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Polypropylene Film Capacitor Suppliers
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CBB21(22) series Metallized Polypropylene Film Capacitor
Read MoreFeatures： Metallized polypropylene film The low loss at high frequency Small inherent temperature rise Flame retardant epoxy resin powder coating (UL94/V-0)
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CBB62 series Metallized Polypropylene Film AC Capacitor
Read MoreFeatures: This is specifically designed for applications in serial with the 100~300Vac main, i.e.: capacitive divider, for example, energy meter, LED driver, etc. Metallized polypropylene structure Good self-healing property, can withstand surge voltage stressing Long stability of capacitance under ...
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CBB81 series High-Voltage Metallized Polypropylene Film/Foil Capacitor
Read MoreFeatures: Metalized polypropylene film/ foil, wound construction Low loss and small inherent temperature rise Negative temperature coefficient of capacitance Flame retardant epoxy resin powder coating (UL94/V-0)
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CBB28 series High-Voltage Metallized Polypropylene Film/Foil Capacitor (Sub-Miniature)
Read MoreFeatures: Metalized polypropylene film/ foil, wound construction Low loss and small inherent temperature rise Negative temperature coefficient of capacitance Flame retardant epoxy resin powder coating (UL94/V-0)
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CBB20 series Metallized Polypropylene Film Capacitor (Axial-Type)
Read MoreFeatures： Metallized polypropylene film, Outstanding self-healing property Axial leaded, small size, light weight Wrapped with polyester tape and filled with flame-retardant resin (UL94 V-0)
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MKP21 series Metallized Polypropylene Film Capacitor (Box-Type)
Read MoreFeatures： Metalized polypropylene film The low loss at high frequency Small inherent temperature rise Plastic case (UL94 V-0), flame retardant epoxy resin sealing
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MKP62 series Metallized Polypropylene Film AC Capacitor (Box-Type)
Read MoreFeatures: Metallized polypropylene Good self-healing properties, withstanding overvoltage stressing Long stability of capacitance Good properties in a damp environment Outstanding active and passive flame-resistant abilities
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MMKP82 series Double-Sided Metallized Polypropylene Film Capacitor (Box-Type)
Read MoreFeatures: Double-sided metalized electrode, polypropylene film dielectric Low loss and small inherent temperature rise Negative temperature coefficient of capacitance Outstanding flame-resistant abilities
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CBB13 Polypopylene Film/Foil Capacitor (Non-Inductive)
Read MoreFeatures： Film/foil, non-inductive wound type, dipped Outstanding frequency and temperature characteristics Very small loss even at high frequency Flame retardant epoxy resin powder coating (UL94/V-0)
ABOUT US
Focused on Electronic Components Manufacturing for 20 Years.
Walson Electronics was established in 2001, with more than 20 years of experience in R&D, manufacturing, sale and service of film capacitors. We are Custom Polypropylene Film Capacitor Suppliers and Custom CBB Film Capacitor Manufacturers.
We always adhere to the cooperation of advanced automation and industrialization. the company continues to introduce domestic and foreign outstanding production equipment, while self-developed production management software, enterprise collaborative management to scientific and efficient operation, has achieved 1 billion/annual production capacity breakthrough, and maintains an orderly rise.
Walson Electronics products have covered more industries, including new energy and power industry, Photovoltaic inverters, LED lighting, household appliances and various power sources and other industries.
Adhering to the concept of innovative technology, honest service and professional quality, Walson Electronics pushes forward capacitor products continuously and is sure to become the industry pioneer with innovative advantages.
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Chairman - Zhenqiu An
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VP - Andrew An
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Salon at Walson
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Wall of Walson Honors
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Production Centre
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WALSON
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Headquarter Office
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Customer Service Team
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Product Design
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Boardroom at Walson
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News
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In today's digital era, the demand for electronic products continues to grow, and the demand for high performance, thinn...
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With the increasing global demand for renewable energy and the reduction of traditional fossil energy, the development o...
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Industry Knowledge
How does the dielectric constant of polypropylene film capacitors influence their performance and suitability for different electronic circuits and systems?
The dielectric constant of polypropylene film capacitors plays a crucial role in determining their performance and suitability for different electronic circuits and systems.
Capacitance Value: The dielectric constant directly influences the capacitance value of the capacitor. Polypropylene film capacitors typically have a relatively high dielectric constant compared to other capacitor types, which allows them to achieve higher capacitance values in smaller physical sizes. This makes them suitable for applications where space constraints are a concern.
