APXG250ARA680MH70G

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Aluminum-Polymer Capacitors are devices typically used in electrical circuits for storing electrical energy. They are often found in numerous applications ranging from aerospace and automotive to audio/visual and home entertainment. The APXG250ARA680MH70G capacitor is an example of a polymer aluminum capacitor which offer specific advantages over traditional aluminum electrolytic capacitors. This article will discuss the application field and working principle of this particular capacitor.

The APXG250ARA680MH70G capacitor is designed for use in commercial and industrial applications. Its primary applications are for high voltage, high temperature applications such as motors, inverters, and switching power supplies for general purpose loads. The component is rated for an operating temperature range of -55°C to +105°C with an operating voltage range of 16V to 630V. The capacitor is also available in a wide variety of capacitance values and in three different sizes: 8.5×12.7mm, 10.8×17.7mm, and 12.5×18.5mm.

The polymer aluminum capacitor utilizes a highly conductive electrolyte that is sandwiched between two aluminum plates. One of the plates has a thin dielectric layer of a conductive polymer material, while the other has an etched metallized layer. This metallized layer consists of extremely small pores, which are filled with the highly conductive electrolyte. When a voltage is applied between the two plates, the electrolyte is charged, resulting in a storage of charge or an increase in the capacitance of the device. The capacitance value is determined by the area of the aluminum plates, the distance between them, and the permittivity of the electrolyte used.

The APXG250ARA680MH70G capacitor offers several advantages compared to conventional aluminum electrolytic capacitors. For one, it has a very low impedance when DC voltages are applied, which means it can operate over a wide frequency range and can handle high AC power levels with lower power losses. Its high capacitance-voltage (CV) and good ripple current capabilities make it an idea solution for pulse-mode applications since it can store up to a rated capacitance value even when AC voltages are applied. Furthermore, it can handle higher DC voltages than traditional aluminum electrolytic capacitors and is highly resistant to extreme temperatures and vibrations. These features make the capacitor ideal for providing reliable and steady power in harsh operating conditions.

The APXG250ARA680MH70G capacitor is a polymer-aluminum capacitor that offers many advantages over conventional aluminum electrolytic capacitors. It can handle high voltages, high temperature applications, and has excellent ripple current and capacitance-voltage capabilities. It is ideal for providing reliable and steady power supply for industrial and commercial applications in extreme operating conditions.

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