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Polyester film capacitors are passive electronic components that store electrical energy in an electric field. They are made from a thin film of polyester material, which acts as the dielectric, sandwiched between two metal electrodes. This construction provides excellent stability, low dielectric absorption, and a wide temperature range, making them suitable for various applications in electronic circuits.
| Capacitance range | 1 nF to 100 µF |
| Voltage rating | 50 V to 600 V |
| Temperature range | -40°C to +85°C |
| Tolerance | ±5%, ±10%, ±20% |
| Dielectric strength | 1.5 to 2.5 times the rated voltage |
| Lead type | Radial or axial leads |
When selecting polyester film capacitors, consider the capacitance value, voltage rating, and tolerance that suit your application requirements. Additionally, check for the temperature range and dielectric strength to ensure reliability in your specific environment. It is also important to specify the lead type and quantity when requesting a quote to ensure compatibility with your circuit design.
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They typically have a long lifespan, often exceeding 100,000 hours under normal operating conditions.
Yes, they are suitable for high-frequency applications due to their low equivalent series resistance (ESR).
No, polyester film capacitors are non-polarized, allowing for flexible circuit design.
They offer stability, low losses, and good insulation resistance, making them reliable for various applications.
The capacitance value should match the requirements of your circuit, often specified in the design documentation.
Look for certifications such as UL, CE, or RoHS compliance to ensure quality and safety.