Structure and typical application of metallized polyester film capacitor

The shell capacitor of metallized polyester film is wound by metallized polyester film. It is non inductive structure and unidirectional lead out. It adopts special spray gold and pouring technology to simulate the aging of ignition equipment. The impulse discharge characteristics of capacitor: when the power supply is turned on, it will prevent the voltage from rising rapidly. When it reaches a large value, it will also prevent the voltage from dropping instantaneously when the power is cut off. Because the capacitance has impulse discharge effect, its capacitance reactance will increase with the increase of capacity in AC current. It can eliminate ripple in DC and isolate DC in AC, but AC signal will require more capacitance reactance with the increase of frequency. The capacitance reactance of the same capacitance is small at low frequency, but it will increase with the increase of frequency in high frequency.

structure

Medium: polyester film. A kind of

Electrode: metal vacuum evaporation layer.

Package: flame retardant epoxy resin

Lead wire: tinned copper clad steel wire

Typical applications

DC and low pulse applications. Such as: low frequency filtering, DC isolation and bypass. A kind of

It is not recommended for AC, filter, oscillation and high frequency applications. A kind of

main features

Metallized polyester film, non inductive winding structure

Wide capacity range, small size and light weight

Good self-healing and long service life

Flame retardant epoxy powder encapsulation