Capacitors Blog

With the trend of portable electronic products, chip product demand gradually increase, Tantalum is no exception. It is learned that the traditional lead tantalum capacitor market demand has decreased year by year, chip tantalum capacitor market demand will increase year by year. Dealers said that despite the high prices of tantalum capacitors because of the market share in the capacitance ceramic capacitors and aluminum eroded, but also the development of its own saved for the long-term stability of the environment, which cater to the development trend of electronic products, chip on their products dominated by reversing the very most of the market.

It is learned that global chip tantalum electrolytic capacitors of the chip rate has been 71% in 1995, the current development of the chip rate was over 90%. Its greatest application in the field of mobile phones, accounting for about 36.2%, use increased from 5 to 20pcs on each cell phone. Another AV audio-visual products and notebook computer is an important application areas of chip tantalum capacitor, which accounted for 32% and 15.1%.

The industry has said that prices of tantalum capacitors is the major issues of restricting its market share, it is understood that the greatest threat to its current MLCC, the market reflects that, at present, MLCC and tantalum capacitors is between 1.0 to 100uF market competition. However, tantalum capacitors inherent performance advantages or other products can not be replaced, in some key areas of high demand, circuit designers will take tantalum capacitor as the first choice.

Reporters on the spot market from understanding the situation, because of higher prices tantalum capacitors, ceramic capacitors than aluminum capacitors and small market share. According to the dealers, in recent years, tantalum capacitor lost 10% of the market share, of which 6% of the ceramic capacitor occupies 3% of the aluminum capacitor possession, other devices accounted for 1%. In the future, chip tantalum capacitor will became base for dealers.

Here TS20 is P/N of chip tantalum capacitor of Suntan, With Case A/B/C/D and capacitance from 0.1uF - 220uF and Voltage from 6.3V to 50V,

which can fullfill wide range of requests. Luck to say some fresh stocks are available currently.

TS20 Spec link: http://www.suntan.com.hk/pdf/Tantalum-Capacitors/TS20.pdf

Suntan technical department are ready here to provide further supports and sales are waiting for new inquiry.

Old customers welcome to check offers with Suntan sales, and new customers, please click info@capacitors.com.hk to check prices and stocks !

Thank you for your attention!

In past times Suntan X2 capacitors win good fame in market, to fulfill various demands, in the early of 2011, TS08S was launched !

Bright yellow box type with different approvals and Red Suntan logo shows more attractive outer appearance, a special point you could find from pictures is cULus mark which means this approval is for both Canada & USA.

TS8S wons folloing features :

1.Rated at 275 Volts AC for use in USA, Canada and world-wide.

2.Provides interference suppression with cULus.VDE, CE safety approvals.

3.Dielectric Strength:1200 VDC for 60sec.

4.High dv/ dt capabilities

5. ideal for line-by-pass, antenna coupling, accross-the-line available for EMI filter, switching power supply, radio application

6.Operating temperature rang-40ºC~+100ºC, capacitance range from 1000pF - 2.2uF, special value can be customized.

The strongpoint for this X2 at present is close to inventory delivery & more competitive prices.

Sufficient raw materials for standard values have been prepared,

L/T is just 3 weeks for bulk order under 300kpcs for P:15mm or 10mm, while 5 weeks for larger Pitches.

Even only 7 weeks for some special values and customized items.

Samples are open and worth for testing, even most of in stocks or could be get ready in short time.

Following fresh stock items in July for reference:

200kpcs - 0.1 uF 275VAC +/-10% P:15mm

100kpcs - 0.22uF 275VAC +/-10% P:15mm

Smaller quantity for various values are available for inventory delivery

Technical department are ready here to provide further technical information and sales at Suntan are waiting for new inquiry.

Old customers welcome to check offers with our sales, and new customers, please click info@capacitors.com.hk to check prices and stocks !

Thank you for your attention!

Natural mica contains many other materials including, iron, sodium, ferric oxide, and lithium. Because of the variability in composition of natural mica, mica destined for use in capacitors must be carefully inspected and classified, which adds to the manufacturing cost. All varieties of mica are chemically very stable and inert. Mica does not react with oil, water, most acids, (the exceptions are hydro-fluoric and sulfuric acid) alkalis, and solvents.

Mica’s thermal, electrical, and chemical properties make for excellent capacitors. Capacitance change with temperature range from ± 500 ppm/°C to 50 ppm/°C, depending on the construction technique. Mica capacitors exhibit very little voltage dependence, with dC/dV less than 0.1%. Mica capacitors have high Q or conversely small power factors (range 0.0001–0.0004) that are quite independent of frequency. This, combined with low inductance designs, result in capacitors that are ideal for high frequency and RF applications. Specification sheets of mica capacitors commonly show parameters plotted into the gigahertz range.

There are many types of mica, but only six or so are common rock-forming minerals. Mica capacitors are normally made from muscovite mica, or potassium aluminum silicate, KAl₂Si₃O₁₀(OH)₂ . It is thermally stable up to 500°C, and has a high dielectric strength. Phlogopite mica, or potassium magnesium silicate, KMg₃Si₃AlO₁₀(OH)₂ , is softer than muscovite mica and has less desirable electrical characteristics, but

it may be used up to 900°C. Mica deposits are found in Madagascar, Central Africa, South America, and India. India is probably the biggest supplier of mica.

