T507144074AQ

Series:	--
Packaging:	Bulk
Part Status:	Active
Voltage - Off State:	1.4kV
Voltage - Gate Trigger (Vgt) (Max):	3V
Current - Gate Trigger (Igt) (Max):	150mA
Voltage - On State (Vtm) (Max):	4.2V
Current - On State (It (AV)) (Max):	40A
Current - On State (It (RMS)) (Max):	63A
Current - Off State (Max):	15mA
Current - Non Rep. Surge 50, 60Hz (Itsm):	1000A @ 60Hz
SCR Type:	Standard Recovery
Operating Temperature:	-40°C ~ 125°C
Mounting Type:	Stud Mount
Package / Case:	TO-209AC, TO-94-4, Stud
Supplier Device Package:	TO-94

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Thyristors - SCRs

A thyristor, or silicon-controlled rectifier (SCR), is a switching device that can be switched on or off by the control of a low power trigger signal. A T507144074AQ is a type of SCR, and it is widely used in various applications such as switching, controlling, and protecting AC power circuits.

Working principle

An SCR consists of four layers of semiconductor materials with each layer having a different doping level. When two layers of semiconductor materials with the same doping level are put together, they form a PN junction. When voltage is applied across the two layers, current can flow through the junction. This allows the SCR to act as a switch, which can be turned on and off by using a low power trigger.When no voltage is present, the SCR is in the off state and no current will flow. When a low power trigger signal is applied to the gate of the SCR, current will start to flow through the PN junction and the SCR will be in the on state. Once the SCR is in the on state, no trigger signal is needed to keep the SCR in the on state. To turn off the SCR, the current through the SCR must be reduced to zero. This can be done by cutting off the external power source or by applying a reverse voltage to the SCR.

Application field

The T507144074AQ SCR is typically used as a switching device in AC power circuits. It can be used to control and protect AC circuits by providing a fast turn-on and turn-off time. It is also capable of controlling high power outputs with a low power trigger signal.The T507144074AQ SCR is mainly used in motor control applications such as variable speed drives, starter motor control circuits, soft starters, solenoid valve control, and motor overload protection. It is also used in HVAC systems, power supplies, welding machines, and power switching.The T507144074AQ SCR is a robust and reliable switching device due to its low power consumption and high power dissipation. Its fast switching capability and ability to handle high currents makes it an ideal choice for a wide range of applications. It is also easy to install and maintain, making it a popular choice for users.

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