2011-2-26 16:47:31
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JFJ series is mini box stacked metallized polyester film capacitors, with P:5mm.

JFE series is mini metallized polyester film capacitors with dipped, with P:5mm and 7.5mm.

Current markets are greatly lack of JFJ series mini box stacked mkt film capacitors. Our JFE series--mini mkt film capacitors can instead of JFJ series.

welcome to study our JFE--Mini metallized polyester film capacitors datasheet, and send your inquiry.

JFE--Mini metallized polyester film capacitors with P:5mm and P:7.5mm.

datasheet: http://www.jbcapacitors.com/pdf/JFE-Mini-Metallized-Polyester-Film-Capacitor.pdf

Lead time:7-9 weeks

2011-2-26 16:40:12
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To use this table, just read across. For example, 1uF is same 1,000nF or 1,000,000pF.

uF/ MFD | nF | pF/ MMFD | | uF/ MFD | nF | pF/ MMFD |

1uF / MFD | 1000nF | 1000000pF(MMFD) | | 0.001uF / MFD | 1nF | 1000pF(MMFD) |

0.82uF / MFD | 820nF | 820000pF (MMFD) | | 0.00082uF / MFD | 0.82nF | 820pF (MMFD) |

0.8uF / MFD | 800nF | 800000pF (MMFD) | | 0.0008uF / MFD | 0.8nF | 800pF (MMFD) |

0.7uF / MFD | 700nF | 700000pF (MMFD) | | 0.0007uF / MFD | 0.7nF | 700pF (MMFD) |

0.68uF / MFD | 680nF | 680000pF (MMFD) | | 0.00068uF / MFD | 0.68nF | 680pF (MMFD) |

0.6uF / MFD | 600nF | 600000pF (MMFD) | | 0.0006uF / MFD | 0.6nF | 600pF (MMFD) |

0.56uF / MFD | 560nF | 560000pF (MMFD) | | 0.00056uF / MFD | 0.56nF | 560pF (MMFD) |

0.5uF / MFD | 500nF | 500000pF (MMFD) | | 0.0005uF / MFD | 0.5nF | 500pF (MMFD) |

0.47uF / MFD | 470nF | 470000pF (MMFD) | | 0.00047uF / MFD | 0.47nF | 470pF (MMFD) |

0.4uF / MFD | 400nF | 400000pF (MMFD) | | 0.0004uF / MFD | 0.4nF | 400pF (MMFD) |

0.39uF / MFD | 390nF | 390000pF (MMFD) | | 0.00039uF / MFD | 0.39nF | 390pF (MMFD) |

0.33uF / MFD | 330nF | 330000pF (MMFD) | | 0.00033uF / MFD | 0.33nF | 330pF (MMFD) |

0.3uF / MFD | 300nF | 300000pF (MMFD) | | 0.0003uF / MFD | 0.3nF | 300pF (MMFD) |

0.27uF / MFD | 270nF | 270000pF (MMFD) | | 0.00027uF / MFD | 0.27nF | 270pF (MMFD) |

0.25uF / MFD | 250nF | 250000pF (MMFD) | | 0.00025uF / MFD | 0.25nF | 250pF (MMFD) |

0.22uF / MFD | 220nF | 220000pF (MMFD) | | 0.00022uF / MFD | 0.22nF | 220pF (MMFD) |

0.2uF / MFD | 200nF | 200000pF (MMFD) | | 0.0002uF / MFD | 0.2nF | 200pF (MMFD) |

0.18uF / MFD | 180nF | 180000pF (MMFD) | | 0.00018uF / MFD | 0.18nF | 180pF (MMFD) |

0.15uF / MFD | 150nF | 150000pF (MMFD) | | 0.00015uF / MFD | 0.15nF | 150pF (MMFD) |

0.12uF / MFD | 120nF | 120000pF (MMFD) | | 0.00012uF / MFD | 0.12nF | 120pF (MMFD) |

0.1uF / MFD | 100nF | 100000pF (MMFD) | | 0.0001uF / MFD | 0.1nF | 100pF (MMFD) |

0.082uF / MFD | 82nF | 82000pF (MMFD) | | 0.000082uF / MFD | 0.082nF | 82pF (MMFD) |

