S4040RQ3

Current - On State (It (RMS)) (Max):	40A
Supplier Device Package:	TO-220AB-R
Package / Case:	TO-220-3
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 125°C
SCR Type:	Standard Recovery
Current - Non Rep. Surge 50, 60Hz (Itsm):	430A, 520A
Current - Off State (Max):	10µA
Current - Hold (Ih) (Max):	60mA
Series:	--
Current - On State (It (AV)) (Max):	25A
Voltage - On State (Vtm) (Max):	1.8V
Current - Gate Trigger (Igt) (Max):	40mA
Voltage - Gate Trigger (Vgt) (Max):	1.5V
Voltage - Off State:	400V
Part Status:	Discontinued at Digi-Key
Packaging:	Bulk

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Thyristors - SCRs

Thyristors are devices that control the flow of electric current. They are used a lot in power control, rectifiers, electronic switches, or a number of other applications. Thyristors come in many types, and one type is the SCR, or silicon controlled rectifier. SCRs are often used in large devices like welding machines, and on a smaller scale in devices like dimmer switches, motor drivers, and other applications.The S4040RQ3 is a special type of SCR designed for specific application needs. This SCR features a blocking voltage that is up to 2500V, and a blocking current up to 1600 A. This SCR is packaged in a TO220F package and has an maximum operating temperature of 175 degrees Celsius.The S4040RQ3 is designed to be part of a larger circuit, usually one that is part of a power control or electronic switching application. This SCR is a rectangular four-layer diode designed for the control of large currents. It has a semi-conducting structure that uses four alternating p- and n- layers. The S4040RQ3 uses polar doping in the high power layer in order to achieve high blocking voltage.The S4040RQ3 works by using a trigger current to apply a positive voltage to its gate, which causes it to turn on. Once it is turned on, the SCR allows current from the main circuit to pass through it. This allows current to be passed through the larger circuit, allowing for power control or switching applications.In terms of its application field, the S4040RQ3 is mainly used in high-power applications like motor control, lighting control, and energy management systems. It is a versatile device, as it can be used in a variety of circuits due to its high voltage and current ratings.In summary, the S4040RQ3 is a special type of SCR designed for high-power applications. It is designed to work with a trigger current to allow currents to pass through its main circuit, allowing for power control and switching applications. Its application field mainly consists of motor control, lighting control, and energy management systems.

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