MPX334K305E

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Film capacitors are a type of electrostatic capacitor that are characterized by their very thin plastic or paper insulation layer. Among the most popular types of film capacitors are polyesters, polypropylene, polystyrene, polycarbonates, and polytetrafluoroethylene, each of which has different characteristics. One of the most popular film capacitors is the MPX334K305E, and this article will discuss the application field and working principle of this device.

The MPX334K305E film capacitor is mainly used in filter production, high frequency circuits, and other applications which require supreme insulation and reliability. It is a polypropylene film capacitor with a 3kVAC rated voltage, 0.3uF capacitance, temperatures between -40°C and +105°C, and an operating frequency between 1.0kHz and 2.5MHz. The MPX334K305E film capacitor offers superior stability, with temperature coefficients between 0 and -150ppm/°C, and has an extremely low dissipation factor of 0.00025. Additionally, it has a very low dielectric absorption (tan δ) of less than 0.1%.

The working principle of the MPX334K305E film capacitor is quite simple. As with all capacitors, the MPX334K305E has two electrodes, and each electrode is covered with an insulator. When an electrical signal passes through the two electrodes, an electrical field is created between them, and this causes an energy storage. The MPX334K305E is a polarized capacitor, meaning that one of its terminals is identified as the positive terminal and the other terminal is the negative terminal. When an electrical signal is passed through the two terminals in an alternating current, the device begins to store charge, and the magnitude of this charge depends on the capacitance of the capacitor.

In addition to its widespread use in filter production, the MPX334K305E film capacitor can also be used in signal coupling and bypassing, DC blocking, and frequency tuning. It is a very stable device that provides superior insulation and reliability, and is well-suited for applications where high temperature range and high capacitance stability are required. Its long-term stability can be further improved by the use of a specialized epoxy coating which increases the capacitors\' temperature range up to 125°C.

In conclusion, the MPX334K305E film capacitor is a highly reliable and stable device with superior insulation and long-term stability. It is commonly used in filter production, high frequency circuits, signal coupling, bypassing, DC blocking, and frequency tuning, and has a wide temperature range and high capacitance stability.

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