4.7uF Coating Polyester Film Capacitor

The Manufacturing Process of  Polyester Film Capacitors 

The manufacturing process of polyester film capacitors involves several steps.

Firstly, the polyester film is coated with a conductive material, such as aluminum or zinc, to form the electrodes.

The coated film is then wound into a cylindrical shape and encapsulated in a plastic or metal casing.

The casing provides protection to the capacitor and ensures its stability.

Finally, the leads are attached to the electrodes, allowing for easy integration into electronic circuits.

Factors to Consider When Selecting Polyester Film Capacitors

When selecting polyester film capacitors for specific applications, some factors should be considered.

1. The capacitance value should be chosen based on the desired circuit requirements.

2. The voltage rating should be selected to ensure that the capacitor can withstand the maximum voltage in the circuit.

3. Other factors to consider include the operating temperature range, tolerance, and size of the capacitor.

Specifications 

Dielectric: Polyester film

Electrodes: Vacuum evaporated metal

Coating: Epoxy resin coating

Leads: Radial leads of tinned wire

Reference Standard: IEC 384-2 grade 1; SJ/T 10877-1996

Climatic Catalogue: 40/85/21(From 85°C up to 105°C with derating volatge 1.25%/°C )

Capacitance Versus: 0.01uF-25uF/100VDC;  0.01uF-18uF/250VDC

Rated Voltage(UR):  0.01uF-6.8uF/400VDC;  0.01uF-2.2uF/630VDC;  

Polyester Film Capacitor

Polyester film capacitors are essential components in electronic devices and circuits. Polyester film capacitors’  excellent electrical properties, reliability, and wide range of applications make them a popular choice among engineers and designers. Whether it is for power supply circuits, audio equipment, or timing circuits, polyester film capacitors provide the necessary capacitance stability and performance. By understanding the features, manufacturing process, and factors to consider when selecting these capacitors, engineers can make informed decisions for their specific applications.