Film Capacitor

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

Suntan High Precision Polystyrene Film Capacitor

Suntan TS10 is one kind of High Precision Polystyrene Film Capacitor,it has radial and axial types,it can runs with low dissipation factor and high insulation resistance,high stability of capacitance and DF versus temperature & frequency.Some high precision of capacitance is also available.

Suntan produce Axial type Film Capacitor

We have 4 types of Axial Film Capacitors, they are differ with different material and different body style. We have Metallized Polyester Film Capacitor with Cycloidal & Oval body style and Metallized Polypropylene Film Capacitor with Cycloidal & Oval body style also. The temperature es can up to 105'C at most. They are mainly used in different instruments, DC & AC circuit of the household equipment and the fractional frequency circuit of acoustics system.