Plastic Film Capacitors

Do you know the power of capacitors?

In theory, the dielectric can be any nonconductive substance. However, for practical applications, specific materials are used that best suit the capacitor's function. Mica, ceramic, cellulose, porcelain, Mylar, Teflon and even air are some of the nonconductive materials used. The dielectric dictates what kind of capacitor it is and for what it is best suited. Depending on the size and type of dielectric, some capacitors are better for high frequency uses, while some are better for high voltage applications. Capacitors can be manufactured to serve any purpose, from the smallest plastic capacitor in your calculator, to an ultra capacitor that can power a commuter bus. NASA uses glass capacitors to help wake up the space shuttle's circuitry and help deploy space probes. Here are some of the various types of capacitors and how they are used.

• Air - Often used in radio tuning circuits
• Mylar - Most commonly used for timer circuits like clocks, alarms and counters
• Glass - Good for high voltage applications
• Ceramic - Used for high frequency purposes like antennas, X-ray and MRI machines
• Super capacitor - Powers electric and hybrid cars

Our Suntan capacitors (St Trademark) have the good quality Mylar capacitors, the Mylar capacitor specifications for your kind short view.

Mylar Capacitor Specifications

• Operating Temperature: -40°C to + 85°C
• Rated Voltage: dc 100V,250V,400V,630V,1000V,1200V       
• Capacitance Range: 0.00027 to 0.47μf
• Capacitance Tolerance: ±5%, ±10%, ±20%
• Insulation Resistance: 0.1μf ≤30,000 mω min, >0.1μf >15000 mω
• Dissipation Factor: ≤0.1 (at 1KHz)
• Dielectric Strength: 200% of rated voltage for 5 Sec.

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. 

Polypropylene Film Capacitor

Polypropylene Film Capacitor PPI Features

1. Comparatively small size saves space of print circuit board.
2. Temperature dependence indicates characteristic of negative.
3. Dissipation Factor is normally low and temperature dependence of capacitance is linear.

Polypropylene Film Capacitor PPI Specifications

• MPERATURE -40°C TO +85°C
• RAGED VOLTAGE DC 100V, 250V, 400V, 630V
• CAPACITANCE RANGE 0.00047 TO 0.18Mfd
• CAPACITANCE TOLERANCE ±5%, ±10%
• INSULATION RESISTANCE 50,000 MΩmin.
• DISSIPATION FACTOR ≤0.001 for C≤0.068Mfd, ≤0.002 for C>0.068 Mfd (AT 1KHz)
• DIELECTRIC STRENGTH 250% of rated voltage for 5sec.

Metallized Polyester Film Capacitor Pictures

Metallized Polyester Film Capacitor

Metallized Polyester Film Capacitor Features

1. High reliable with its Self-Healing performance.
2. Coated with epoxy resin for superior heat resistance, humidity resistance and solvent resistance.
3. Good reputation in use with filtering, DC blocking coupling and general communication equipment

Metallized Polyester Film Capacitor Specifications

• OPERATING TEMPERATURE -40°C TO + 85°C
• RATED VOLTAGE DC 100V, 250V, 400V, 630V
• CAPACITANCE RANGE 0.01 TO 6.8μF
• CAPACITANCE TOLERANCE ±5%, ±10%, ±20%
• INSULATION RESISTANCE C＜0.33μF R≥15,000MΩ, C≥0.33μF RC≥5.000MΩ Mfd
• DISSIPATION FACTOR ≤0.01 (AT 1KHZ)
• DIELECTRIC STRENGTH 150% of rated voltage for 5sec.

Metallized Polyester Film Capacitor Pictures

Motor Starting Capacitor

Motor Starting Capacitor Features

1. High safey. High reliability.
2. High I.R. (insulation resistance) small size.
3. Low D.F. (dissipation factor), lower temperature rise.
4. Durability and characteristics of frequency, etc..

Motor Starting Capacitor Specifications

• CAPACITANCE TOLERANCE ±5%, +10%~-5%, ±10%
• RATED VOLTAGE 200~600VAC or 250~1500VDC
• DISSIPATION FACTOR Below 0.3% or 0.1%
• INSULATION RESISTANCE Above 2000MΩ

Motor Starting Capacitor Pictures

Plastic Film Capacitor - Suntan offer Plastic Film Capacitor

Suntan is a Hong Kong based manufacturer of Plastic Film Capacitor. Range includes Green Polyester Film Capacitor, Metallized Polyester Film Capacitor, Mini BOX metallized Film Capacitor, X2 Capacitor, Metallized Polyester Film Capacitor and Polystyrene Film Capacitor etc. Please refer to below product list of Plastic Film Capacitor. Or you can visit our website www.capacitors.hk for more product details :

Plastic Film Capacitors List

• Polyester Film Capacitor - PEI - (Mylar)
• Metallized Polyester Film Capacitor
• Metallized Polyester Film Capacitor - AC - MFA
• Metallized Polyester Film Capacitor - Box - MEC
• Miniature Size Metallized Polyester Film Capacitor
• Miniature Size Metallized Polyester Film Capacitor - NEW
• Metallized Polyester Film Capacitor - Axial - Cycloidal
• Metallized Polyester Film Capacitor - Axial - Oval
• Metallized Polypropylene Film Capacitor - Axial - Cycloidal
• Metallized Polypropylene Film Capacitor - Axial - Oval
• Metallized Polyester Film Capacitor - Mini Box
• Metallized Polyethylene Naphtalate Film Capacitor - Stacked SMD
• Metallized Polyhenylene Sulfide Film Capacitor - Stacked SMD
• Metallized Polyester Film Capacitor - Stacked & Uncoated
• Metallized Polyester Film Capacitor - Stacked
• Polypropylene Film Capacitor - PPI
• Metallized Polypropylene Film Capacitor - MPP
• Metallized Polypropylene Film Capacitor - X2
• Series Polypropylene Film Capacitor - PPS
• Box-type Double Sided Metallized Polypropylene Film Capacitor
• Polystyrene Film Capacitor - PSA & PSR
• Motor Starting Capacitor

Plastic Film Capacitors Pictures

Polyester Film Capacitors

This capacitor uses thin polyester film as the dielectric.
They are not high tolerance, but they are cheap and handy. Their tolerance is about ±5% to ±10%.

Polystyrene Film Capacitors

In these devices, polystyrene film capacitors is used as the dielectric. This type of capacitor is not for use in high frequency circuits, because they are constructed like a coil inside. They are used well in filter circuits or timing circuits which run at several hundred KHz or less, Above about the Polystyrene Film Capacitors information content.

Film Capacitors

Film includes a variety of polymers, such as polyester, polycarbonate, Teflon, polypropylene, and polystyrene.  Traditional film capacitors were only available in modest sizes, <10 uF.  In recent years, film capacitors have sought to leverage their superior longevity compared to electrolytics, to move into some applications that call for much larger parts, even to thousands of uF.  Film capacitors come in two broad categories, film-foil, and metallized film.  Film-foil capacitors are made of alternating layers of plastic film and metal foil, while metallized film capacitors have the metal vacuum deposited directly on the film.  In general, film-foil is better at handling high current, while metallized film caps are much better at self-healing.  Various hybrid types can also be found, Above about the Film Capacitors information content.