0.08uF / MFD | 80nF | 80000pF (MMFD) | | 0.00008uF / MFD | 0.08nF | 80pF (MMFD) |

0.07uF / MFD | 70nF | 70000pF (MMFD) | | 0.00007uF / MFD | 0.07nF | 70pF (MMFD) |

0.068uF / MFD | 68nF | 68000pF (MMFD) | | 0.000068uF / MFD | 0.068nF | 68pF (MMFD) |

0.06uF / MFD | 60nF | 60000pF (MMFD) | | 0.00006uF / MFD | 0.06nF | 60pF (MMFD) |

0.056uF / MFD | 56nF | 56000pF (MMFD) | | 0.000056uF / MFD | 0.056nF | 56pF (MMFD) |

0.05uF / MFD | 50nF | 50000pF (MMFD) | | 0.00005uF / MFD | 0.05nF | 50pF (MMFD) |

0.047uF / MFD | 47nF | 47000pF (MMFD) | | 0.000047uF / MFD | 0.047nF | 47pF (MMFD) |

0.04uF / MFD | 40nF | 40000pF (MMFD) | | 0.00004uF / MFD | 0.04nF | 40pF (MMFD) |

0.039uF / MFD | 39nF | 39000pF (MMFD) | | 0.000039uF / MFD | 0.039nF | 39pF (MMFD) |

0.033uF / MFD | 33nF | 33000pF (MMFD) | | 0.000033uF / MFD | 0.033nF | 33pF (MMFD) |

0.03uF / MFD | 30nF | 30000pF (MMFD) | | 0.00003uF / MFD | 0.03nF | 30pF (MMFD) |

0.027uF / MFD | 27nF | 27000pF (MMFD) | | 0.000027uF / MFD | 0.027nF | 27pF (MMFD) |

0.025uF / MFD | 25nF | 25000pF (MMFD) | | 0.000025uF / MFD | 0.025nF | 25pF (MMFD) |

0.022uF / MFD | 22nF | 22000pF (MMFD) | | 0.000022uF / MFD | 0.022nF | 22pF (MMFD) |

0.02uF / MFD | 20nF | 20000pF (MMFD) | | 0.00002uF / MFD | 0.02nF | 20pF (MMFD) |

0.018uF / MFD | 18nF | 18000pF (MMFD) | | 0.000018uF / MFD | 0.018nF | 18pF (MMFD) |

0.015uF / MFD | 15nF | 15000pF (MMFD) | | 0.000015uF / MFD | 0.015nF | 15pF (MMFD) |

0.012uF / MFD | 12nF | 12000pF (MMFD) | | 0.000012uF / MFD | 0.012nF | 12pF (MMFD) |

0.01uF / MFD | 10nF | 10000pF (MMFD) | | 0.00001uF / MFD | 0.01nF | 10pF (MMFD) |

0.0082uF / MFD | 8.2nF | 8200pF (MMFD) | | 0.0000082uF / MFD | 0.0082nF | 8.2pF (MMFD) |

0.008uF / MFD | 8nF | 8000pF (MMFD) | | 0.000008uF / MFD | 0.008nF | 8pF (MMFD) |

0.007uF / MFD | 7nF | 7000pF (MMFD) | | 0.000007uF / MFD | 0.007nF | 7pF (MMFD) |

0.0068uF / MFD | 6.8nF | 6800pF (MMFD) | | 0.0000068uF / MFD | 0.0068nF | 6.8pF (MMFD) |

0.006uF / MFD | 6nF | 6000pF (MMFD) | | 0.000006uF / MFD | 0.006nF | 6pF (MMFD) |

0.0056uF / MFD | 5.6nF | 5600pF (MMFD) | | 0.0000056uF / MFD | 0.0056nF | 5.6pF (MMFD) |

0.005uF / MFD | 5nF | 5000pF (MMFD) | | 0.000005uF / MFD | 0.005nF | 5pF (MMFD) |

0.0047uF / MFD | 4.7nF | 4700pF (MMFD) | | 0.0000047uF / MFD | 0.0047nF | 4.7pF (MMFD) |

