ND431621 Discrete Semiconductor Products

Series:	--
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Structure:	Series Connection - All SCRs
Number of SCRs, Diodes:	2 SCRs
Voltage - Off State:	1.6kV
Current - On State (It (AV)) (Max):	210A
Current - On State (It (RMS)) (Max):	330A
Voltage - Gate Trigger (Vgt) (Max):	3V
Current - Gate Trigger (Igt) (Max):	150mA
Current - Non Rep. Surge 50, 60Hz (Itsm):	11190A @ 60Hz
Operating Temperature:	-40°C ~ 130°C (TJ)
Mounting Type:	Chassis Mount
Package / Case:	POW-R-BLOK™ Module

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The ND431621 SCR module, also known as an SCR (silicon-controlled rectifier) module, is a semiconductor device that acts as a switch for controlling electric current and voltage. It is both efficient and reliable, and is capable of efficiently controlling high currents in either AC or DC circuits. The ND431621 module is widely used in various applications ranging from industrial automation to robotics and lighting control. In this article, we will discuss the various applications of the ND431621 module, as well as its working principle. Applications The ND431621 module is an ideal choice for controlling large currents in a wide range of industrial and commercial applications due to its efficiency and reliability. It can be used in various industrial applications such as motor control, heating, and welding. In the motor control application, the ND431621 module is used to regulate the current flow in the motor, thus allowing for precise control over speed and torque. It is also used in welding applications, as it is capable of regulating power levels to effectively weld metals together. For heating applications, the ND431621 module can be used to switch on and off electric resistance heaters to provide consistent heating. It is also used in lighting control applications, as it is capable of switching lamps on and off according to a specific schedule. Additionally, it can be used in robotics applications to control the speed and torque of the robot’s motors. Working Principle The ND431621 module is a four-pin solid state module which features a thyristor which is used to control current through the circuit. The module is composed of two parts: an anode, which is connected to the positive voltage source, and a cathode, which is connected to the negative voltage source. When the anode is connected to the positive voltage source and the cathode is connected to the negative voltage source, the thyristor is in the off-state. However, when the anode is connected to the negative voltage source and the cathode is connected to the positive voltage source, the thyristor switches on, allowing current to flow through the circuit. The ND431621 module also features an external gate terminal which is used to control the on/off state of the thyristor. When a small control current is applied to the gate terminal, the thyristor switches on and allows current to flow through the circuit. Conversely, when the control current is removed, the thyristor switches off and the current stops flowing through the circuit. In summary, the ND431621 SCR module is a commonly used device which is used in a wide range of applications. It is composed of a thyristor which acts as a switch for controlling electric current and voltage, and it is regulated by an external gate terminal which is used to control the on/off state of the thyristor. The versatility and reliability of the ND431621 module makes it an ideal choice for controlling large currents in a variety of applications.

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