MPXQP33K

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Film Capacitors

Film capacitors are a type of capacitor made of thin film plastic material which is wound in a coil and has a special dielectric that can provide a high capacitance and low dissipation factor. They are known for their high stability, low noise capabilities, high current-handling capabilities, and low-temperature coefficient. Film capacitors are used in various applications such as audio frequency circuits, electronic filters, power conditioning, signal processing, and EMI/RFI suppression.

The MPXQP33K is a form of film capacitor manufactured by Murata, which is available in four different series – the PX Series, the X2 Series, the X2V Series, and the X3V Series. Each series is designed for a specific field of application and has unique features to meet the needs of its intended use.

The MPXQP33K is primarily used in audio frequency circuits, usually as a DC blocking capacitor. It functions by acting as a filter to prevent DC from passing through to the output, while simultaneously allowing AC signals to be passed. The capacitor also functions to reduce the effects of transformer interaction and hum, which can be an issue with inferior capacitors. In addition to DC blocking capabilities, the MPXQP33K can be used for antenna decoupling, as an impedance matching network, and for power line frequency current block.

The working principle of the MPXQP33K capacitor is based upon capacitance. This is a measure, in Farads, of the ability of the capacitor to store an electric charge across its terminals. The amount of charge stored depends on the capacitance value of the capacitor, and this value is determined by the size of the film and the type of dielectric used. When a voltage is applied across the terminals, an electric field is created between the plates of the capacitor, which causes charge to be stored on the capacitor’s microcapacitors.

The MPXQP33K is a good choice for high-quality audio applications, as it has excellent sound reproduction and low noise. It is also suitable for general digital and high power applications, due to its high current-handling capabilities and low-temperature coefficient. With its wide assortment of series, it can be tailored to meet specific requirements, allowing for greater design flexibility and greater customization of the application.

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