BTA420-800CT,127

Series:	--
Packaging:	Tube
Part Status:	Active
Triac Type:	Standard
Voltage - Off State:	800V
Current - On State (It (RMS)) (Max):	20A
Voltage - Gate Trigger (Vgt) (Max):	1V
Current - Non Rep. Surge 50, 60Hz (Itsm):	200A, 220A
Current - Gate Trigger (Igt) (Max):	35mA
Current - Hold (Ih) (Max):	40mA
Configuration:	Single
Operating Temperature:	150°C (TJ)
Mounting Type:	Through Hole
Package / Case:	TO-220-3
Supplier Device Package:	TO-220AB
Base Part Number:	BTA420-800

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Thyristors - TRIACsThe BTA420-800CT,127 is one of the most popular types of thyristors. It is a silicon controlled rectifier (SCR) that functions as a three-terminal electronic switch. Thyristors are electronic components found in many electronic devices and can control the flow of current through a circuit. Thyristors are divided into two main categories: SCRs and TRIACs. The BTA420-800CT,127 belongs to the TRIACs family. The acronym TRIAC stands for TRIple AC switch and it is basically a three-terminal, three-junction, bidirectional SCR. TRIACs can switch current in both directions and they can control either alternating or direct current.TRIACs are usually found in home appliances, lighting control systems, air conditioners and industrial motor controls that require the control of the motor current. In these applications, the BTA420-800CT,127 can be used to provide a steady and accurate current control, turning on and off the device at specific intervals. The BTA420-800CT,127 also has a wide range of additional uses. It is typically used in motor speed controls, solid-state relays, phase control interfaces, lighting dimmers, and other applications that require pulse-width modulation. Additionally, it can be used in rectifying ethernet signals or switching frequency synthesizers. Since the BTA420-800CT,127 belongs to the TRIAC family, its working principle is quite similar to the SCRs. Basically, when a trigger voltage is applied to its Gate pin, a current will flow between its two other pins (Anode and Cathode). As this current increases, it causes a change in the TRIAC\'s resistance, which is what causes the device to switch on and off. This process is known as commutation and it involves the switching of current both in the forward and reverse directions. Additionally, commutation is also used for controlling the amount of current flowing through a circuit, giving the user the ability to regulate and adjust the current to the desired level.Overall, the BTA420-800CT,127 is a very useful and versatile device, allowing for the control of current in a wide variety of applications. It is an efficient way to control and maintain a steady flow of current and it is also very easy to use, making it an ideal choice for a wide range of applications.

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