Current - On State (It (AV)) (Max):	90A
Package / Case:	D-55
Mounting Type:	Chassis Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Current - Hold (Ih) (Max):	200mA
Current - Non Rep. Surge 50, 60Hz (Itsm):	1780A, 1870A
Current - Gate Trigger (Igt) (Max):	120mA
Voltage - Gate Trigger (Vgt) (Max):	2.5V
Current - On State (It (RMS)) (Max):	141A
Series:	--
Voltage - Off State:	1.2kV
Number of SCRs, Diodes:	1 SCR
Structure:	Single
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Thyristors - SCRs - Modules

VS-T90RIA120S90 application field and working principle

Thyristors are a popular type of semiconductor switch, used for many industrial and consumer applications. The VS-T90RIA120S90 is a special type of thyristor, also known as a Silicon Controlled Rectifier (SCR), which is a type of electronic switch. SCRs are popularly used in power control applications and are available in various packages and configurations, such as the VS-T90RIA120S90, which is a full package module.The VS-T90RIA120S90 is a full-package module that contains four SCRs connected in inverse parallel with a discharge diode and a snubber diode. The module is also equipped with a control gate, which is used to trigger the SCR and control the power applied to the module. The module has a rated maximum repetitive off-state current of 90 A, a rated maximum reverse blocking voltage of 1200 V, and an on-state current that varies with the applied voltage.The working principle of an SCR is based on the concept of a two-junction diode, which is basically two diodes connected in inverse parallel so that current can flow from either the anode (positive) to the cathode (negative) or vice versa. When no voltage is applied to the SCR, it remains in its off-state, allowing current to flow only in one direction. When a sufficient voltage is applied in the same direction as the current, the SCR will change its state to the on-state, allowing current to flow in both directions.In the case of the VS-T90RIA120S90 module, the module comes with its own control gate, which is used to trigger the on-state. The control gate can be triggered in several ways, such as manually via a switch, remotely via a digital signal, or via a control circuit. Once the control gate is triggered, the module can flow current from the anode to the cathode and vice versa. The module can then be used for various applications, such as switching, power control, and dimming, among others.The VS-T90RIA120S90 module is mainly used in power control applications, but it can also be used in other types of applications, such as motor control, heating, and lighting. These modules are also used in safety applications, such as automotive lighting, circuit protection, and motor control. While the module is mainly used in AC applications, it can also be used in DC applications, such as rechargeable battery chargers.To ensure reliable operation, the VS-T90RIA120S90 module should be installed properly to prevent accidental triggering and overheating. Additionally, it is important to use the correct gate trigger method and to connect the correct gate voltages. Furthermore, it is also important to use the correct snubber and discharge diodes to protect the SCRs from surge currents.In conclusion, the VS-T90RIA120S90 module is a very versatile and reliable device that can be used in a variety of applications, such as power control, motor control, heating, and lighting. It is important to follow the correct installation and operation procedures to ensure the module\'s reliable operation and to protect it from accidental triggering and overheating.

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