Capacitors Blog

Suntan Technology Company Limited
---All Kinds of Capacitors

Tantalum capacitors offer greater capacitance in a more compact form factor, along with superior temperature and DC bias characteristics compared with ceramic chip capacitors.
In addition, conductive polymer is used at the cathode for greater conductivity than conventional manganese dioxide, resulting in significantly lower ESR (Equivalent Series Resistance).

Our TS20L series is LOW ESR Chip Tantalum Capacitor. This type of capacitor is with 6 different sizes ( S case, A case, B Case, C case, D case, E Case ). 
1. Temperature Range: -55°C~+125°C (>80°C with rated volted darating)
2. Laser-markec Case 
3. Capacitance tolerance: +/-20%; +/-10% (for special order)
4.DC leakage at 25°C:1o<=0.01 Cr or 0.5Ma (Whichever is greater) Above features make it is good for SMT electric board used for telecommunication computer camcorder and mobile phone set and so on.
We are Hong Kong based manufacturer  , and offer all kinds of capacitors ,our branded products sell well in the market ,if you are interested ,please contact us immediately .

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

Data shows that more and more people start using multi-layer ceramic capacitors/MLCC, and increasingly optimistic about their new circuit design applications. In the past five to ten years, MLCC and tantalum capacitor capacitance of unit volume has been increased 10 to 100 times as before, MLCC application areas have gradually expanded to previously dominated by the tantalum capacitor site. Currently, MLCC and tantalum capacitors is competing between 1.0 to 100uF market. Many circuit design found that the new generation of large capacitance MLCC can better meet their needs, and higher production level (currently producing about 600 billion, and tantalum capacitors for 25 billion). Moreover, manufacturers of basic metal electrode and technological improvements have greatly reduced the cost of MLCC, which also increased victory chips for MLCC occupation tantalum capacitor market.

And at present ceramics are most cost affective in small sizes. Very large ceramics are a bit of a challenge, especially in SMD.

Currently the large case Suntan offer is up to 2225/3030 at Voltage 500V is 0.68uF, at Voltage 1000V is 0.1uF.

The main voltage : 50V, 100V, 200V, 500V, 1KV, 2KV, 3KV, 4KV

Material : NPO, X7R, Y5V

Size case : 0402, 0603, 0805, 1206, 1210, 1808, 1812, 2220/2225, 3030

MLCC- Suntan TS18 - http://www.capacitors.hk/Ceramic-Capacitors/TS18.html

High Voltage MLCC Suntan TS18H - 
http://www.capacitors.hk/Ceramic-Capacitors/TS18H.html

Application:

DC-DC converter

The circuit filter and vibration bell of telephone, electrograph and modem.

Snubber circuit for switching power supply.

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 sales@suntan.com.hk to check prices and stocks !

Thank you for your attention!

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!

Now Suntan can support shorter lead time than other manufacturers on below series.

Mini Box Metalized Polyester Film Capacitor, only 5~6 weeks. Hot Offer Now!

General TS05 series: http://www.suntan.com.hk/pdf/Plastic-Film-Capacitors/TS05.pdf

Stacked TS05S series: http://www.suntan.com.hk/pdf/Plastic-Film-Capacitors/TS05S.pdf

Dipped Tantalum Capacitor TS19 series: http://www.suntan.com.hk/pdf/Tantalum-Capacitors/TS19.pdf

Besides, we now have strong support on our trimming potentiometer.

Trimming Potentiometer TSR series: http://www.suntan.com.hk/Trimming-Potentiometers/

If you have any requirement for these, please do check details with our experienced sales!

The low leakage and high capacity of tantalum capacitors favors their use in sample and hold circuits to achieve long hold duration, and some long duration timing circuits where precise timing is not critical. They are also often used for power supply rail decoupling in parallel with film or ceramic capacitors with low ESR and reactance at high frequency. Tantalum capacitors can replace aluminum electrolytic capacitors in situations where the external environment or dense component packing results in a sustained hot internal environment and where high reliability is important. Equipment such as medical electronics and space equipment that require high quality and reliability make use of tantalum capacitors.

Low-voltage tantalum capacitors are commonly used in large numbers for power supply filtering on computer motherboards and in peripherals due to their small size and long-term reliability.

When applying tantalum capacitors, the possibility of thermal runaway (see above) or spontaneous short-circuiting is usually considered. In many cases, a failed capacitor will cause termination of normal circuit operation, but no other ill effects. However, if sufficient power is available, catastrophic thermal runaway may cause a fire or small explosion. If this situation is a possibility, external current limiting (e.g. thermal fuse, circuit breaker) is often used to prevent catastrophic failure.

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

(1)Because the solid tantalum capacitor is of polar type, do not apply a reverse voltage to it.

(2)The figure on the below shows the relationship between current and reverse voltage.

Suntan Technology Company Limited
---All Kinds of Capacitors

Of much less concern, yet still important, especially in audio applications, is the micro phonic or piezoelectric effect. Barium titinate which is the base ceramic material for most dielectric systems will exhibit microphonic effects. It is not very difficult to take a Y5V capacitor and put a DC bias with a small signal 1kHz sine wave and get the capacitor to “sing”. Tantalum capacitors exhibit no microphonic effects. The experiment done by AVX involved the opposite phenomena whereby the part was shaken while under bias and the resulting generated voltage was measured. This was done for a series of 1µF devices and the results are shown in Fig below.

Tantalum (atomic number 73) is a dense and ductile metal that is silver-gray in color. It is considered both a refractory metal, due to its high melting point of 5,425 degrees Fahrenheit (2,996 degrees Celsius), and a valve metal, due to its tendency to oxidize, which forms an insulating film. For these reasons, tantalum is commonly used in capacitors, or devices that store electrical charges. Cell phones, computers, mp3 players and many other electronic devices use tantalum capacitors, which have several advantages over other types of capacitors.

Tantalum Capacitors can pack a lot of energy into a very compact package. This is an essential quality when it comes to electronic devices, particularly cell phones, mp3 players and portable computers, which have been persistently getting smaller and smaller. Due to their high energy densities, engineers and designers can easily mount tantalum capacitors into the tiniest of circuits, without having to sacrifice energy output. According to engineersedge.com, a tantalum capacitor rated at 10-microfarads (which are units of capacitance, or the ability of a device to store a charge) can produce the same amount of voltage as a 100-microfarad aluminum capacitor.

This variant of the tantalum capacitor family is also known as the solid tantalum, and it is the variety that is most commonly used. Many millions of them are sued each day, and they can be found in many items of consumer and commercial electronic equipment.

The capacitor was developed by the Bell Telephone Laboratories by using a porous anode and then replacing the liquid electrolyte with a solid semiconductor. This overcome the problem od requiring a vent that is common to all other forms of electrolytic capacitor.

These capacitors are superior to electrolytic capacitors in many ways exhibiting excellent temperature and frequency characteristics. They are also smaller than their aluminium electrolytic counterparts.

The reliability of the solid tantalum capacitor is heavily influenced by environmental conditions such as temperature, humidity, shock, vibration, mechanical stresses, and electric stresses, including applied voltage, current, ripple current, transient current and voltage, and frequency. When using solid tantalum capacitors, therefore, provide enough margin so that the reliability of the capacitors is maintained.

Voltage and temperature are important parameters when estimating the reliability (field failure rate).