Why Choose us
Customization
We have accumulated extensive experience in providing stable and reliable products and customized services to over 300 agents and 1,500 end customers. Gradually, we have developed into a highly influential enterprise within the industry.
Advanced Production Equipment
We utilize more than 100 sets of cutting-edge domestic and international production equipment that comply with industry process standards, as well as two sets of standardized laboratory equipment.
Complete Product Qualifications
Our product qualifications include ISO, ROHS, REACH, UL, ENEC, and CQC certifications.
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Climatic Category |
40/085/21 |
|
Rated Voltage |
63V, 100V, 250V, 400V, 630V, 1000V |
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Capacitance Range |
0.0010Μf ~0.15μF |
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Capacitance Tolerance |
±5%(J), ±10%(K) |
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Voltage Proof |
1.6UR |
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Insulation resistance |
C≤0.33μF≥3000MΩ (20℃, 1min) C>0.33μF≥5000S (20℃, 1min) |
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Tangent of loss angle |
≤0.008 % (20℃, 1KHZ) |
Stability
CBB21B-box type film capacitors exhibit excellent stability over temperature, frequency, and voltage. This stability makes them ideal for applications requiring precise and consistent capacitance values over a wide range of operating conditions.
Low Dissipation Factor
CBB21B-box type film capacitors typically have low dissipation factors, which means they have low energy losses and are efficient at storing and releasing energy. This property is beneficial in applications where minimizing power losses is critical.
High Insulation Resistance
CBB21B-box type film capacitors offer high insulation resistance, making them suitable for applications requiring high reliability and long-term performance. They are less prone to leakage currents, which can improve the longevity of the capacitor and the overall reliability of the circuit.
Low Dielectric Absorption
CBB21B-box type film capacitors have low dielectric absorption, meaning they can quickly discharge and recharge without retaining significant charge. This property is advantageous in applications requiring fast response times or rapid charge/discharge cycles.
Wide Operating Temperature Range
CBB21B-box type film capacitors can operate effectively over a wide temperature range, making them suitable for use in harsh environments or applications where temperature fluctuations are common.
Self-Healing Properties
Certain types of CBB21B-box type film capacitors, such as metallized polyester and metallized polypropylene capacitors, have self-healing properties. If the dielectric material is punctured or damaged, the capacitor can partially heal itself by forming a new dielectric layer, maintaining its functionality and preventing catastrophic failure.
Materials Used in CBB21B-Box Type Film Capacitor Production
Polyester
Polyester is widely used in the production of film capacitors due to its cost-effectiveness and versatility. It offers a good balance of electrical performance and mechanical stability, making it suitable for a wide range of applications.
Its properties include relatively high dielectric strength, low dissipation factor, and excellent thermal stability, enabling polyester film capacitors to perform reliably in various types of electronic circuits.
Polypropylene
Polypropylene (PP) enhances the performance of film capacitors across various applications, particularly in power electronics and high-frequency environments. It boasts high breakdown strength (up to 865 MV m⁻¹) and energy density (8.2 J cm⁻³), making it a preferred choice for modern capacitor designs. Surface modifications, such as parylene deposition, further improve its energy density by 40 % to 50 %.
Polycarbonate
Polycarbonate (PC) is known for its stability and durability, particularly in applications requiring reliable operation at higher temperatures. Researchers have explored combining PC with nylon to address limitations in traditional biaxially oriented polypropylene (BOPP) capacitors, which are restricted to a temperature rating of 85 °C.
Conductive Plates
Conductive plate materials are critical to the operation of film capacitors. Aluminum or copper foils are typically used for their exceptional electrical conductivity and mechanical properties.
These materials ensure efficient energy storage and discharge while offering flexibility to withstand operational stresses, making them ideal for the structural foundation of film capacitors.
Metalized Film Capacitors
CBB21B-box type film capacitor a compact design with enhanced efficiency. A thin metal layer deposited on the dielectric film contributes to improved electrical performance and effective thermal management. These capacitors are crucial in applications like electric vehicle (EV) motor controllers, where they attenuate ripple currents and support high-temperature operation.
Delivery Information
IShipping Methods
We offer a variety of shipping options, including sea freight, air freight, railway transportation, and international express delivery, to meet the diverse needs of our customers.
Estimated Delivery Time
We will provide you with the estimated delivery time for your order, which will be clearly stated in the formal order to ensure your rights are protected, allowing you to arrange for the receipt of your goods in a timely manner.
Order Tracking
We provide order tracking services, allowing you to stay informed about the current status and expected arrival time of your order. Detailed inspection information and shipping manifests, including photos and videos, are provided to ensure the security of your transactions.
We're well-known as one of the leading cbb21b-box type film capacitor manufacturers in China. If you're going to buy customized cbb21b-box type film capacitor made in China, welcome to get quotation from our factory.
474j 630v Capacitor(0/10)
