SE20FD-M3/H

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Diodes - Rectifiers - Single

The SE20FD-M3/H is a single-phase, silicon bridge rectifier commonly used to convert alternating current (AC) power to direct current (DC) power. It is typically installed in electronic systems, such as computers, TVs, and home appliances, and is often used to provide a constant DC voltage for a particular application.

Working Principle

The SE20FD-M3/H rectifier operates on the principle of unidirectional conduction. Its four diodes are connected in a bridge formation – with two each attached to each of the two AC supply lines – with one of the two input lines being designated positive and the other negative.

When a positive voltage is applied to the positive input line, current flows through the upper two diodes toward the positive output. Meanwhile, the other two diodes, facing the negative input, become reverse-biased and are blocked from conducting; the output of the SE20FD-M3/H is then the positive portion of the AC cycle.

When the AC input switches polarity, the upper two diodes become reverse-biased and are blocked from conducting. The lower two diodes, facing the positive input, become forward-biased and current flows from the negative input line, through them, to the negative output. The output of the SE20FD-M3/H is now the negative portion of the AC cycle. This process repeats itself for each cycle of the AC mains supply.

The ability of the SE20FD-M3/H to transfer AC to DC power makes it highly useful for a wide range of applications, including power supply circuits on consumer electronics, unmanned motor systems, and other low-voltage DC applications.

Advantages of the SE20FD-M3/H

The SE20FD-M3/H single-phase bridge rectifier offers users several benefits, including:

• Low forward voltage drop, resulting in reduced power loss;
• High-frequency operation;
• Small form factor and light weight;
• Mini- circuits design;
• Low power consumption;
• High surge capability; and
• High reliability.

Applications for the SE20FD-M3/H

The SE20FD-M3/H single-phase bridge rectifier is commonly used in a variety of circuits, including:

• AC/DC power supplies;
• Uninterrupted power supplies (UPS);
• Switching mode power supplies;
• Power switching devices;
• Low-voltage power supplies;
• Radio and communication equipment;
• Power regulators; and
• Domestic appliances.

The SE20FD-M3/H single-phase bridge rectifier is an effective and reliable solution for providing direct current voltage from a single-phase AC source. Its features, such as small size and light weight, make it highly versatile and well suited for use in a wide variety of circuits and applications.

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