474MSR250K

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Film capacitors are used in a variety of electronics applications, including DC-DC converters, power supplies, amplifiers, filters, and oscillators. They are typically categorized based on their dielectric type, which can include polycarbonate/ polypropylene, polyester, polystyrene, and polyethylene naphthalate, among others. The 474MSR250K is a polyester-film capacitors driven by the proven code-type stands from Vishay, and is ideal for applications requiring high stability and reliability in demanding, high-temperature applications.

The 474MSR250K is a self-healing type of capacitor, meaning that the dielectric material is able to instantly recover from electrical damage caused by overstressing or extreme heat. This device also includes a high-temperature-resistant method of terminating and pressure contact pads with a crimp tool.

The 474MSR250K utilizes a two-digit coding system to indicate the capacitor’s specific features, such as its maximum working voltage and its capacitance. The first digit indicates the maximum working voltage, and the second digit indicates the capacitance. This makes it easier for manufacturers to order, use, and assemble the 474MSR250K and other polyester-film capacitors without consulting detailed technical specifications.

The superior properties of the 474MSR250K are due to its high reliability and temperature stability. Its high insulation resistance prevents dielectric breakdown and limits the amount of leakage current. It also has excellent heat dissipation for enhanced endurance in high-temperature applications. The device is capable of handling rapid pulses and continuous full-load current up to its specified limit.

The 474MSR250K is able to achieve the highest peak current levels possible with the 0.125W resistor that is built into the device. This allows for improved efficiency, as the current level is regulated only by the resistor and not by the actual capacitor. Without the resistor, the capacitor would need to absorb or dissipate the energy, leading to inefficient operation.

This type of capacitor also utilizes a combination of negative temperature coefficient (NTC) and positive temperature coefficient (PTC) designs, which provide superior temperature stability and reliable operation. The NTC resists temperature spikes and helps regulate the operating temperature, while the PTC helps to balance the ambient temperature.

The 474MSR250K is ideal for challenging applications where reliability and temperature stability are essential. It can be used in a variety of power supply, high-frequency switching applications, filter circuits, and other temperature-sensitive devices. It is also perfect for applications where minimal voltage loss is required and energy efficiency is a priority.

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