offer all kinds of Capacitors informations

Choice of capacitor dielectric

Capacitors use a variety of different substances as their dielectric material. The material is chosen for the properties it provides. One of the major reasons for the choice of a particular dielectric material is its dielectric constant. Those with a high dielectric constant enable high values of capacitance to be achieved - each one having a different permittivity or dielectric constant. This changes the amount of capacitance that the capacitor will have for a given area and spacing.

The dielectric will also need to be chosen to meet requirements such as insulation strength - it must be able to withstand the voltages placed across it with the thickness levels used. It must also be sufficiently stable with variations in temperature, humidity, and voltage, etc.

Silver Mica capacitors

Mica is chemically very stable and chemically inert. Mica does not react with oil, water, many acids alkalis, and solvents. As a result of this, ageing does not occur to any major degree, and the variations of water vapour in the atmosphere do not cause undue variations in the overall capacitor performance.

Although more costly than other dielectrics, mica is an ideal form of dielectric for very high performance capacitors such as silver mica capacitors. A summary of the properties of mica are given below:

Suntan (St Trademark) will be interested to provide you the Silver Mica capacitors.Such as :DM5;DM10;DM15;DM19;DM20;DM30;DM42.Any of your inquire please don't hesitate to contact us.We will reply you atthe first time and solve your problems.

The various shapes and styles of Ceramic capacitors

As of 2007, ceramic disc capacitors are in widespread use in electronic equipments, providing high capacity and small size at low price compared to other low value capacitor types.

Ceramic capacitors come in various shapes and styles, including:

• Disc, resin coated, with through-hole leads.
• Multilayer rectangular block, surface mount.
• Bare leadless disc, sits in a slot in the PCB and is soldered in place, used for UHF applications.
• Tube shape, not popular now.

Suntan (St Trademark) ceramic capacitors has various shapes and styles,Let me introduce to you.

• TS15 is Ceramic Disc Capacitor;
• TS16 is High Voltage Ceramic Capacitor;
• TS16L is Low D.F., Disc(A And B Series);
• TS16M is Mini Type Ceramic Capacitor;
• TS17 is Multilayer (mono) Axial & Radial;
• TS18 is Multilayer Ceramic Capacitor - SMD;
• TS18H is High Voltage Multilayer Ceramic Capacitor - SMD.

Any if you are interested in our ceramic capacitors, you can send the inquiry to us,we will try our best to meet your requests.

Electrolytic the two types:Aluminum and Tantalum

An electrolytic capacitor is a type of capacitor that uses an electrolyte, an ionic conducting liquid, as one of its plates, to achieve a larger capacitance per unit volume than other types. They are often referred to in electronics usage simply as "electrolytics". They are used in relatively high-current and low-frequency electrical circuits, particularly in power supply filters, where they store charge needed to moderate output voltage and current fluctuations in rectifier output. They are also widely used as coupling capacitors in circuits where AC should be conducted but DC should not.

There are two types of electrolytics:Aluminum and Tantalum.Our suntan capacitors have this two types of electrolytics.Welcome to send the inquire for our suntan capacitors and we will send the datasheet for your kind review.

Suntan will attend ElectronicAsia 2008 in Hong Kong this October

Date : 13-16 October 2008.
Venue: HK Convention and Exhibition Centre
Suntan booth # : 7N02 > 7N04

We will present our hot selling produts including Tantalum Capacitor -Dipped > SMD, Ceramic Capacitor--Disc type, high voltage > SMD type, Film Capacitor--Polyester, Polypropylene > X2 type, Electrolytic Capacitor--Snap in , Radial, Axial, Screw , SMD type 85'C, 105'C , BI-Polar, Non-Polar, Silver Mica capacitor, Ceramic Trimmer Capacitor , Varistor-Dipped > SMD type and Trimming Potentiometers .

Electronica 2008 Electronics trade Fair will be held in Munich, Germany this Nov. 11-14, 2008

Suntan booth number in this fair is : C4-231/6.

This fair is the leading trade fair of this world for electronics from semiconductors, passives, electromechanical components, solutions for system peripheries, servo-technology all the way to printed circuit boards or EMS. From displays, sensor technology solutions, power supplies, electronic design (ED/EDA) to software for electronics. From the innovation drivers automotive, wireless, embedded and micronano all the way to medical technology.

