685PHC700K

Film capacitors are based on the technology of using a plastic film as the dielectric. As a result of its excellent electrical properties, film capacitors have become an important element in the electronics industry and are widely used in different applications where reliability is essential.

685PHC700K is specifically designed for noisy environment and provides an optimum balance between dielectric and leakage current under nominal operating conditions. It is a class 1 multi-layer ceramic capacitor with an insulation resistance of >10^12 Ohm and a dissipation factor of 0.0001. It has a rated voltage of 700VAC/DC and a temperature range of -55ºC to +125ºC. This makes it suitable for use in a variety of applications, from DC-link capacitors in inverters to energy storage capacitors in industrial equipment.

The working principle of a film capacitor is the same as all capacitors. It stores energy in an electric field created by the electrical charge on the two plates separated by a dielectric material. When a voltage is applied across the capacitor, the plates accumulate charge, and so a capacitance is formed between the plates.

In the case of 685PHC700K, the electrodes are connected to the dielectric material, which forms a stable, well-defined electric field. This field stores energy and can be used for various purposes, such as filtering, coupling, energy storage, voltage regulation and so on. The capacitor also has excellent cancellation properties, which makes it well suited for use in noise suppression and interference rejection circuits.

One of the most popular applications of 685PHC700K is in DC-link capacitors for inverters. In this application, the capacitor is connected between the input and output DC rails to act as a filter, smoothing out the power supply. This reduces the amount of ripples in the AC-line output from the inverter, resulting in less interference in the generated AC power and improved efficiency.

Another application is in power factor correction, where the capacitor is connected between the input and output of an AC circuit to reduce the reactive power caused by inductive and capacitive loads. This helps improve efficiency and minimize the need for additional power management devices in the circuit.

Finally, 685PHC700K film capacitors are also used in medical device applications, where their low-profile form factor and high dielectric strength make them ideal for use in proximity detectors, contactless switches, and injector systems. Due to its excellent performance in noise suppression and power conditioning, 685PHC700K film capacitors are an ideal choice for these kinds of applications.

In summary, 685PHC700K film capacitors are a very versatile component, suitable for a wide range of applications. Its superior dielectric properties, high insulation resistance, and low-profile form factor make it an ideal choice for use in noise suppression, power factor correction, and medical device applications.