B542-2T

Thyristors – SCRs – Modules are a range of semiconductor devices that are used for a variety of purposes, from amplifying and controlling power to regulating electrical systems and controlling other electronic components. The B542-2T is one such module, and has a number of applications where it is able to provide reliable, high-current control for various circuits. In this article, we will take a closer look at the B542-2T application field and working principle.

Types of Applications

The B542-2T is mostly used in radio-frequency (RF) switching applications such as transmitters, receivers and antenna tuners. It is also used in amplifiers, pulse forming networks, waveform generators and other RF circuits where high current control is required in order to achieve desired results. Due to its reliable operation, it is frequently found in both military and commercial applications which require high levels of reliability and performance.

Electrical Characteristics

In order to understand the B542-2T better, it is important to first look at its electrical characteristics. This module has a typical on-state voltage drop of 2.5V, with a peak current rating of up to 200A at a junction temperature of +150°C. Its maximum blocking voltage is 800V and its forward surge current rating is up to 7A. Its typical gate trigger current is around 100μA, while its maximum gate trigger voltage is 5V.

Working Principle

The B542-2T is a three-lead thyristor module with an insulated gate. When the gate voltage is sufficiently positive, current starts to flow through the module and the thyristor is said to be in the ‘on’ state. Current keeps flowing until the gate voltage drops to a level at which the device is no longer able to sustain current. At this point, the device switches to the ‘off’ state. The device will remain off until another positive gate voltage is applied, thus switching it to the on state once again.

Conclusion

The B542-2T is a thyristor module that can be used in many applications, including RF switching, pulse forming and waveform generators. Its typical on-state voltage drop is only 2.5V, and its peak current rating can reach 200A at junction temperatures of up to +150°C. It has a maximum blocking voltage of 800V and a gate trigger voltage of 5V. Finally, understanding the B542-2T’s working principle is also essential to getting the most out of this module.