Frequency Response: The dielectric constant affects the frequency response of the capacitor. Polypropylene film capacitors typically have a stable dielectric constant over a wide frequency range, making them suitable for applications requiring stable capacitance values across different frequency bands. This makes them ideal for use in filter circuits, resonant circuits, and high-frequency applications.
Voltage Stability: The dielectric constant also influences the voltage stability of the capacitor. Polypropylene film capacitors exhibit low dielectric absorption and high breakdown voltage characteristics, allowing them to maintain stable capacitance values even under high voltage conditions. This makes them suitable for use in high-voltage applications such as power supplies, motor drives, and inverters.
Temperature Stability: The dielectric constant of polypropylene film capacitors remains relatively stable over a wide temperature range. This temperature stability ensures consistent performance of the capacitor across different operating temperatures, making them suitable for use in harsh environmental conditions and temperature-sensitive applications.
Capacitance Value: The dielectric constant directly influences the capacitance value of the capacitor. Polypropylene film capacitors typically have a relatively high dielectric constant compared to other capacitor types, which allows them to achieve higher capacitance values in smaller physical sizes. This makes them suitable for applications where space constraints are a concern.
Frequency Response: The dielectric constant affects the frequency response of the capacitor. Polypropylene film capacitors typically have a stable dielectric constant over a wide frequency range, making them suitable for applications requiring stable capacitance values across different frequency bands. This makes them ideal for use in filter circuits, resonant circuits, and high-frequency applications.
Voltage Stability: The dielectric constant also influences the voltage stability of the capacitor. Polypropylene film capacitors exhibit low dielectric absorption and high breakdown voltage characteristics, allowing them to maintain stable capacitance values even under high voltage conditions. This makes them suitable for use in high-voltage applications such as power supplies, motor drives, and inverters.
Temperature Stability: The dielectric constant of polypropylene film capacitors remains relatively stable over a wide temperature range. This temperature stability ensures consistent performance of the capacitor across different operating temperatures, making them suitable for use in harsh environmental conditions and temperature-sensitive applications.
What measures are taken during the manufacturing of polypropylene film capacitors to ensure high insulation resistance and low dielectric absorption characteristics?
During the manufacturing of polypropylene film capacitors, several measures are taken to ensure high insulation resistance and low dielectric absorption characteristics:
Material Selection: High-quality polypropylene film is chosen as the dielectric material due to its excellent electrical properties, including high insulation resistance and low dielectric absorption. The film is carefully selected to meet stringent specifications for thickness, purity, and uniformity.
Metallization Process: Metallization of the polypropylene film is performed using high-purity metal electrodes to ensure good contact and adhesion between the metal and dielectric layers. This metallization process is critical for achieving low ESR (Equivalent Series Resistance) and high insulation resistance.
Winding and Stacking: The polypropylene film is wound or stacked with the metal electrodes to form the capacitor's construction. Special attention is paid to maintaining uniform tension and alignment during the winding or stacking process to minimize defects and ensure consistent electrical properties throughout the capacitor.
Impregnation and Encapsulation: Some polypropylene film capacitors undergo impregnation with a dielectric fluid or encapsulation with a protective material to enhance insulation resistance and minimize moisture absorption. This impregnation or encapsulation process helps to seal the capacitor and prevent moisture ingress, which can degrade insulation resistance over time.
Material Selection: High-quality polypropylene film is chosen as the dielectric material due to its excellent electrical properties, including high insulation resistance and low dielectric absorption. The film is carefully selected to meet stringent specifications for thickness, purity, and uniformity.
Metallization Process: Metallization of the polypropylene film is performed using high-purity metal electrodes to ensure good contact and adhesion between the metal and dielectric layers. This metallization process is critical for achieving low ESR (Equivalent Series Resistance) and high insulation resistance.
Winding and Stacking: The polypropylene film is wound or stacked with the metal electrodes to form the capacitor's construction. Special attention is paid to maintaining uniform tension and alignment during the winding or stacking process to minimize defects and ensure consistent electrical properties throughout the capacitor.
Impregnation and Encapsulation: Some polypropylene film capacitors undergo impregnation with a dielectric fluid or encapsulation with a protective material to enhance insulation resistance and minimize moisture absorption. This impregnation or encapsulation process helps to seal the capacitor and prevent moisture ingress, which can degrade insulation resistance over time.
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- Address : No. 22, Xingye Road, Changjing Town, Jiangyin, Wuxi City, Jiangsu Province
- Zip code : 214104
- Phone : +86 - 138 1203 1188
- Tel : +86 - 0510 - 88719928 - 805
- Fax : +86 - 0510 - 88719928
- Email : [email protected] / [email protected]
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