

Jun, 1980, founded in Tainan, Taiwan to produce Plastic Film Capacitors.

Feb, 1982, started to produce Snap-in, Screw & Lug type Aluminum Electrolytic Capacitors.

Dec, 1984, established sales office and warehouse in Hong Kong Located in N.T., HK

July, 1987, moved to China and built up joint venture in Hefei, Anhui Province, China.

Dec, 1988, started production of Snap-in, Screw & Lug Aluminum Electrolytic Capacitors in China.

Aug, 1993, jb Capacitors became sole proprietorship enterprise in China.

Jun, 2003, jb Capacitors set up sales office in Dongguan, Guangdong Province, China.

March, 2005, started to produce SMD Aluminum Capacitors.

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 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 metallized polypropylene film capacitors
  • JFR--Radial & Axial Polystyrene film capacitors
  • JFP--High voltage metallized polypropylene cap.
  • JFQ--Double sided metallized polypropylene cap.
  • JFS--Motor starting film capacitors
  • JFX--Premium metallized polypropylene Cap.
  • JCS--85°C SMD electrolytic capacitor
  • JCK--105°C SMD electrolytic capacitor

jb tell you Why do you choose jb Capacitors

1.High quality commitment
2.Competitive prices, professional factory
3.Fast lead time
4.Strong sales & technical support, quick response

jb Capacitors History

Jun, 1980, founded in Tainan, Taiwan to produce Plastic Film Capacitors.
Feb, 1982, started to produce Snap-in, Screw & Lug type Aluminum Electrolytic Capacitors.
Dec, 1984, established sales office and warehouse in Hong Kong Located in N.T., HK
July, 1987, moved to China and built up joint venture in Hefei, Anhui Province, China.
Dec, 1988, started production of Snap-in, Screw & Lug Aluminum Electrolytic Capacitors in China.
Dec, 1988, started production of Snap-in, Screw & Lug Aluminum Electrolytic Capacitors in China.
Aug, 1993, jb Capacitors became sole proprietorship enterprise in China.
Jun, 2003, jb Capacitors set up sales office in Dongguan, Guangdong Province, China.
March, 2005, started to produce SMD Aluminum Capacitors.