Suntan Tantalum Capacitor News III

Our below TS20 Chip Tantalum Capacitor itemsare hot selling :

• 10uF 16V 20% A Case
• 1uF 35V 20% B case
• 0.47uF 50V 20% C Case
• 47uF 10V 20% C Case
• 47uF 25V 20% D Case
• 100uF 6.3V 20% C Case
• 220uF 6.3V 20%D Case
• 330uF 4V 20% E Case
• 470uF 6.3V 20% C case

These Chip Tantalum Capacitor are with very good performance in different application field.

This November, our company will attend Electronica2008 in Munich, Germany. At this fair, we will strongly recommend our Tantalum Capacitors to visitors and customers from all over the world. Especially TS19 Dipped Tantalum Capacitor and and TS20 Chip Tantalum Capacitor will be our focus.From the sales performance of2008 first half year, the two Tantalum Capacitors bring us very good business and customers' comment to the two series is satisfactory , these bring us more confidence to expand our market for Tantalum Capacitors all over the world, especially in Europe and in America.

Tantalum Capacitor News II

Tantalum Capacitor has strict demand on storage conditions.  The Storing period is 10 years after manufacturing., in principle (excluding solderability).

In order to assure use, tantalum capacitors stored for over two years or processedthrough dipping molten solder prior to using preferably applied rated voltage while inherent resistance of the power supply is not more than 3Ω(For Non-solidtantalum capacitor, connect a protection resistor of 1100Ω max., in series to the capacitor), and withstand aging at 85℃ for 4-8 hours, then make measurement. The lead terminals of non-polar tantalum capacitor are reversed once every onehour and measurement of DC leakage current is also conducted on the two lead terminals respectively.

Store the Tantalum Capacitor in the package not to be exposed to direct sunlight and dust. Store in the environment holding ordinary temperature (-10~+40℃) and ordinary humidity (80%R.H. or under).If left in the atmosphere of high temperature and high humidity for a long time, solderability of the terminals is decreased and performance of the capacitors is lowered.

Suntan Tantalum Capacitor News

Tantalum Capacitor usage is increasing rapidly due to its  far superior performance than Aluminum Electrolytic Capacitors at higher frequencies. Suntan’s TS19 Dipped Tantalum Capacitor, TS20 Chip Tantalum Capacitor and TS20L Low ESR Chip Tantalum Capacitor are made to meet such increasing demand in the market.  Especially our TS19 Dipped type Tantalum Capacitor re very popular in the European and American market because of very competitive price and good quality.   You may contact us to check details with us if interested.

Our TS20 Low ESR Chip Tantalum Capacitor can be used in Radar applications. In a radar system, the first power stage requied to hold up the microwave block must be efficiently filtered from the 28V bus. When looking for the maximum-capacitance/lowest-ESR options for radar, the LOW ESR Chip Tantalum Capacitor could be the best choice  because it has the optimum combination of Capacitorance and  ESR.  You could check our TS20L Chip Tantalum Capacitor spec and advise which items you are interested if you are in the radar system design and production field.

About Film Capacitor

The Tecate line of film capacitors is comprehensive in it’s breadth and depth.  In addition to our vast line-up of catalog film capacitors, Tecate supports custom, application specific requirements as well. 

Film capacitors, as a category,  include any capacitor type made from plastic: polyester, polypropylene, polystyrene, etc. There are at least two types of film capacitors. Film-foil capacitors are constructed of layers (single or multiple) of plastic film dielectric wound alternately with metal foil electrodes. Metallized film capacitors are constructed of film dielectric on which the metal electrode has been previously vapor-deposited.  The layers are wound into a convoluted roll (jelly roll), with electrodes extending beyond the dielectric films.

Film capacitors are designed using a number of different dielectrics. Dielectrics are the insulating materials between the plates of the film capacitor. Materials are chosen for their ability to permit electrostatic attraction and repulsion to take place across the film.  Materials will have the property that energy required to establish an electric field is recoverable in whole or in part, as electric energy. In other words, good dielectric material is a poor conductor of electricity while being an effective supporter of electrostatic fields in film capacitors.  Common dielectrics used in film capacitors include polyester, polycarbonate, polypropylene and polystyrene.