3.5uF 450V CBB21 Coating Capacitor for Electric Fans

The use of CBB21 coating, a type of metallized polyester film, enhances the durability and reliability of the capacitor. This is especially important in electric fan applications where the capacitor may be exposed to varying environmental conditions.

The 3.5uF 450V CBB21 Coating Capacitor emerges as a vital component in the world of electric fans, contributing to their efficiency, reliability, and overall performance. As we enjoy the cool breeze generated by these ubiquitous household devices, it’s worth recognizing the intricate technology that makes it all possible. Capacitors, with their diverse applications and evolving technology, play a silent yet crucial role in enhancing the functionality of electronic devices that have become integral to our daily lives. The 3.5uF capacitor, with its CBB21 coating, exemplifies the marriage of precision and durability, ensuring that the cool breeze within our homes is not just refreshing but also powered by cutting-edge capacitor technology.

Category Metallized Polypropylene Capacitors

Product Description

3.5uF 450V CBB21 Coating Capacitor for Electric Fans Specifications:

Dielectric	Polypropylene film
Electrodes	Vacuum evaporated metal
Coating	Epoxy resin coating
Leads	Radial leads of tinned wire
Reference standard	IEC 384-16; GB 10190-1988
Climatic catalogue	40/85/21
Capacitance versus rated voltage (UR)	0.01μF-3.3μF100/ 250VDC 0.01μF-3.3μF/400VDC 0.01μF-2.2uF/ 630VDC
Capacitance tolerance	M = ±20%, K = ±10%, and J = ±5%
Dissipation factor	DF≤1.0% (at 20°C, 1KHz)
Voltage-proof	1.6*UR Unit:VDC (5s at 20°C)
Insulation resistance	C≤0.33µF, IR≥30000MΩ, C>0.33µF, IR*C≥5,000s (1 minute at 20°C and RH≤65%)
Endurance	1000 hours with 125% of rated voltage at 85°C. After the test: ΔC/C ≤5%; ΔDF ≤0.40%, IR ≥50% of the specified value (20°C, 1kHz)

The voltage rating specifies the maximum voltage the capacitor can handle without risking failure. A 450V rating ensures the capacitor can operate safely within the voltage parameters of electric fan circuits.The 3.5uF 450V CBB21 Coating Capacitor is coated with CBB21, which is a type of metallized polyester film. This coating provides insulation, protection, and enhances the overall durability and reliability of the capacitor.

The 3.5uF 450V CBB21 Coating Capacitor plays a crucial role in the optimal functioning of electric fans.

1.Starting Mechanism: Electric fans, especially those with induction motors, require an initial surge of electrical energy to start the rotation of the blades. The 3.5uF capacitor serves as a starting capacitor, providing the necessary phase shift in the motor winding to initiate rotation.

2.Phase Shifting: In electric fan motors, the capacitor introduces a phase shift between the current and voltage waveforms. This phase shift is essential for creating a rotating magnetic field within the motor, allowing it to generate torque and achieve smooth and continuous rotation.

3.Running Capacitor: Once the fan motor is in motion, the 3.5uF capacitor transitions into a running capacitor. It continues to provide the necessary phase shift, ensuring the motor operates efficiently and maintains a consistent speed.

4.Power Factor Correction: Capacitors in electric fans contribute to power factor correction, optimizing the use of electrical power and reducing energy consumption. This is particularly important in enhancing the overall efficiency of the fan and minimizing electricity costs.

Except the 3.5uF 450V CBB21 Coating Capacitor finds its primary application in electric fans, there are various other electronic devices and applications due to its versatility extends:

1.Air Conditioners: CBB21 Capacitors with similar specifications play a vital role in air conditioner compressors, contributing to the starting and running mechanisms. They enhance the efficiency of the compressor motor, ensuring optimal cooling performance.

2.Refrigerators: The starting and running capacitors in refrigerators assist in the operation of the compressor, helping maintain a consistent temperature within the appliance.

3.Pumps and Motors: Electric motors in pumps and other household appliances often utilize capacitors for starting and running functions. The 3.5uF capacitor’s specifications make it suitable for various motor-driven applications.

4.Power Tools: CBB21 Capacitors with similar characteristics are found in power tools, where they aid in the efficient operation of electric motors.

The Evolution of Capacitor Technology:

To appreciate the significance of the 3.5uF 450V CBB21 Coating Capacitor, it’s essential to trace the evolution of capacitor technology:

1. Early Capacitors: The earliest capacitors were simple devices with basic constructions, often using materials like glass, wax, or oil. These capacitors had limitations in terms of size, capacitance, and voltage ratings.

2.Introduction of Film Capacitors: The development of film capacitors, including those with metallized coatings, marked a significant advancement. Film capacitors offered improved stability, reliability, and efficiency compared to their predecessors.

3.Advancements in Dielectric Materials: Ongoing research led to advancements in dielectric materials, contributing to the development of capacitors with higher capacitance, lower losses, and enhanced performance.

4.Miniaturization and Surface Mount Technology (SMT): The demand for smaller and more compact electronic devices drove the miniaturization of capacitors. Surface mount technology facilitated the integration of capacitors into densely packed electronic circuits.