Cbb20 Polypropylene Safety Capacitor

Cbb20 Polypropylene Safety Capacitor are available with different values of general and value ratings. They are used for DC pulsation, pulse, and AC voltage reduction in instruments, meters, TV sets and household electrical appliances. We are looking for bulk enquiries for Cbb20 Polypropylene Safety Capacitor, MPT Series tubular capacitors etc.

Category Polypropylene capacitors

Product Description

Trends in Cbb20 Polypropylene Safety Capacitor

The usual method of making film capacitors is to use a metal foil such as aluminum as an electrode and a plastic film to overlap and then roll them together. Among all plastic film capacitors, polypropylene capacitors have the most significant characteristics, and of course the price of such capacitors is relatively high. However, in recent years, in order to improve the quality, the parts and materials used have become more and more advanced, and the price is not the most important factor to consider, so in recent years, the frequency and quantity of PP capacitors have become higher and higher.

Due to the electrical impedance of a capacitor decreasing with frequency, they are an efficient component for reducing interference because at higher frequencies, they short circuit electrical noise and transients between the lines or to ground. As a result, they shield machinery and equipment from electromagnetic and radio frequency interference as well as transients in across-the-line (X capacitors) and line-to-ground (Y capacitors) connections. This includes motors, inverters, electronic ballasts, solid-state relay snubbers, and spark quenchers. Interference that is symmetrical, balanced, or differential can be successfully absorbed by X capacitors. To counteract asymmetrical, unbalanced, or common-mode interference, Y capacitors are linked in a line bypass between the line phase and a point of zero potential.

We know that Cbb20 polypropylene safety capacitor have a great advantage, that is, they have self-healing properties, that is, if there is a problem inside the capacitor, it can achieve self-healing and can be used normally, but film capacitors also have a disadvantage, that is, film capacitors The capacity will be reduced, especially for the resistance-capacitance step-down circuit. If the quality of the film capacitor is not good, the capacity attenuation will be very serious.

Specifications of Cbb20 polypropylene safety capacitor:

Dielectric	Polypropylene film
Electrodes	Vacuum evaporated metal
Coating	Out wrapped with Mylar tape and ends sealed with epoxy resin
Leads	Axial leads of tinned wire
Reference standard	IEC 384-16; GB 10190-1988
Climatic catalogue	40/85/21
Capacitance versus rated voltage (UR)	0.01 µF-12 µF/100VDC 0.01 µF-12µF/250VDC 0.001 µF-3.3µF/400VDC 0.001 µF-2.2 µF/630VDC
Capacitance tolerance	M = ±20%, K = ±10%, and J = ±5%
Dissipation factor	DF≤0.1% (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 R≤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)

Application of Cbb20 polypropylene safety apacitor:

1.Coupling, decoupling, by-passing and timing circuit
2.Automatic control system,communication equipment
3.Charging/discharging, lighting, noise suppression and frequency modulation

Polypropylene film capacitors are mainly used in electronics, home appliances, communications, electric power, electrified railways, hybrid vehicles, wind power, solar power and other industries. The stable development of these industries has promoted the growth of the film capacitor market.