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The CL21 Metalized Polyester Film Capacitor produced by Piner Manufacturer is a classic model of metalized polyester (PET) film DC capacitors. It belongs to the mainstream model of the CL series polyester film capacitors. It adopts a non-inductive winding structure design. With its high cost-effectiveness and wide capacity range, it has become one of the most widely used capacitor types in medium and low-frequency electronic circuits. It is suitable for various scenarios with cost sensitivity and no strict requirements for high-frequency performance. It is a basic electronic component for devices such as consumer electronics and small household appliances.
High cost-effectiveness:
The raw materials and production process are mature, and the cost is lower than that of capacitors of the same specification, making it suitable for large-scale production of electronic devices;
Wide capacity range:
The capacity range is wide, capable of meeting the diverse requirements of medium and low-frequency circuits from picofarads to microfarads;
Good self-healing property:
When the metalized aluminum electrode is locally broken, the metal layer at the fault point will instantly evaporate to form an insulating zone, avoiding the overall failure of the capacitor and improving the reliability of use;
Adaptability to conventional environments:
The performance is stable within the working temperature range, with high insulation resistance, low leakage current, moisture resistance, and shock resistance, suitable for the conventional working environment of civilian electronic devices;
Non-polarity design:
It can be flexibly applied to filtering, coupling, bypass, etc. scenarios in DC and low-frequency AC circuits, with strong installation adaptability;
Performance compatibility:
The loss and high-frequency characteristics are slightly inferior to those of the polypropylene (CBB) series capacitors. The core advantages focus on medium and low-frequency scenarios. It is not recommended for use in high-frequency and high-current circuits.
| Reference standard | GB7332 IEC60384-2:2005 |
| Climatic category | 40/120/21 |
| Rated voltage | 250VDC ~ 630VDC |
| Capacitance range | 0.01uF ~ 10uF |
| Capacitance tolerance | ±5%(J) ±10%(K) ±20%(M) |
| Between terminals Voltage proof | 1.6Un DC (10s) |
| Insulation resistance (at 20°C) |
Between terminals≥9000M ΩCR ≤0.33uF (100vdc 60s) ≥5000s CR>0.33uF (100vdc 60s) |
| Dissipation factor | DF≤0.0080 (1KHz) |
CL21 Film Capacitor Dimension Unit:mm
Note: The above size is for reference only. Customization according to customers’ requirements is available.
Comparison of Polypropylene Membrane Capacitor (CBB) and Polyester Membrane Capacitor (CL21)
1. Volume: Under the same voltage and capacity conditions, the volume of CL21 capacitor is smaller, and the installation space occupied is also smaller.
2. Temperature: CL21 has a higher temperature resistance.
3. High Frequency: Under high-frequency conditions, the stability of CBB22 capacitor is higher than that of CL21 capacitor.
4. Loss: The loss of CBB capacitor is smaller than that of CL capacitor.
5. Application: CL21 is mainly used in low-frequency circuits, such as filtering. CBB22 is more suitable for high-voltage and high-frequency circuits.
Foshan Pin'er Electronics Co., Ltd. is a professional manufacturer of film capacitors that integrates development, design, production, sales and after-sales services. The company has a factory area of over 3, 000 square meters. It specializes in producing CBB21 type, CBB22 type, CL21 type, CBB60 type, CBB61 type, X2 safety standard capacitors, household induction cookers, etc., as well as metallized film capacitors.
The company has strong technical and R&D capabilities. Its products strictly comply with the ISO9001-2015 quality management system certification. The MKPX2 safety standard capacitor series has passed the UL certification in the United States, CUL certification in Canada, VDE certification in Germany, and CQC certification in China. The company's products all meet the latest environmental protection requirements of the EU and comply with the RoHS and REACH standards. It can provide professional and comprehensive "one-stop" services for electronic complete machines in fields such as power supplies, communications, audio and video, automotive electronics, home appliances and digital products, and new energy electronic products.
The company has experienced employees and a professional and efficient management team, ensuring that every aspect from research and development to production meets high standards. Gooder Electronics has always adhered to the principles of "innovation-driven, quality first, service foremost, and win-win cooperation", continuously deepening its focus on the magnetic component field, striving to grow and become a leading enterprise in the industry.
Little Bear, Delmar, Meishel, Dongling Weiyou, Yaxuel, Lianrui, Jiewei, Yingke, Yu Long, Tuohao
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C3 2 -4 81 Xijiao Road, Ronggui Sub-district, Foshan City, 2-4/F, Building C3, Zhongjian Chuangkeyuan, China
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