Suntan RoHS2 Compliance Declaration

May 27, 2013 Views
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Suntan Technology Company Limited
---All Kinds of Capacitors

As you know, since Jan. 1st 2013 we have an updating of ROHS regulation as for new directive 2011/65/EU of the European Parliament and of the Council of 8 June 2011 (RoHS Recast). 

By now almost all of our parts are made in this RoHS2 compliance.

Following we list the product series which we meet RoHS2 so that all the customers can easily check it.

Plastic Film Capacitors: TS01,TS02,TS02B,TS03,TS04,TS05(S),TS05N,TS06,TS07,TS07B,TS08,TS08S,TS09,TS10 
Ceramic Capacitors : TS15,TS16,TS17,TS18(H),TS22
SMD Aluminum Electrolytic capacitors : TS13C series
Tantalum Capacitors : TS19,TS20 (Black & Yellow)
Ceramic Trimmer Capacitor: TSC3S
Trimming Potentiometers
Varistor (Dipped & SMD)
Crystal
Diode: M7, LL4148
Gold CapacitorTS12

For other series which you can not find above, please specially go to our sales to check more information or send request sales@suntan.com.hk

Suntan Website - Portuguese Version

May 23, 2013 Views
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Suntan Technology Company Limited
---All Kinds of Capacitors

To well introduce our products and develop more customers in Brazil market, now we SUNTAN website has another language - Portuguese. Please visit www.suntan.com.hk and  find a Brazil national flag at the right top, see below picture, click it and you will find all our products information in Portuguese, including all kinds of Capacitors, Varistor, Trimming Potentiometer, Switch, Diodes etc.. 

Certainly, no need so trouble, you can also directly click the following link for more information. Welcome to check our line card and send inquiries to us. Thanks!

http://www.suntan.com.hk/Portuguese/index.html

Suntan Plans to Customize Product Catalogues for Customers

May 20, 2013 Views
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Suntan Technology Company Limited
---All Kinds of Capacitors

In order to promote and elevate reputation, popularity and product knowledge, we plan to customzie our product catalogues / poster for customers. Your company logo and contact information can be put into the catalogs. We can discuss about the quantity and your idea to meet your demand. Now there is an example of bridge Rectifie catalogue.

http://www.suntan.com.hk/about/catalogs.html

http://www.capacitors.hk/catalogs.html

Welcome to send us email for checking.

Suntan Presents the Last Five Plastic Film Capacitors

May 13, 2013 Views
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Suntan Technology Company Limited
---All Kinds of Capacitors

In the last blog, we describesd four types of plastic film capacitaors of medium, application and disadvantage. Suntan presents the last five plastic film capacitors for our customers today.

Capacitor type

Dielectric used

Features/applications

Disadvantages

Polypropylene Plastic Film Capacitors

Polypropylene

Has become the most popular capacitor dielectric[citation needed]. Extremely low dissipation factor, higher dielectric strength than polycarbonate and polyester films, low moisture absorption, and high insulation resistance. May use plates of foil, metalized film, or a combination. Film is compatible with self-healing technology to improve reliability. Usable in high frequency applications due to very low dielectric losses. Larger value and higher voltage types from 1 to 100μF at up to 440V AC are used as run capacitors in some types of single phase electric motors.

More susceptible to damage from transient over-voltages or voltage reversals than oil-impregnated Kraft paper for pulsed power energy discharge applications.

Polysulphone Plastic Film Capacitors

Polysulfone

Similar to polycarbonate. Can withstand full voltage at comparatively higher temperatures. Moisture pick-up is typically 0.2%, limiting its stability.

Very limited availability and higher cost

PTFE Fluorocarbon (TEFLON) Film Capacitors

Polytetra- fluoroethylene

Lowest loss solid dielectric. Operating temperatures up to 250°C, extremely high insulation resistance, and good stability. Used in stringent,

Large size (due to low dielectric constant), and higher cost than other film capacitors.

Polyamide Plastic Film Capacitors

Polyamide

Operating temperatures of up to 200°C. High insulation resistance, good stability and low dissipation factor.

Large size and high cost.

Metalized Plastic Film Capacitors

Polyester or Polycarbonate

Reliable and significantly smaller in size. Thin metalization can be used to advantage by making capacitors "self healing".

Thin plates limit maximum current carrying capability.


Suntan Introduces Four Kinds of Plastic Film Capacitors

May 10, 2013 Views
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Suntan Technology Company Limited
---All Kinds of Capacitors

Since 1978, Suntan Technology Company Limited started in selling all kinds of capacitors from our headquarters in Hong Kong. And the capacitor can be divided into nine types of PET film capacitor, Kapton Capacitor, Polystyrene Capacitor, Polycarbonate Plastic Film Capacitor. But very few people know their respective media, features and shortcoming. So Suntan introduces four kinds of different plastic film capacitor to our customers.

