T700N18TOFXPSA1 Discrete Semiconductor Products

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Thyristors - SCRs - Modules: T700N18TOFXPSA1 application field and working principle

The T700N18TOFXPSA1 from Toshiba is a three-phase thyristor module. The module has three gated SCRs, one anti-parallel diode per SCR, and one parallel diode. This module is specially designed for applications that require a wide input voltage range (22-440V).

The T700N18TOFXPSA1 is mainly used in motor controller applications such as electric motor control, fans, pumps, and other applications like speed control, induction heating, and battery charging. The module helps in controlling the speed and torque of the motor, and enables the flexibility to configure the control according to the power needed. It can be used as a chopper, an inverter, an H bridge, or as a rectifier.

The T700N18TOFXPSA1 offers a wide range of features and capabilities such as low losses, high-temperature performance, low-noise operation, and soft switching. It also has cost-optimized packaging, giving the designers a solution that is powerful and reliable.

In terms of its working principle, the T700N18TOFXPSA1 works on the basis of applying a positive gate voltage to the gate terminal. This voltage is normally called gate trigger voltage and must be above certain level in order to cause current to start flowing in the thyristor, allowing it to switch on. An application of gate current also turns off the thyristor by simply reverse biasing the gate with negative voltage. This process is called gate turn-off, or GTO.

The thyristor module has an outer can housing, enabling it to be highly reliable for a wide range of applications. It also has an overvoltage rating which provides enhanced protection from high voltage peak, ensuring safety and security. It has a blocking current rating of 25 Amps, meaning that it can be used for various current handling applications. The operating temperature range of the module is -40 to +85 degrees Celsius.

The T700N18TOFXPSA1, with its wide range of features, is particularly useful for handling high voltages, low losses and low-noise operation. It is capable of offering reliable and accurate control over motor speed and torque, allowing it to be used in many different applications. It comes in a cost-effective package and is easy to install and configure, making it an ideal choice for many different applications.

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