0.004uF / MFD | 4nF | 4000pF (MMFD) | | 0.000004uF / MFD | 0.004nF | 4pF (MMFD) |

0.0039uF / MFD | 3.9nF | 3900pF (MMFD) | | 0.0000039uF / MFD | 0.0039nF | 3.9pF (MMFD) |

0.0033uF / MFD | 3.3nF | 3300pF (MMFD) | | 0.0000033uF / MFD | 0.0033nF | 3.3pF (MMFD) |

0.003uF / MFD | 3nF | 3000pF (MMFD) | | 0.000003uF / MFD | 0.003nF | 3pF (MMFD) |

0.0027uF / MFD | 2.7nF | 2700pF (MMFD) | | 0.0000027uF / MFD | 0.0027nF | 2.7pF (MMFD) |

0.0025uF / MFD | 2.5nF | 2500pF (MMFD) | | 0.0000025uF / MFD | 0.0025nF | 2.5pF (MMFD) |

0.0022uF / MFD | 2.2nF | 2200pF (MMFD) | | 0.0000022uF / MFD | 0.0022nF | 2.2pF (MMFD) |

0.002uF / MFD | 2nF | 2000pF (MMFD) | | 0.000002uF / MFD | 0.002nF | 2pF (MMFD) |

0.0018uF / MFD | 1.8nF | 1800pF (MMFD) | | 0.0000018uF / MFD | 0.0018nF | 1.8pF (MMFD) |

0.0015uF / MFD | 1.5nF | 1500pF (MMFD) | | 0.0000015uF / MFD | 0.0015nF | 1.5pF (MMFD) |

0.0012uF / MFD | 1.2nF | 1200pF (MMFD) | | 0.0000012uF / MFD | 0.0012nF | 1.2pF (MMFD) |

0.001uF / MFD | 1nF | 1000pF (MMFD) | …… | 0.000001uF / MFD | 0.001nF | 1pF (MMFD) |

2011-2-25 21:10:10
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The unit of capacitance is the Farad (abbreviated to F) named after the British physicist Michael Faraday and is defined as a capacitor has the capacitance of One Farad when a charge of One Coulomb is stored on the plates by a voltage of One volt. Capacitance, C is always positive and has no negative units. However, the Farad is a very large unit of measurement to use on its own so sub-multiples of the Farad are generally used such as micro-farads, nano-farads and pico-farads, for example.

Microfarad (μF) 1μF = 1/1,000,000 = 0.000001 = 10-6 F

Nanofarad (nF) 1nF = 1/1,000,000,000 = 0.000000001 = 10-9 F

Picofarad (pF) 1pF = 1/1,000,000,000,000 = 0.000000000001 = 10-12 F

The capacitance of a parallel plate capacitor is proportional to the area, A of the plates and inversely proportional to their distance or separation, d (i.e. the dielectric thickness) giving us a value for capacitance of C = k( A/d ) where in a vacuum the value of the constant k is 8.84 x 10-12 F/m or 1/4.π.9 x 109, which is the permittivity of free space. Generally, the conductive plates of a capacitor are separated by air or some kind of insulating material or gel rather than the vacuum of free space.

2011-2-24 21:4:45
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Specially used for high quality audio products, also called audio film capacitors.

JFX--preminum metallized polypropylene film capacitors, Axial lead with large capacitance range, high quality, specially used for high quality audio products, also called audio film capacitors.

2011-2-23 7:4:44
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The parallel plate capacitor is the simplest form of capacitor and its capacitance value is fixed by the surface area of the conductive plates and the distance or separation between them. Altering any two of these values alters the the value of its capacitance and this forms the basis of operation of the variable capacitors. Also, because capacitors store the energy of the electrons in the form of an electrical charge on the plates the larger the plates and/or smaller their separation the greater will be the charge that the capacitor holds for any given voltage across its plates. In other words, larger plates, smaller distance, more capacitance.