For meeting more and more customer's requirement on the urgent delivery, recently Suntan made an important decision that we will keep stock for some series, starting from tantalum capacitor which is always with long lead time, as well as hot offer TS08S X2 capacitors.

From the year of 2010, with the order increased sharply, our production lines are always overload and the delivery schedule is longer than former accordingly. Our management realized the importance and emergency of the availability of stocks, and decided to keep stock for some common series. The lead time of tantalum capacitor are extremely long, and the current requirement from the market for our TS08S X2 capacitor is fairly well, as a result we chose these 2 series as a starting. If you need these 2 series, just feel free to check with Suntan professional sales if any stock available or not. With the support from customers, we believe our stock could cover a wider range of series in the near future!

Shortcut to specs:
Tantalum capacitor - radial ---> http://www.suntan.com.hk/pdf/Tantalum-Capacitors/TS19.pdf
Tantalum capacitor - SMD ---> http://www.suntan.com.hk/pdf/Tantalum-Capacitors/TS20.pdf
X2 capacitor ---> http://www.suntan.com.hk/pdf/Plastic-Film-Capacitors/TS08S.pdf

Dipped Ceramic Capacitors. The simplest ceramic capacitor consists of a square or circular shaped

ceramic with electrodes attached (see figure). The capacitance is given by where A is the area of the two plates, is the dielectric permittivity of vacuum, Kd is the dielectric's dielectric constant and d is the distance between the two plates.

Aluminum electrolytic capacitors are comprised of anode and cathode plates separated by an absorbent spacer. As shown in Figure below, metal tabs are attached to the anode and cathode plates, and the assembly is wound into a cylindrical section. The tabs are welded to aluminum terminals installed in a header (top). The section-header assembly is immersed in a bath of hot capacitor electrolyte (significantly different from the formation process electrolyte). In what is called the impregnation process, a vacuum is applied to the electrolyte and sections, causing electrolyte to be drawn into the sections, thoroughly wetting the sections. The sections are placed in aluminum cans, and the headers are sealed to the cans. The capacitor units are slowly brought up to maximum rated voltage at maximum rated temperature during the aging process. The aging process grows oxide on areas on the anode foil which have an insufficient oxide barrier, such as slit edges and places which have been cracked during the winding operation. Inspections and tests occur at several stages of the production process.

A capacitor, also known as a condenser, is a component in electronic devices. It consists of a combination of three objects. First, a pair of objects called conductors conducts electricity. The conductors are separated by a dielectric, which is a substance that does not conduct electricity. Common dielectrics include substances such as paper, ceramic and plastic.

When an electric current exists between the two conductors, it creates an electric field in the dielectric, which can then store energy. The most effective capacitors employ conductors that are wide and flat, as well as being perfectly parallel, with a very small distance between them.

A run capacitor is a particular type of capacitor. A run capacitor uses the charge stored in the dielectric in order to boost the electrical current providing power to an electric motor. This type of capacitor is created to maintain a charge during constant use of the motor. These capacitors are often found in devices, such as heaters, that are continuously running.

One variety of run capacitor is often used in air conditioners. This type of run capacitor is called a dual run capacitor, and uses two run capacitors for two different functions. In an air conditioner, for example, one run capacitor is used to boost the fan motor, and another is used to boost the compressor motor.

Run capacitors typically are classified at 370 or 440 volts. It is necessary to ensure that the correct rating of run capacitor is installed in an engine. If a run capacitor with an incorrect voltage rating is installed in a motor that requires a capacitor for second-phase energy, it will throw off the magnetic field. An uneven magnetic field will cause the rotor to slow in the uneven spots, which increases energy noise, as well as power consumption, and can also cause performance problems and overheating issues.

The manufacture begins with the basic circuit board, primed and printed. This printed circuit board for BGA has pads made of copper and these are arranged in the grid pattern that the solder balls are designed to have.

After the solder balls have been precisely arranged on the surface of the printed circuit board, the soldering process would begin. Surface mount soldering would proceed through reflow soldering (with the aid of a reflow oven that uses infrared or vapors as the heat source). At this point, the metal alloy balls would melt due to extreme temperatures. As the whole assembly cools, the solder balls will solidify and the package will become firmly affixed to the circuit board.

Suntan Technology Company Limited
----All Kinds of Capacitors

There is one other common packaging for integrated circuits and this is the PGA or Pin Grid Array. The BGA looks physically similar to a Pin Grid Array package. Both are one-sided; that is, only one face of the semi-conducting substrate is used for printing and mounting of circuit components. Moreover, both have an obvious grid-like pattern. However, the Pin Grid Array uses pins - thus, the name - whereas the BGA uses balls - as it has already been mentioned above. The pins (in the PGA) or the balls (in the BGA) are the materials through which electricity is conducted between the printed surface of the semiconductor board and the surface-mounted circuit components.http://www.capacitors.hk/