1N3291RA

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The 1N3291RA is a 1500Vrms rated, passivated surface mounted 0.5A Silicon Rectifier Diode. It is part of a range of general purpose silicon diodes with various reverse voltages from 200V to 1500V and other ratings from 0.25A to 5A. It is designed for use in general application rectification, including power supplies for general consumer electronics, and other products benefiting from a high voltage silicon rectifier.

The 1N3291RA is constructed using passivated junction technology for improved reliability, better surge capability and longer operating life. It is packaged in an ultra-small SOT-223 package to make it more space efficient in the design of power supplies, rectifiers and other applications.

The 1N3291RA is a standard silicon rectifier diode, capable of conducting currents of up to 0.5A in either direction when reverse biased. This diode operates in two basic modes: forward biased (current flows from anode to cathode) and reverse biased (current is blocked). Its peak repetitive reverse voltage rating is 1500V.

The forward voltage drop of this diode is very low and increases slightly with temperature. Its reverse leakage current is also very low, rising only slightly with temperature. When used in a typical power supply design, the 1N3291RA results in a low voltage drop across the diode and a low power dissipation in both the forward and reverse directions.

The 1N3291RA is especially suitable for use in connections between a high voltage power supply and low voltage circuits in consumer electronics. Its ultra-small SOT-223 package makes it more space-efficient for use in consumer electronics applications, such as large screen TVs, DVD players, etc., where bulkier and less efficient diodes would be unsuitable.

In summary, the 1N3291RA is a high voltage, passivated surface mounted 0.5A Silicon Rectifier Diode with an Ultra-Small SOT-223 package. It provides low power dissipation and low voltage drop when used in consumer electronic power supplies, and is especially suitable for large screen TVs and DVD players due to its size and efficiency.

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