Todays deals on Bead Capacitors?

TANTALUM BEAD CAPACITOR 4.7uF 16V p=5mm…Pack of 25 $10.43

TANTALUM BEAD CAPACITOR 10uF 16V p=5mm…Pack of 25 $8.06

TANTALUM BEAD CAPACITOR 10uF 10V p=5mm…Pack of 25 $7.59

TANTALUM BEAD CAPACITOR 1uF 35V p=2.5mm…Pack of 25 $7.75

TANTALUM BEAD CAPACITOR 0.22uF 35V p=2.5mm…Pack of 25 $6.01

20 pcs tantalum bead dipped capacitor radial 1.5 uF 25V $13.00

Tantalum Bead Capacitor 10uF 16V (Pack of 5) $1.58

Tantalum Bead Capacitor 10V 47uF (Pack of 3) $1.56

25PCS 35 V 2.2 UF Tantalum bead capacitors RC $13.84

100uf 20V Dipped Tantalum Bead Capacitor Kemet 5mm pitch 5 pieces T43 $7.89

20 x 1.5uf 35volt tantalum bead capacitor 5mm pitch 35v $6.15

10PCS 16 Volts 47 UF Tantalum bead capacitors RC $10.61

100 .33 UF MFD 50V 330 NF CERAMIC BEAD AXIAL CAPACITOR $7.99

TANT BEAD CAPACITOR: 100UF/16volt 5 mil $4.19

6PCS 16 V 100 UF Tantalum bead capacitors 2.5MM RC $9.75

5PCS 16 Volts 100 UF Tantalum bead capacitors RC $9.75

TANT BEAD CAPACITOR: 1uf/35v (5 mil) X5 PCS $3.94

TANT BEAD CAPACITOR: 100UF/10V 5 mil $3.94

Dipped Tantalum Bead Capacitor 15uf 10V 2.5mm T13 10pcs $4.35

10PCS 25 V 22 UF Tantalum bead capacitors RC $9.15

47uf 6V TANTALUM CAPACITORS Kemet Dipped Bead – LOT of 20 $4.83

Dipped Tantalum Bead Capacitors 10uf 10V 2.5mm T21 10pc $2.77

5PCS 25 Volts 33 UF Tantalum bead capacitors RC $7.70

Dipped Tantalum Bead Capacitor 3.3uf 25V 2.5mm T18 x 10 $2.69

Dipped Tantalum Bead Capacitors 6.8uf 16V 5mm T1 10pcs $2.77

Dipped Tantalum Bead Capacitors 10uf 10V 5mm T21A 10pc $2.69

Dipped Tantalum Bead Capacitors 4.7uf 10V 5mm T22 20pcs $2.37

50 .33 UF MFD 50V 330 NF CERAMIC BEAD AXIAL CAPACITOR $5.25

Dipped Tantalum Bead Capacitors 4.7uf 10V 5mm T6 10pcs $2.36

47uF Tanatulum Bead Capacitors 2.5mm Pitch Pack of 2 $1.56

5PCS 16 V 47 UF Tantalum bead capacitors RC $6.33

5PCS 25 Volt 22 UF Tantalum bead capacitors RC $6.33

10PCS 25 V 10 UF Tantalum bead capacitors RC $6.32

Lot of 8 EMC Filter Ferrite Bead with Capacitor $1.00

0.22UF 35V 2.5MM Tantalum bead capacitors x 10 $2.50

0.001 uf 50 Volts Ceramic Bead w/ Axial leads – 10 pcs $2.00

25pcs TANTALUM BEAD CAPS 4.7µF 16V 2.5MM $0.47

25pcs TANTALUM BEAD CAPS 10µF 10V 2.5MM $0.47

25pcs TANTALUM BEAD CAPS 10µF 16V 5MM $0.47

25pcs TANTALUM BEAD CAPS 22µF 6V 5MM $0.47

Bead Capacitors Questions

LED fluorescent analysis of four key technology design

Fluorescent tube is widely used in daily life, supermarkets, schools, office market, subway, etc., when it comes to appear a public place can see the fluorescent light of the extensive use! LED fluorescent lamp energy saving performance, after a long period of hype, we have been very accepted, but returned to spend heavily for LED fluorescent tubes, many of which are now come to a low-cost energy-saving lamps with the same situation: Energy without section money! But a lot of waste of money, how to make LED service life and brightness to the satisfaction of using the standard, is a very meaningful topic! LED Fluorescent tube to maintain long life and high brightness, problems to be solved is: power, LED lighting, cooling, security, four key technologies.

