Metallized polyester capacitors,also called film capacitors. They are made of out wrapped with mylar tape and ends sealed with epoxy resin. The metal layer is connected to the capacitor’s electrodes, which are made of a thin layer of metal foil. The electrodes are connected to the capacitor’s leads, they are axial leads of tinned wire.
Metallized polyester capacitors are an essential component in electronic circuits.
0.68 uF Metallized Polyester Film 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 10787-1996 |
Climatic catalogue | 40/85/21(From 85°C up to 105°C with derating voltage 1.25%/°C) |
Capacitance versus rated voltage (UR) | 0.001μF-10.0μF/100VDC 0.001μF-10.0μF/250VDC 0.001μF-4.7μF/400VDC 0.001μF-4.7uF/630VDC |
Capacitance tolerance | M = ±20%, K = ±10%, and J = ±5% |
Dissipation factor | C≤1.0uF DF≤0.8% C>1.0uF DF≤1.0% (at 20°C, 1KHz) |
Voltage-proof | 1.6*UR Unit:VDC (5s at 20°C) |
Insulation resistance | C≤0.33µF, IR≥15000MΩ, C>0.33µF, IR*C≥3,000s (1 minute at 20°C and RH≤65%) |
Endurance | 1000 hours with 125% of rated voltage at 85°C. After the test: ΔC/C ≤8%; ΔDF ≤0.30%, IR ≥50% of the specified value (20°C, 1kHz) |
Advantages of Metallized Polyester Capacitors
Metallized polyester capacitors have some advantages compared with the other types of capacitors. Metallized polyester capacitors are relatively cheap and have a long lifespan. They are also highly reliable and can withstand high temperatures and humidity. Metallized polyester capacitors have a low ESR in addition, which means they can deliver high currents without generating a lot of heat.
Overall, advantages of metallized polyester capacitors are including their relatively low capacitance and sensitivity to temperature.
Feature of metallized polyester film capacitors :
1、Wide working temperature range: the general temperature resistance range can reach -40℃~120℃.
2、Large dielectric constant.
3、Good self-healing characteristics.
4、Large volume ratio, that is, the volume can be made smaller, installation does not take up space.
5、Good stability.metallized polyester film capacitors is mainly used in straight separation and coupling, decoupling, filtering, timing, and low pulse circuits.
Structure of metallized polyester film capacitors
The series is made of metalized polyester film with non-inductive structure wound with tinned copper-clad steel wire and flame retardant epoxy resin powder encapsulation.
Application of metallized polyester film capacitors:
1.Filter and noise suppression circuit
2.Pulse, logic and timing circuit
3.DC-blocking, by-passing and signal coupling in general communication equipment
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FAQ
1.Are you a metallized polyester film capacitors manufacturer?
We are, indeed, a factory!
2.Do you provide free samples?
Yes, we do provide complimentary samples.
3.Do you have any new metallized polyester film capacitors products?
Yes, we have new goods available.
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