Suntan Capacitors Blog

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. 

About Ceramic Capacitor

Ceramic is the dielectric material used in the manufacture of ceramic capacitor.  Dielectrics are the insulating material between the plates of capacitors.  This material is chosen for its ability to permit electrostatic attraction and repulsion to take place across it.  Ceramic is an excellent dielectric material because it is a poor conductor of electricity while being an effective supporter of electrostatic fields.

ceramic capacitors are manufactured using a tape casting process wherein thin layers of conductive electrodes are separated by a dielectric layer, and a kind of multi-layer “sandwich” is formed to create a ceramic capacitor with a very large surface area in a very compact size.  Recently, the combination of nickel electrodes and the ability to cast very thin layers has allowed the capacitance range of ceramic capacitors to exceed more than 100μF in an 1812 package, using X5R dielectric material.  With the ability to stack hundreds of layers to form a single high-density, high-capacitance multilayer ceramic capacitor, new application opportunities, that were previously the sole domain of tantalum capacitors, are now available for ceramic capacitors.  One of the driving forces for the increased capacitance values in ceramic capacitors was the tantalum shortage of 2000.

Prior to the use of nickel electrode systems, Palladium (Pd) and Silver (Ag) were the most common electrode materials.  This precious metal became cost prohibitive when making very high-capacitance, high-layer count ceramic capacitors.  Palladium and silver are still widely used for ceramic capacitors with lower capacitance values.

About Tantalum Capacitor

Tantalum Capacitors are used in electronic devices including portable telephones, pagers, personal computers, and automotive electronics.  When selecting between available tantalum Capacitors, there are a number of key specifications to keep in mind when designing in a tantalum Capacitor.  These  include capacitance value, capacitance tolerance, dissipation factor, leakage current, and equivalent series resistance (ESR).  The designer must also consider the board interface requirements.  Tecate tantalum capacitors are available in radial leaded or surface mount configurations.

Capacitance is a measure of the energy storage ability of a tantalum Capacitor, given as C = K A/D, where A is the area of the electrodes, D is their separation, and K is a function of the dielectric between the electrodes. The formula yields a result in farads (F), but a farad is so large that the most commonly used values are expressed in microfarads (µf = 10-6F). 

The dissipation factor (DF) is the ratio between the resistive and the reactive part of the impedance of the tantalum capacitor submitted to a sinusoidal voltage of specified frequency. It is a measure of the losses in the capacitor.  

Leakage current is measured as the current flowing from one conductor to an adjacent conductor through an insulating layer. The leakage current in tantalum Capacitors is measured after 3 minutes at 25°C, through a 1k resistor connected in series with the capacitor, and with rated voltage applied.

Equivalent series resistance (ESR) represents the extent to which the capacitor acts like a resistor when charging and discharging. This functions via a resistive element within the capacitor model, found in both the AC and DC domains.  The lower the ESR the higher the current carrying ability of the tantalum capacitor.

7mm Ceramic Trimmer Capacitor

7mm Ceramic Trimmer Capacitor Features

1. Wide of capacity ranges
2. Long durability of performance guaranteed by both stables And strong characteristics of capacity against heat humidity and coldness
3. Sturdy mechanical structure against vibration or shock

7mm Ceramic Trimmer Capacitor Specifications

• OPERATING TEMPERATURE RANGE -30°C ~ +85°C
• RATED WORKING VLOTAGE 100V DC
• WITHSTANDING VOLTAGE 500V DC
• INSULATION RESISTANCE 104 MΩ min
• ROTATION TORQUE 40 ~ 200 g.cm
• SOLDERING TEMPERATURE 250 ± 5°C

7mm Ceramic Trimmer Capacitor Pictures

Radial Aluminum Electrolytic Capacitor

Radial Aluminum Electrolytic Capacitor List

• General & Miniature
• 5mm height, Non-Polarized
• 105°C, 5mm height
• 105°C, 7mm height
• 7mm height, Bi-Polar
• General, Super Miniaturized
• Non-Polar
• 105°C, General
• 105°C, Long Life
• 105°C, Low Impedance
• 105°C, Low Impedance, Long Life
• 125°C, 1000 hours
• Low Leakage Current
• For Speaker Network
• For Horizontal Deflection
• For Photo Flash
• 105°C, 2000 hours, Low Leakage
• For Ballast & Save Lamp - 10000 hours
• For Motor Starting
• For Ballast & Save Lamp - 8000 hours
• 85°C 5mm height
• 85°C 7mm height
• For Ballast & Save Lamp - 5000 hours
• For Ballast & Save Lamp - 3000 hours
• High Temperature

Radial Aluminum Electrolytic Capacitor Pictures