305PSB700K6J

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Film Capacitors

Film capacitors are a type of capacitor made from thin dielectric films such as polyester, polypropylene, and polystyrene. They have low losses, low di/dt, low inductive reactance, high stability, and high breakdown voltage ratings.

The 305PSB700K6J is a non-polarized polyester film capacitor manufactured by Vishay. It has a maximum operating voltage of 700V DC with a capacitance range of 0.0015-0.015 μF and ripple current rating of 0.3A.

Application Field

The Vishay 305PSB700K6J film capacitor is a low-cost and reliable option for applications such as power electronic circuit design, DC/DC power supplies, and snubber circuits where its high breakdown voltage and low ESR ratings are essential, such as switches, inverters, and DC motor drives.

The capacitor is also widely used in electrical and electronic equipment, including in consumer products like radios, TVs, air conditioners, microwave ovens, and washing machines. It is also used in automotive/transportation electronics, like AC systems and power window systems, as well as in medical electronics, such as electro-ejaculators, defibrillators, and X-ray machines.

Working Principle

The basic principle of film capacitor operation is similar to that of other capacitors. It works by storing electrical charge and releasing it as necessary. It does this by using dielectric films, usually polypropylene. As current passes through the capacitor, electrical charges collect on the dielectric films. This creates an electric field, which can store energy.

When the voltage across the capacitor is low, the capacitor holds onto more energy. When the voltage across the capacitor is high, the capacitor releases the energy back into the circuit. This gives the capacitor its ability to filter out high frequency signals while allowing low frequency signals through.

In addition, the 305PSB700K6J film capacitor has a low dv/dt rating, which allows it to react quickly to changes in voltage and maintain accurate operation. The low dv/dt rating also ensures that the capacitor will not break down or become unstable when exposed to sudden or frequent changes in voltage.

The combination of these features makes the 305PSB700K6J film capacitor a reliable and versatile choice for many power electronic applications.

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