IRKH136/08

Thyristors and SCRs are two of the most commonly used modules in power electronics. Thyristors are four-layer devices while SCRs are three-layer devices in which the second layer is held at a high potential relative to the other three layers. The IRKH136/08 is a rugged, modular SCR designed for a wide range of applications in both industrial and consumer markets. This module has a wide operating temperature range and has the ability to long life and high reliability.

The IRKH136/08 has a low thermal impedance, which is ideal for applications where the dissipation needs to be minimized. It has a high switching speed and high peak current, making it suitable for use in high-frequency, high-current applications. The internal snubber circuit helps ensure low switching losses and reduces the possibility of false triggering.

The IRKH136/08 has a three-pin connection, with pin 1 connected to an AC ground and pins 2 and 3 connected to two DC sources. The module includes a gate and two terminals for the switching of current, one positive and one negative. A positive polarity is required to turn the module on and a negative polarity is required to turn the module off. When the control voltage reaches the predetermined triggering threshold, the module begins to conduct.

The IRKH136/08 works on the principle of thyristor switching. When the control voltage exceeds the forward breakover voltage, the gate current flows and the anode-cathode voltage begins to drop. This voltage drop continues until the conduction angle is reached and a steady-state current flows through the module. When the current through the module reaches a certain level, the module triggers, and the SCR is turned on. The current will then continue to flow until it is blocked.

The IRKH136/08 can be used in a wide variety of applications, including AC motors, HVAC systems, temperature measuring and controlling circuits, solid-state relays, and UPS systems. It is also suitable for use in high-power circuits, such as AC drives, DC drives, Phase-Controlled Rectifier Bridges, DC/AC inverters, DC motors, and welding machines. The module has a wide operating temperature range and can be used in many different environmental conditions.

In summary, the IRKH136/08 is a rugged, modular SCR designed for a wide range of applications in both industrial and consumer markets. It has a low thermal impedance, high switching speed, and high peak current, making it suitable for use in high-frequency, high-current circuits. The module works on the thyristor switching principle and can be used in a variety of applications, including AC motors, HVAC systems, temperature measuring, and controlling circuits, solid-state relays, and UPS systems.