IRKT71/10A

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The IRKT71/10A is a silicon controlled rectifier (SCR) module, which is an electrical switch used in a variety of applications. It is a three-phase SCR module and is rated for 10A per phase. The module is part of a family of SCR-based controls, with the IRKT71/10A being one of the higher power ratings.

The IRKT71/10A has a typical on-state voltage drop of 1.5V. On-state voltage drops, also known as forward voltage drops (VF) are important to consider when choosing a module as they can determine how much power is dissipated per power cycle. In addition to the 1.5V on-state voltage drop, the IRKT71/10A has a typical turn-on delay time of 9μs and a typical turn-off delay time of 40μs. These parameters are very important to consider when specifying an SCR module for a particular application. The SCR module also has an on-state current rating of 10A per phase and a peak gate current rating of 10mA.

The IRKT71/10A is used in a variety of applications, including motor control, welding and arcing control, temperature control, switching of mains power, and power supplies. It is also commonly found in industrial environments, due to its high operating temperature range of -40°C to 125°C and its ability to withstand high surge currents. The device is commonly used in vector control applications and is often found in servo motor circuits.

The working principle behind SCR modules is relatively simple. When a small current flows through the gate area of the module, it causes the SCR to switch on. This allows a larger current to flow through the main leads of the SCR. Once a current passes through both the gate and the main leads of the SCR, the SCR may stay on until the current is stopped. This is why the device is often referred to as a trigger switch; it needs to be triggered in order to switch on. To turn the device off, the current flow must be stopped in either the gate or the main leads of the module. This switching of on and off can be used to provide control for a variety of applications.

The IRKT71/10A is a reliable and versatile device that has a wide range of applications. Its on-state voltage drop is relatively low compared to other SCR modules, and its on-state current rating and peak gate current rating are higher than other similar devices. It is often used in vector control applications, due to its fast switching time and its ability to withstand high surge currents.

In summary, the IRKT71/10A is a three-phase SCR module with a 10A per phase on-state current rating and a peak gate current rating of 10mA. It is commonly used in motor control, welding and arcing control, temperature control, switching of mains power and power supplies. Its on-state voltage drop is relatively low and it has a fast switching time. It is a reliable and versatile device, suitable for a range of applications.

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