    1, power

    First and foremost requirement is that the efficiency of power supply, high efficiency products, lower the heat on the stability of necessarily high. Often useful to supply some of isolated and non-isolated two programs are relatively large volume of isolation, low efficiency in use, the installation will have many problems, as non-isolated products in the market for the prospects, in which we discuss the non-isolated driver program.

    The use of non-isolated LED fluorescent lamp power supply to Taiwan’s technology companies A704WFT wide Peng example, A704WFT the MOS control plug-in, the basic circuit shown in Figure 1:

Basic circuit diagram

Basic circuit diagram

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    Power supply features:

    1 electricity power supply (85 ~ 265V), external MOS, unlimited power;

    2, low power, high efficiency, high power factor;

    3, with the load and short circuit protection, output overvoltage protection, current ripple characteristics of a good, similar to DC output current DC, no lights flash phenomenon, high load capacity, can drive up to 600mA of current;

    4, the customer has made a 15W standard circuit, 88% efficiency, power factor 0.91 by CE certification, including EN55015 for EMI testing, the following C type lighting 25W harmonic standard, EFT’s 1000V burst test, ESD’s 2000V static test. 15 string application can output a low voltage control, without the use of large pieces of traditional capacitors can be very good control of the output current harmonics;

    5, A704′s LED solar applications mature and reliable, we can provide LED fluorescent lamp can be had EMC test PCB and BOM table reference line, improve customer product design and development speed!

    2, LED light source

    Taiwan, Okinawa Cummings patent by the structure of LED lamp beads, placed in the pin of the chip, heat over silver foot node directly to the chip produced by tropical out-line with traditional products and traditional products in the heat patch there are qualitatively different, the chip junction temperature will not be cumulative, thus ensuring a good light source lamp beads use, ensure the light source lamp beads of long life, low lumen.

    Traditional product placement, though the gold chip connected through positive and negative, but also to chip the heat for gold wire connected to the silver feet, heat and electric conductivity were conducted by the money, the heat will accumulate a long time LED fluorescent tube directly affect the life.

    The traditional route and thermal conductivity of product placement as follows Figure 2:

SMD

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    The Okinawa Cummings of LED transmission routes and methods are as follows Figure 3:

Okinawa Cummings

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    Okinawa Cummings’s patented LED chip cooling structure allows the heat generated by the node quickly brought out, the chip Department does not generate heat accumulation, LED light source in order to achieve long-life lamp beads can be used. And Okinawa Cummings LED life test in the process, the high and low temperature impact, Reflow Soldering, high temperature and humidity of the use of complex application environments have done a complete experimental analysis to ensure the normal use of low-light Decline Long Life!

    3, heat

    Thermal infrared radiation will be introduced and used in fluorescent tubes, is an important means to improve lamp life. Consideration in the heat, we heat LED light source lamp beads separate heat and power, mutual interference, to ensure heat dissipation is reasonable.

    There are three ways of heat conduction, convection, conduction and radiation. In a closed environment, convection and conduction to achieve may be smaller, distributed through out the thermal radiation is a fluorescent tube into serious account. The following is doing the test data LED fluorescent tube, LED silver foot pad in the outside temperature measured only 58 degrees.

    Test findings

  Test findings

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    These data as input power: 11.2 watts, luminous flux in: 890LM when the test report. The maximum tube temperature of 40.213 degrees, so the temperature to the power of the capacitor can calmly work long hours, thus ensuring the supply of long-life use!

    Fourth, security

    Security, where the main flame-retardant plastic tube that PC, because infrared heat can penetrate the PC pipe, we design considerations when using LED lights can be more consideration of their safety, physical insulation with plastic, even if the use of non- isolated power supply can absolutely guarantee the safety of use.

    LED Fluorescent Lamp has been developing for a long time, from the effect of energy saving point of view, its future is very broad application area, in addition to energy, its security, the use of long life is that we should concern!

    Security! In the design of LED fluorescent lamp is the first element, use the PC fluorescent flame-retardant materials, in solving the security problems, how to improve the life of the projects proposed by the above solution to give the number of LED fluorescent tube manufacturers to provide more way of thinking!
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