Su Suntan Ultra Capacitor Manufacturer

July 7, 2020 Views
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Suntan Technology Company Limited

--All kinds of Capacitors

Do you know the street lamp, automotive automation device, solar energy equipment need the same electronic components to work, which is a high-capacity capacitor with a capacitance value much higher than other capacitors? It is called Super Capacitor, Ultra Capacitor as well.

Here Electric double layer capacitor (EDLCs) with Low Leakage, small size and large capacity, rapid charging advantage:
TS12 Electric Double Layer Capacitor:
TS12S-V Electric Double Layer Capacitor - Serial Structure:

Suntan Metallized Polyester Film Capacitor - Mini Box - TS05

November 13, 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. However, Metallized Polyester Film Capacitor is one of most popular types, therefore, we should  specially introduce it .

Here, we take TS05 as an example, below is some information about it.


  • High reliability.
  • Box type provides the identical outer appearance.


Metallized Polyester Film Capacitor - Mini Box Specifications
Reference Standard GB7332 (IEC 60384-2)
Climatic Category 55/100/56
Rated Temperature 85°C
Operating Temperature Range -55°C~105°C
Rated Voltage 50V/63V, 100V, 250V, 400V, 500V, 630V
Capacitance Range 0.0010μF ~ 1.5μF
Capacitance Tolerance ±5%(J), ±10%(K), ±20%(M)
Voltage Proof Type A: 1.6UR (5s) ; Type B: 1.4UR (5s)

If you want to know more details, please click

Su Suntan 7 Terminal Square Trimming Potentiometers

March 26, 2009 Views
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Suntan Technology Company Limited
---All kinds of Capacitors

7 Terminal Square Trimming Potentiometers Features

  1. (Single Turn/ Cermet/ Industrial/ Sealed)
  2. (7 Terminal Styles)

7 Terminal Square Trimming Potentiometers Parameters download PDF files Download TSR-3323 - 7 Terminal Square Trimming Potentiometers PDF

7 Terminal Square Trimming Potentiometers - Electrical Characteristics
Standard Resistance Range 10Ω - 2MΩ
Resistance Tolerance ±5%, ±10%
Absolute Minimum Resistance ≤1% R or 2Ω
Contact Resistance Variation CRV≤1%or 2Ω
Insulation Resistance R1≥1GΩ(500Vac)
Withstand Voltage 707Vac
Effective Travel 250°


Su Suntan Single Turn Trimming Potentiometers

January 31, 2009 Views
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Suntan Technology Company Limited
---All kinds of Capacitors

Trimming potentiometers
perform a variety of circuit adjustments in all types of electronic equipment. The variety of physical configurations available and the ability to withstand today's manufacturing environment offers the designer flexibility in selecting the best trimmer for the application. Around the world, trimmers are used in virtually every electronic market.

  • Multi-turn Trimming Potentiometers
  • Single-turn Trimming Potentiometers
  • Military Qualified Trimming Potentiometers


Su Suntan What is a Varistor?

January 30, 2009 Views
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Suntan Technology Company Limited
---All kinds of Capacitors

A varistor is a type of resistor with a significantly non-ohmic current-voltage characteristic. The name is a portmanteau of variable resistor*, which is misleading since it is not continuously user-variable like a potentiometer or rheostat, and is not a resistor but in fact a capacitor. Varistors are often used to protect circuits against excessive voltage by acting as a spark gap.

The most common type of varistor is the metal oxide varistor, or MOV. This contains a mass of zinc oxide grains, in a matrix of other metal oxides, sandwiched between two metal plates (the electrodes). The boundary between each grain and its neighbour forms a diode junction, which allows current to flow in only one direction. The mass of randomly oriented grains is electrically equivalent to a network of back-to-back diode pairs, each pair in parallel with many other pairs. When a small or moderate voltage is applied across the electrodes, only a tiny current flows, causes by reverse leakage through the diode junctions. When a large voltage is applied, the diode junctions break down because of the avalanche effect, and a large current flows. The result of this behaviour is a highly nonlinear current-voltage characteristic, in which the MOV has a high resistance at low voltages and a low resistance at high voltages.

If the size of the transient pulse (often measured in joules) is too high, the device may melt, or otherwise be damaged. For example, a nearby lightning strike may permanently damage a varistor.

Important parameters for varistors are response time (how long it takes the varistor to break down), maximum current and a well-defined breakdown voltage. When used in communications lines (such as phone lines used for modems), high capacitance is undesirable since it absorbs high frequency signals, thereby reducing the available bandwidth of the line being protected.