Capacitor type Dielectric used Features/applications Disadvantages
PET film Capacitor Polyester film Smaller in size when compared to paper or polypropylene capacitors of comparable specifications. May use plates of foil, metalized film, or a combination. PET film capacitors have almost completely replaced paper capacitors for most DC electronic applications. Operating voltages up to 60,000VDC and operating temperatures up to 125°C. Low moisture absorption. Temperature stability is poorer than paper capacitors. Usable at low (AC power) frequencies, but inappropriate for RF applications due to excessive dielectric heating.
Kapton Capacitor Kapton polyimide film Similar to PET film, but significantly higher operating temperature (up to 250°C). Higher cost than PET. Temperature stability is poorer than paper capacitors. Usable at low (AC power) frequencies, but inappropriate for RF applications due to excessive dielectric heating.
Polystyrene Capacitor Polystyrene Excellent general purpose plastic film capacitor. Excellent stability, low moisture pick-up and a slightly negative temperature coefficient that can be used to match the positive temperature co-efficient of other components. Ideal for low power RF and precision analog applications Maximum operating temperature is limited to about +85°C. Comparatively bigger in size.
Polycarbonate Plastic Film Capacitor Polycarbonate Superior insulation resistance, dissipation factor, and dielectric absorption versus polystyrene capacitors. Moisture pick-up is less, with about +/- 80 ppm temperature co-efficient. Can use full operating voltage across entire temperature range (-55°C to 125°C) Maximum operating temperature limited to about 125°C.

Suntan Introduces Capacitor's Current , Voltage and Energy

May 8, 2013 Views
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Suntan Technology Company Limited
---All Kinds of Capacitors

Dear customers, if you have been concerned about our blog, you will find that in the recent days, Suntan's blog described a series of  knowledge about capacitor. By doing this, not only in order to better serve our customers and to enhance custmoer understanding of capacitor, but also we are a company with decades of  producing capacitors, which have the ability and obligation to help our clients to know more about capacitor. Today, Suntan introduces the knowledge point about capacitor --- capacitor's current and voltage, as well as the energy of capacitor.

Capacitor's current

The capacitor's momentary current ic(t) is equal to the capacitance of the capacitor,

times the derivative of the momentary capacitor's voltage vc(t):

i_c(t)=C\frac{dv_c(t)}{dt}

Capacitor's voltage

The capacitor's momentary voltage vc(t) is equal to the initial voltage of the capacitor,

plus 1/C times the integral of the momentary capacitor's current ic(t) over time t:

v_c(t)=v_c(0)+\frac{1}{C}\int_{0}^{t}i_c(\tau)d\tau

Energy of capacitor

The capacitor's stored energy EC in joules (J) is equal to the capacitance C in farad (F)

times the square capacitor's voltage VC in volts (V) divided by 2:

EC = C × VC 2 / 2

Suntan Show the Schematic Diagram of Series Capacitor and Shunt Capacitor

May 6, 2013 Views
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Suntan Technology Company Limited
---All Kinds of Capacitors 

As we all know, Suntan is a Hong Kong based manufacturer of Trimming Potentiometers, Capacitors, Varistors, the capacitor is its main product. The capacitor by category, can be divided into plastic film capacitors, aluminum capacitors, gold Capacitors, tantalum capacitors, etc. If according to the circuit diagram to points, can be divided into series capacitor and shunt capacitor. Therfore, Suntan shows these to our customers visa blow the schematic diagram.

Capacitors in series

 

  

The total capacitance of capacitors in series, C1,C2,C3,.. :

\frac{1}{C_{Total}}=\frac{1}{C_{1}}+\frac{1}{C_{2}}+\frac{1}{C_{3}}+...
 

Capacitors in parallel

The total capacitance of capacitors in parallel, C1,C2,C3,.. :

CTotal = C1+C2+C3+...

Suntan Provides Some Common Capacitor Symbols for Customer Reference

May 3, 2013 Views
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Suntan Technology Company Limited
---All Kinds of Capacitors

In our previous blog, Suntan tell our customers the working principle of capacitor. I believe you have a certain understanding after reading it. But when the manual comes with a number of capacitor symbols, you will feel these strange ,don't know what it means? Suntan lists some capacitor symbols visa blow table:

 

Capacitor Symbols

Capacitor Capacitor is used to store electric charge. It acts as short circuit with AC and open circuit with DC.
capacitor symbol Capacitor
polarized capacitor symbol Polarized Capacitor Electrolytic capacitor
polarized capacitor symbol Polarized Capacitor Electrolytic capacitor
variable capacitor symbol Variable Capacitor Adjustable capacitance


Suntan Tell Our Customers What is Capacitors?

April 29, 2013 Views
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Suntan Technology Company Limited
---All Kinds of Capacitors

Since 1978, Suntan Technology Company Limited started in selling all kinds of capacitors from our headquarters in Hong Kong. Capacitors may not be strange to our custometrs, but how does it work? Presumably not many people know it, so here we will tell you.

Capacitor is an electronic component that stores electric charge. The capacitor is made of 2 close conductors (usually plates) that are separated by a dielectric material. The plates accumulate electric charge when connected to power source. One plate accumulates positive charge and the other plate accumulates negative charge. The capacitance is the amount of electric charge that is stored in the capacitor at voltage of 1 Volt. The capacitance is measured in units of Farad (F). The capacitor disconnects current in direct current (DC) circuits and short circuit in alternating current (AC) circuits.

Suntan Great Success at FIEE 2013

April 23, 2013 Views
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Suntan Technology Company Limited
---All Kinds of Capacitors

FIEE 2013 which hold in Brazil from April 1th ~ 5th, 2013, Suntan company already finished the show at there with our Booth No.G120.

During this show, we invited our brazil customer to help us to negotiate with local customer. We are pleased that our brand " Suntan" gains high reputation in Brazil market with high quality and superior price.

Currently our Suntan products have many certificates, like UL, VDE, ENEC,SGS, RoHS 2.0,  most products can meet REACH standard, we believe it can help both us and customers to win more business chance, we warmly welcome you to check our offer, we will give our best price, shortest lead time and highest quality to you!

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