BT151U-650C,127

Current - Hold (Ih) (Max):	20mA
Base Part Number:	BT151
Supplier Device Package:	I-PAK
Package / Case:	TO-251-3 Short Leads, IPak, TO-251AA
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 125°C
SCR Type:	Standard Recovery
Current - Non Rep. Surge 50, 60Hz (Itsm):	100A, 110A
Current - Off State (Max):	500µA
Series:	--
Current - On State (It (RMS)) (Max):	12A
Current - On State (It (AV)) (Max):	7.5A
Voltage - On State (Vtm) (Max):	1.75V
Current - Gate Trigger (Igt) (Max):	15mA
Voltage - Gate Trigger (Vgt) (Max):	1.5V
Voltage - Off State:	650V
Part Status:	Active
Packaging:	Tube

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Thyristors are a type of semiconductor device akin to a switch and are commonly used in motor control and dimming circuits. One type of thyristor, the Silicon Controlled Rectifier (SCR), is typically used in power control applications, such as controlling electric motors or dimming light fixtures. The BT151U-650C 127 is a type of thyristor that falls into the category of SCRs. The BT151U-650C 127 is a four-layer silicon controlled rectifier diode designed for medium power switching and phase control applications. It is composed of four layers that are arranged in a stacked format, with each layer having a different dopant and doping concentration. The layers are named the Anode, Cathode, Gate, and Reverse-Bias Gate. The most common application of the BT151U-650C 127 is motor control. When an SCR is to be used as a motor control, a DC power source (usually an inverter) supplies an input voltage and an SCR is used to control the current that provides power to the motor. This allows the motor to operate at a controlled, constant speed rather than at random speeds caused by fluctuations in the supply voltage. The BT151U-650C 127 is also commonly used in industrial automation and temperature control systems, thanks to its high switching speed and low thermal terminal sufficiency. In temperature control systems, it is used to switch the supply current on or off depending on the predetermined temperature setpoint. This allows for precise temperature control even when ambient temperatures are changing. For the BT151U-650C 127 to be activated in these applications, a small electrical current is passed through the Gate layer. This voltage is called the \'gate trigger\' voltage and is usually between 1.5V and 2V. When the gate trigger voltage is reached, the BT151U-650C 127 is activated, allowing current to flow between the Anode and Cathode layers. The BT151U-650C 127 can also be used in high-energy applications, such as welding, lighting, and electric heating. In these applications, it is usually used together with other SCRs in a parallel circuit to provide more current than a single SCR can handle while still keeping the voltage relatively low. The BT151U-650C 127 is a versatile and reliable power control device, and as such can be used in a variety of applications requiring fast and precise power control. Its relatively compact size and low cost make it a popular choice for designers looking for a reliable and easy to use power control solution.

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