R73UI0330SE03J

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Film capacitors are a type of non-polarized capacitor that use an organic film as the dielectric material. Film capacitors are known for their durability and high dielectric strength, and are popular choices for many applications such as power supplies, regulating power electronics, for signal filtering and for high-voltage circuit protection. The R73UI0330SE03J is a Film Capacitor from TDK. This particular model is intended for a wide variety of applications, such as DC-Link, High Frequency and Switching Power Supplies.

The R73UI0330SE03J is a radial-lead, snap-in style device with an operating temperature range of -40 to +105 degrees Celsius, and a rated voltage of 150 Volts. It is an aluminum-electrolytic capacitor, with a tolerance of +80/-20 %, a capacitance value of 330µF, an ESR of 0.12 Ohms, and a dissipation factor of 0.17 %. This capacitor is designed for applications that require a capacitor with high capacitance, long operating life and a low ESR.

The working principle behind Film Capacitors is relatively simple. A Film capacitor consists of two conductive surfaces, such as metal foils, that are separated by a dielectric material. The dielectric material, or Film, stores electric charge in the form of electrostatic fields. This dielectric material is the key factor in allowing high capacitance values, low ESR and long operating life.

The orientation of the two conductors determines the direction of the electric field between them. When a potential difference is applied across the two conductors, the negative charges will be attracted to the positive conductor and vice versa. This creates an electric field that is proportional to the potential difference. The electric field will produce a positive charge on one conductor and a negative charge on the other. This creates an electric field across the film, which opposes the current flow.

As the voltage increases, the electric field builds, and the magnitude of the field will exceed the dielectric strength of the Film, causing it to break down and form an electrical connection between the two conductors. This sudden formation of an electrical connection will cause a current to flow between the two conductors. This current flow is what produces the capacitance of the capacitor.

The R73UI0330SE03J is a solid-film capacitor with a low ESR feature and a high capacitance value. Its compact size and snap-in feature make it an ideal component for power supplies, signal filtering and other high-voltage circuit protection devices. Its durable construction, long operating life and stable performance make it a great choice for a wide range of applications.

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