VS-ST183C04CFN0

Current - Hold (Ih) (Max):	600mA
Base Part Number:	ST183C*C
Supplier Device Package:	TO-200AB, A-PUK
Package / Case:	TO-200AB, A-PUK
Mounting Type:	Chassis Mount
Operating Temperature:	-40°C ~ 125°C
SCR Type:	Standard Recovery
Current - Non Rep. Surge 50, 60Hz (Itsm):	4900A, 5130A
Current - Off State (Max):	40mA
Series:	--
Current - On State (It (RMS)) (Max):	690A
Current - On State (It (AV)) (Max):	370A
Voltage - On State (Vtm) (Max):	1.8V
Current - Gate Trigger (Igt) (Max):	200mA
Voltage - Gate Trigger (Vgt) (Max):	3V
Voltage - Off State:	400V
Part Status:	Active
Packaging:	Bulk

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Thyristors - SCRs

The VS-ST183C04CFN0 is a silicon-controlled rectifier (SCR) or thyristor, a type of power switch used to control the flow of electricity. This product is a four-terminal semiconductor device that includes three electrodes: a gate, a control electrode, and a main terminal. Its main use is in AC switching, to produce constant current, constant voltage, and overvoltage protection.

Applications

SCR\'s are used mainly for high-voltage AC applications such as voltage regulation, motor control, power supplies, lighting controls, and process control. In addition, SCR\'s are often used in low power applications such as logic and interface circuits. As a popular power-switching option, SCRs are ideal for on/off AC signal control, producing a freer-flowing operation than mechanical relays.Most notably, VS-ST183C04CFN0 is commonly used in motor control applications. It can be used to utilize forward- and reverse-phase dimming control, AC line regulation, and speed control. This makes it a great choice for a variety of motor control applications, including crawl speed control, conveyor speed control, and speed regulation.The VS-ST183C04CFN0 can also be used in AC line regulation and voltage regulation. It is especially useful in M-H arc welding, allowing accurate voltage control while providing protection from overvoltage conditions.

Working Principle

The VS-ST183C04CFN0 SCR uses the "cathode-gate" principle. When there is no voltage applied to the gates of the SCR, no current flows. When the correct voltage is applied to the gate of the SCR, it conducts like a closed switch and allows current to flow from the anode to the cathode. A characteristic of the SCR is that once the gate is triggered and current begins to flow, the SCR will remain latched on until the current is reduced to a predetermined level. As the current continues to flow, the voltage drop across the SCR decreases, allowing the device to drop out, but if the current is maintained, the SCR will remain on.The SCR can also be turned on and off by a simple pulse timer circuit, allowing the user to turn the SCR on and off at regular intervals as required. This type of control is useful in applications such as motor control and power factor control.

Conclusion

The VS-ST183C04CFN0 is a four-terminal semiconductor device that uses the cathode-gate principle. This device is mainly used for AC switching, to produce constant current, constant voltage, and overvoltage protection and is ideal for motor control applications such as crawl speed control, conveyor speed control, speed regulation, and voltage regulation. It can be used to turn the SCR on and off using a simple pulse timer circuit.

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