By applying a voltage to a capacitor and measuring the charge on the plates, the ratio of the charge Q to the voltage V will give the capacitance value of the capacitor and is therefore given as: C = Q/V this equation can also be re-arranged to give the more familiar formula for the quantity of charge on the plates as: Q = C x V

Although we have said that the charge is stored on the plates of a capacitor, it is more correct to say that the energy within the charge is stored in an "electrostatic field" between the two plates. When an electric current flows into the capacitor, charging it up, the electrostatic field becomes more stronger as it stores more energy. Likewise, as the current flows out of the capacitor, discharging it, the potential difference between the two plates decreases and the electrostatic field decreases as the energy moves out of the plates.

The property of a capacitor to store charge on its plates in the form of an electrostatic field is called the Capacitance of the capacitor. Not only that, but capacitance is also the property of a capacitor which resists the change of voltage across it.

2011-2-22 6:58:23
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Just like the Resistor, the Capacitor, sometimes referred to as a Condenser, is a passive device, and one which stores its energy in the form of an electrostatic field producing a potential difference (Static Voltage) across its plates. In its basic form a capacitor consists of two or more parallel conductive (metal) plates that do not touch or are connected but are electrically separated either by air or by some form of insulating material such as paper, mica or ceramic called the Dielectric. The conductive plates of a capacitor can be either square, circular or rectangular, or be of a cylindrical or spherical shape with the shape and construction of a parallel plate capacitor depending on its application and voltage rating.

When used in a direct-current or DC circuit, a capacitor blocks the flow of current through it, but when it is connected to an alternating-current or AC circuit, the current appears to pass straight through it with little or no resistance. If a DC voltage is applied to the capacitors conductive plates, a current flows charging up the plates with electrons giving one plate a positive charge and the other plate an equal and opposite negative charge. This flow of electrons to the plates is known as the Charging Current and continues to flow until the voltage across both plates (and hence the capacitor) is equal to the applied voltage Vc. At this point the capacitor is said to be fully charged with electrons with the strength of this charging current at its maximum when the plates are fully discharged and slowly reduces in value to zero as the plates charge up to a potential difference equal to the applied supply voltage and this is show below.

2011-2-21 6:47:47
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jb Capacitors manufactures X2 Metallized Polypropylene Film Capacitor, which also named Interference Suppression Capacitors or X2 Safety Capacitors, and we sell quite competitive prices. This X2 Safety Capacitor have 4 approval markings: CQC, CE &TUV and UL

Minimum Order: 10000 pieces

2011-2-12 0:26:3
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Tin is a silvery-gray metallic element which has been used by humans for thousands of years. The symbol for tin is Sn, from the Latin stannum, and its atomic number is 50, placing it with other metals such as antimony and aluminum. Almost every continent on Earth has a source of tin, usually in the form of cassiterite, an oxide mineral which contains tin. In addition to the wide range of manufacturing uses for tin, the metal is also nutritionally necessary, albeit in trace amounts.

The word for the metal appears to have been borrowed from a pre-Indo-European language. Old forms of German and Dutch, among other languages, have cognates for the word, but the roots are somewhat unclear. The murky etymology of the word supports research by anthropologists which suggests that humans have been interacting with tin for at least 5,000 years, if not longer.

2011-2-11 0:22:31
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The term “nucleus” is used in several different ways in the sciences, although all cases reference a critical structure found at the center of something. In fact, the word “nucleus” means “kernel” or “core,” and it comes from an Ancient Greek word meaning “nut.” As a general rule, the nucleus is so critical that the surrounding structure cannot survive without it.

In biology, the nucleus is a small structure located inside the cells of eukaryotic organisms. The cell nucleus is actually one of the defining characteristics of eukaryotes, as the structure allows cells and organisms to reach a very high level of complexity. This structure without the cell contains the organism's DNA, and the nucleus is responsible for regulating gene expression, duplicating DNA as needed, and passing on hereditary traits, in the case of egg and sperm cells.

2011-2-10 23:9:58
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The atomic number of an element is equal to the number of protons in the nucleus of an atom of the element. Protons are positively charged particles found in the center of every atom. Each element has its own unique number and is differentiated from one another by the number of protons it has. The nucleus of an atom may also be home to neutrons, but the number of neutrons has no bearing on the element’s atomic number. Electrons reside just outside of the nucleus and also have no bearing on the number.