Weidi Industrial focuses on the production of film capacitors, polyester film capacitors, polypropylene film capacitors, chip Y capacitors, ceramic capacitors, and varistors. It has a 10,000 square meter production base, a 200+ person production team, and 200+ production equipment, supporting non-standard customization of products. Today, let's follow the film capacitor manufacturers to learn about how to look at the parameters of capacitor products. To correctly understand and select capacitor products, you need to understand and pay attention to the following main parameters:
1. Capacitance value (capacitance): Capacitance value is one of the most important parameters of capacitors, usually expressed in farads (F). It indicates the amount of charge that a capacitor can store. The capacitance value determines the role of the capacitor in the circuit, so you need to make sure that the capacitance value of the selected capacitor matches the requirements of the circuit.

2. Rated voltage: The rated voltage is the maximum voltage that the capacitor can withstand. When selecting a capacitor, make sure that the rated voltage is greater than or equal to the maximum operating voltage in the circuit to prevent damage or failure of the capacitor.

3. Temperature coefficient: The temperature coefficient indicates the degree to which the capacitance value changes with temperature. It is usually expressed in ppm/°C (parts per million per degree Celsius). A lower temperature coefficient means less variation in capacitance value, which is important for applications that require stability.
4. Capacitor Type: There are many types of capacitors, including ceramic capacitors, aluminum electrolytic capacitors, plastic capacitors, etc. Different types of capacitors differ in capacitance value, voltage characteristics, temperature coefficient, and stability, so the right type needs to be selected according to the specific application.
5. Tolerance: Tolerance indicates the allowable deviation range between the actual capacitance value of the capacitor and the nominal value. For example, a 10µF capacitor has a tolerance of ±10%, which means that its actual capacitance value can be between 9µF and 11µF. Lower tolerances generally mean more precise capacitance values.
6. Operating Frequency: Different capacitor types have different responses to operating frequencies. Some capacitors are suitable for high-frequency applications, while others are suitable for low-frequency applications. Make sure the selected capacitor matches the operating frequency of the circuit.
7. Dissipation Factor (ESR): Dissipation factor indicates the energy loss inside the capacitor. A lower dissipation factor means that the capacitor introduces less energy loss in the circuit, which is very important for some high-performance applications.
8. Size and Packaging: The size and packaging style of the capacitor are also key parameters, especially for specific applications and installation requirements. Capacitors of different sizes and packaging types are suitable for different space constraints and circuit designs.
9. Lifespan: Electrolytic capacitors usually have a lifespan parameter, which refers to the life expectancy of the capacitor under specific conditions. Choose capacitors with sufficient lifespan to ensure long-term reliability.
10. Price: Finally, it is also an important factor to consider the cost of the capacitor. The prices of capacitors of different types and specifications vary, so you need to make a choice based on your budget requirements.
Considering the above parameters comprehensively, you can better understand the performance and suitability of the capacitor to select the capacitor product suitable for your specific application.