1SR124-400AT-82

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Diodes are semiconductor components that are known for their ability to allow current to pass through them in one direction but not the other. The 1SR124-400AT-82 is a rectifier diode and is used to achieve rectification in AC-DC circuits, allowing alternating current to be converted into direct current instead. This type of diode is most often used in power supplies, voltage-stabilizing, and motor speed control applications. Here we will look at the application field, working principle and key features of this diode.

Application Field

The 1SR124-400AT-82 is a single, ultra-fast recovery silicon rectifier that is suitable for a variety of applications. It can be used in switch mode power supplies, DC-to-DC converters, inverters, forward converters and AC adapters. It is also used for controlling DC motor speed, soft start circuitry, and voltage-stabilizing systems. With its fast recovery time (typically 50ns), ultra-low forward voltage drop (1.45V max) and maximum peak repetitive reverse voltage of 400V, this diode is one of the best choices for applications that require high switching speeds and signal line protection.

Working Principle

The 1SR124-400AT-82 is a single diode, meaning it has one anode and one cathode. When a forward voltage is applied to the anode, the diode allows current to flow from the anode to the cathode, creating a current flow. In reverse, the forward voltage decreases the speed of current flow, preventing the current from flowing backwards. This action is known as rectification, and allows alternating current (AC) to be converted into direct current (DC).

Key Features

The 1SR124-400AT-82 has a variety of features that make it an ideal choice for a range of applications. It has a single-phase, full-wave rectification, and is capable of high speed switching with its ultra-fast recovery time. It also has a low forward voltage drop, meaning it can handle a large amount of current without generating excessive voltage losses. It has an average forward current of 4A and a maximum peak repetitive reverse voltage of 400V, allowing it to handle high voltage applications. It also has a maximum thermal resistance of 25°C/W and a maximum reverse leakage current of 10µA, making it capable of operating at a high temperature without risk of damage.

In conclusion, the 1SR124-400AT-82 is a single, ultra-fast recovery rectifier diode that is used for a variety of applications. It is suitable for controlling DC motor speed, stabilizing voltage, and providing signal line protection. This diode has a low forward voltage drop, ultra-fast recovery time and high peak repetitive reverse voltage, making it capable of handling high current and high voltage applications. With its range of features, it is a popular choice of diode for many electrical engineering projects.

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