Suntan Blog

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.

Currrently 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.suntan.com.hk/pdf/Ceramic-Capacitors/TS18.pdf

High Voltage MLCC Suntan TS18H- http://www.suntan.com.hk/pdf/Ceramic-Capacitors/TS18H.pdf

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 info@capacitors.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!

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

The tantalum capacitor is a highly reliable type of solid capacitor or electrolytic capacitor. Surface mount tantalum capacitors are increasingly being used in circuit designs because of their volumetric efficiency, basic reliability and process compatibility.

Tantalum capacitors are manufactured from a powder of relatively pure tantalum metal. The typical particle size is between 2 and 10 μm. Surface area is expressed in capacitance (C) in microfarads (µF) times voltage (V) in volts (V) per gram of powder (CV/g) Note the very great difference in particle size between the powders.

Our Suntan Technology Company has many types of tantalum capacitors ,such as Dipped Tantalum Capacitor-TS19,Please see the detailed information on our website www.suntan.com.hk for your reference ,and welcome your enquiry about our all kinds of capacitors.

The invention of the capacitor varies somewhat depending on who you ask. There are records that indicate a German scientist named Ewald Georg von Kleist invented the capacitor in November 1745. Several months later Pieter van Musschenbroek, a Dutch professor at the University of Leyden came up with a very similar device in the form of the Leyden jar, which is typically credited as the first capacitor. Since Kleist didn't have detailed records and notes, nor the notoriety of his Dutch counterpart, he's often overlooked as a contributor to the capacitor's evolution. However, over the years, both have been given equal credit as it was established that their research was independent of each other and merely a scientific coincidence.

The Leyden jar was a very simple device. It consisted of a glass jar, half filled with water and lined inside and out with metal foil. The glass acted as the dielectric, although it was thought for a time that water was the key ingredient. There was usually a metal wire or chain driven through a cork in the top of the jar. The chain was then hooked to something that would deliver a charge, most likely a hand-cranked static generator. Once delivered, the jar would hold two equal but opposite charges in equilibrium until they were connected with a wire, producing a slight spark or shock.

Benjamin Franklin worked with the Leyden jar in his experiments with electricity and soon found that a flat piece of glass worked as well as the jar model, prompting him to develop the flat capacitor, or Franklin square. Years later, English chemist Michael Faraday would pioneer the first practical applications for the capacitor in trying to store unused electrons from his experiments. This led to the first usable capacitor, made from large oil barrels. Faraday's progress with capacitors is what eventually enabled us to deliver electric power over great distances. As a result of Faraday's achievements in the field of electricity, the unit of measurement for capacitors, or capacitance, became known as the farad.

For more information on capacitors and related topics, check out the links on the next page.

Greenville, SC - KEMET Corporation announced the release of the first ever 35V rated surface mount polymer tantalum chip capacitor.

Since their introduction in the '90s, polymer tantalum capacitors have become a popular choice for capacitance solutions in portable consumer electronics due to their low ESR (Equivalent Series Resistance), high reliability, volumetric efficiency, low profile design and benign failure mode. To date, these devices have been most commonly used in applications at or below 14V and are limited to voltage applications that cannot exceed 20V of continuous duty. These voltage restrictions are driven by limitations in the materials of construction and manufacturing processes that have until today prevented the industry from achieving higher voltage ratings.

"This first-to-market technology represents a significant breakthrough for design engineers," stated Dr. Philip Lessner, KEMET's CTO and Chief Scientist. "Military, aerospace, power supplies and industrial applications will all benefit from this advancement. Our first significant order has been placed by a U.S. military contractor to enhance the performance of a key communications network system that is used by multiple defense agencies around the world," continued Lessner.

By overcoming these voltage limitations through advances in materials and manufacturing processes, KEMET has successfully constructed and qualified the first polymer tantalum capacitors suitable for applications of up to 25V of continuous duty. In addition, these devices have demonstrated surge voltage handling capabilities in excess of 46V. This increase in voltage rating now provides designers working with higher voltage applications, such as 20V to 24V power input rails, with the option of incorporating polymer tantalum technology into new designs as opposed to settling for capacitance technologies that do not offer similar performance advantages.

Designated as the T521 Series, KEMET's initial offering of this new series includes the popular low profile V Case Size (7.3mm x 4.3mm x 1.9mm) with a capacitance rating of 15uF and maximum ESR ratings of 125 milliohms. Future releases will include higher case heights (7.3mm x 4.3mm x 3.0mm) with target capacitance values of 22uF and 33uF as well as smaller footprints (3.5mm x 2.8mm x 2.0mm) targeting application voltages of 6.8uF and less.

Sample quantities are available upon request through your local KEMET Representatives. Mass production quantities are available in increments of 1000 pieces.

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 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.

The tantalum foil capacitor was introduced around 1950. It was developed to provide a more reliable form of electrolytic capacitor without the shelf life limitations of the aluminium electrolytic capacitor. It was able to be developed as a result of the availability of high purity tantalum foils and wires. Initially plain foil variants were introduced, but this was quickly followed by etched variants.

The purity of the materials used plays a major part in determining the leakage current of this type of tantalum capacitor.

These tantalum capacitors have a higher capacitance density than their aluminium electrolytic counterparts. They can often operate at temperatures up to about 120C and therefore they are often used in equipment used in extreme conditions. For any other Tantalum Capacitors, Please go to website www.suntan.com.hk. You may find your interested in products here.

Tantalum capacitors are manufactured from a powder of pure tantalum metal pressed to form a slug around a tantalum wire and subsequently vacuum sintered at high temperature. The resulting slug, although of high mechanical strength and density, is also highly porous giving a large internal surface area. This forms the positive "plate" of the capacitor. A dielectric layer of tantalum pentoxide is anodized on the surface of the tantalum anode, the cathode is formed by layers of manganese dioxide. Electrical contact is established by the deposition of carbon onto the surface of the "slug". The cathode connection is then made by means of conductive contact to a lead frame. Packaging is carried out to meet individual specification and customer requirements.