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Contact: Wei Zhang

Tel:+86-576-86481322

Mobile:+86-15858612112

E-mail:sale@jydrq.com

Add:Baimutan Industrial Area Zeguo, Wenling, Zhejiang, China

Polypropylene Film Explosion-proof Air Conditioner Capacitor CBB65 450V 45uf

Polypropylene Film explosion-proof air conditioner Capacitor CBB65 450V 45uf Capacitor connection type: Lead-out cable Sealing material: Phenolic resin, Phenolic, resin Outer Shell: ABS, Plastic Trade mark: Jinlingtai Color: Silver, White, Black, red blue, grey, can be produced as request...

Polypropylene Film explosion-proof air conditioner Capacitor CBB65 450V 45uf

Capacitor connection type: Lead-out cable
Sealing material:Phenolic resin, Phenolic, resin
Outer Shell: ABS, Plastic
Trade mark: Jinlingtai
Color: Silver, White, Black, red blue, grey, can be produced as request
Marking: mark on shell By laser, stick on shell, print on the shell 

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3 (1)

CD60-2_副本

Failure protection of varistor
Common resistance is varistor, lightning protection will be used in general. The failure mode of piezoresisors is mainly short circuit. If the short circuit time is too long, the peripheral parts will be damaged. There may also be openings.
When a higher power frequency temporarily overvoltage ACTS on the piezoresisor, it may cause the piezoresisor to instantaneously breakdown short circuit (low impedance short circuit), and the temperature fuse has not enough time to fuse, it may also cause a fire. In order to avoid this phenomenon, another shock resistance power frequency fuse can be connected in series on each varistor (single power frequency fuse may not fuse when aging failure). It can also be used in series with the varistor and the ceramic gas discharge tube, the ceramic gas discharge tube does not conduct when working normally, and the varistor has no leakage current, which can greatly extend the service life. Under surge impact, the ceramic gas discharge tube first breaks down, and then the surge voltage is limited by the piezoresisors. The total residual voltage is the sum of the two, which increases slightly (dozens of volts). After the shock, due to the current limitation of the varistor, the discharge tube can not maintain the conduction and extinguish the arc, and return to the normal working state; When the piezoresistive short circuit failure, because the ceramic gas discharge tube through a large power frequency current will soon fail, but its failure mode is mostly open, so it is not easy to cause fire.

Product AdvantagesProfessionalHave professinal R & D team
High quality with competitive priceAdvanced production technology and high product quality
Produce capacitor more than 20 years, rich experience

The working principle of film capacitor in ac circuit
In high school, there is a saying that ac, dc resistance, said that is the nature of capacitance. In a dc circuit, a film capacitor is equivalent to an open circuit.


We can start with the structure of the film capacitor, the simplest capacitance is due to the structure of the dielectric insulation. After electrification, the electrode plate is charged, forming a voltage (potential difference), but the middle is not conductive because of the insulating material. However, this is provided that the critical voltage of the capacitor (breakdown voltage) is not exceeded.


We all know that any material is relatively insulated, when the material at both ends of the voltage increase to a certain extent, the material can conduct electricity, we call this voltage breakdown voltage. Capacitors are no exception. When they are broken, they are no longer insulators. However, in middle school, such a voltage is not seen in the circuit, so it works under the breakdown voltage and can be regarded as an insulator.


In an ac circuit, however, the direction of the current varies as a function of time. The charging and discharging process of the film capacitor is time-dependent. At this time, the changing electric field formed between the plates is also a function of time. In fact, the current is passed between the film capacitors by the formation of a field.

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Origin: Ze Guo, Wenling, Zhejiang, China
Certification: CE, CQC, UL
Payment: T / T 30% deposit, 70% balance before the shipment.

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