UH4PDC-M3/87A

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The UH4PDC-M3/87A is a diode array designed for use in a variety of applications. It is a part of the UHF diode family, a group of high-speed, high-current rectifiers primarily developed for commercial and industrial electronics. The device is based on a through-hole package, offering an array of four reversed-biased diodes for rectification of sinusoidal alternating current (AC). The following will discuss the application fields and the working principle of the UH4PDC-M3/87A diode array.

The UH4PDC-M3/87A diode array is a high-performance component that provides excellent resistance to common-mode and differential-mode voltage transients, as well as high current and surge handling capabilities. The component is suitable for use as an AC line rectifier in switch mode power supplies (SMPS), power factor correction (PFC), and radio frequency interference (RFI) protection applications. In addition, the component is suitable for applications requiring a high-voltage AC current rectification, such as automotive and industrial motor drives. It is also suitable for use in commercial and industrial AC line power supplies, as the component can withstand high inrush currents.

The UH4PDC-M3/87A diode array consists of four dual-anode PN diodes connected in parallel. The two anode connections of each diode are connected in series. This configuration provides a low forward voltage drop when rectifying AC, while also allowing the component to achieve a high surge current capability. The component is also designed to quickly recover from transient voltage dips, which reduces the possibility of component failure due to sustained high-voltage transients.

The operating principle of the UH4PDC-M3/87A diode array is based on the principle of rectification. When a sinusoidal AC current is applied, the diodes conduct current in one direction. During the positive cycle of the AC, the current flows through the diodes in the forward direction, allowing it to be rectified. During the negative cycle of the AC, the diodes are reversed biased, meaning the current is not allowed to flow. This causes the current to be rectified, resulting in a DC output voltage.

In summary, the UH4PDC-M3/87A diode array is designed for use in a variety of commercial and industrial applications, such as switch mode power supplies, power factor correction, radio frequency interference protection, and other high current AC line rectification applications. The component consists of four dual-anode PN diodes connected in parallel, providing a low forward voltage drop and a high surge current capability. The component operates on the principle of rectification, allowing a sinusoidal AC current to be converted into a DC output voltage.

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