MMP4W1K-F

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Film capacitors, also known as polymer film capacitors or plastic film capacitors, are electrical components that store electrical energy, much like any other capacitor. The film capacitor stores energy by means of a thin film of electrical insulating material (polyester, polypropylene, and other plastics) placed between two electrodes. The distance between the electrodes, known as the ‘dielectric’, results in a capacitance value. Film capacitors are characterised by low internal equivalent series resistance (ERSR) and high pulse current capability, making them ideal for high frequency, high speed and high power applications.

MMP4W1K-F is a film capacitor developed and manufactured by Murata Manufacturing. It is a surface mount, single-port capacitor that features a low profile of 0.8mm, making it ideal for height-limited applications. The capacitor is available in an SMD package size of 4mm x 5mm x 1mm and is able to withstand high temperature up to +125°C. With an withstand voltage of 4V, the MMP4W1K-F has a capacitance of 1µF and a maximum capacitance tolerance of ±20%.

The unique feature of the MMP4W1K-F is its ability to handle high frequency signals with minimal loss. The film capacitor is suited for DC and AC applications in the frequency range from 700kHz to 1MHz and can handle pulse currents up to 40A. This makes it ideal for consumer electronics, telecom and industrial applications where high frequency, high speed and high power signals need to be handled with minimal loss.

The working principle behind the MMP4W1K-F is quite simple. When a voltage or electric current is applied to the capacitor’s terminals, an electric field is created between the two electrodes. This electric field stores energy and charges the capacitor’s plates, thus creating a potential difference between them. As the capacitor charges and discharges, the energy is stored and released, resulting in a corresponding current flow in the circuit.

The MMP4W1K-F is a highly reliable and versatile capacitor that offers excellent performance in high frequency, high speed and high power applications. Thanks to its low profile and wide temperature range, it can be used in a variety of applications, such as switching power supplies, DC-DC converters and high frequency circuits. In addition, the MMP4W1K-F is RoHS compliant, making it a great choice for those who need to adhere to environmental regulations.

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