VS-ST173C12CFK0

Current - Hold (Ih) (Max):	600mA
Base Part Number:	ST173C*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):	4680A, 4900A
Current - Off State (Max):	40mA
Series:	--
Current - On State (It (RMS)) (Max):	610A
Current - On State (It (AV)) (Max):	330A
Voltage - On State (Vtm) (Max):	2.07V
Current - Gate Trigger (Igt) (Max):	200mA
Voltage - Gate Trigger (Vgt) (Max):	3V
Voltage - Off State:	1.2kV
Part Status:	Active
Packaging:	Bulk

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Thyristors - SCRs

VS-ST173C12CFK0 Application Field and Working Principle

Thyristors are electronic components that are used to switch electric current. There are three main categories of thyristors: triacs, diacs and SCRs. One of the popular SCRs is the VS-ST173C12CFK0. It is commonly used in commercial, industrial and military applications, such as motor control, lighting control, AC power pollution control, uninterruptible power supplies (UPSs) and many more. VS-ST173C12CFK0 is a silicon controlled rectifier (SCR) with a trigger current rating of 12 A, a blocking voltage of 175 V, and a current rating of 70 A at a case temperature of 25°C. It is capable of switching on and off current in various applications at high speed. The working principle of SCRs is fairly simple. When a small current flows through the control gate or the triggering terminal, it creates a small “majority” current that triggers the SCR to turn on. After the SCR has been turned on, it remains on until the current flow through it reaches zero or a predetermined voltage is applied to it. To understand how SCRs control current in a circuit, it is important to note that the flow of current in an SCR is regulated by a switching device called the gate. The gate can be controlled by a small current or voltage applied to the gate terminal, or simply by increasing or decreasing the current or voltage flowing through the main circuit. The flow of current or voltage can be monitored to study the working of an SCR, as well as to diagnose any faults in the circuit.SCRs are widely used in various applications such as motor control, switching power supplies, UPSs, high-efficiency power converters, automotive systems, medical equipment, and home appliances. In motor control applications, SCRs are used to control motors for speed and torque control, as well as for high power speed and other control applications. In switching power supply applications, SCRs are used to regulate current and voltage. In UPSs, SCRs are used to convert alternating current (AC) to direct current (DC), as well as to protect against power failures. In high-efficiency power converters, SCRs are used to improve the efficiency of power converters by smoothing out the rectified current waveforms. In automotive systems, SCRs are used to provide over-voltage protection, as well as for controlling the fuel injection system. Finally, in home appliances, SCRs are used to switch on/off electric current and protect the appliance from power surges or other damage. In conclusion, VS-ST173C12CFK0 is a popular SCR that is used in various commercial, industrial, and military applications. It offers a high current rating and blocking voltage, and is capable of switching on and off current in various applications at high speed. The working principle of an SCR is quite simple, and the gate can be easily controlled by a small current or voltage applied to the gate terminal. SCRs can be used in motor control, switching power supplies, UPSs, and many more application as well.

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