16TTS08S

Current - Hold (Ih) (Max):	100mA
Base Part Number:	16TTS*
Supplier Device Package:	D2PAK
Package / Case:	TO-263-3, D²Pak (2 Leads + Tab), TO-263AB
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
SCR Type:	Standard Recovery
Current - Non Rep. Surge 50, 60Hz (Itsm):	200A @ 50Hz
Current - Off State (Max):	500µA
Series:	--
Current - On State (It (RMS)) (Max):	16A
Current - On State (It (AV)) (Max):	10A
Voltage - On State (Vtm) (Max):	1.4V
Current - Gate Trigger (Igt) (Max):	60mA
Voltage - Gate Trigger (Vgt) (Max):	2V
Voltage - Off State:	800V
Part Status:	Obsolete
Packaging:	Tube

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Thyristors - SCRs

Thyristors, commonly referred to as silicon controlled rectifiers (SCRs), are three-terminal, silicon-based switches that are widely used to control the amount of electrical energy passing through a circuit. They function as electronic switches and are used in applications such as power control, switching and motor speed control. The 16TTS08S is a type of SCR that has a wide variety of applications, outlined in this article alongside its working principle. A 16TTS08S SCR is a bidirectional two-quadrant thyristor (BTQT) gate turn-off (GTO) thyristor that features standard specifications such as a breakdown voltage of 800V (V Br = 800V), an average on-state current of 16A (I T(AV) = 16A), and a DC gate-trigger current of 7.0mA (I G(T) = 7.0mA).The 16TTS08S is largely employed in power control circuits, power factor correction (PFC) circuits and motor speed control applications, owing to its ability to switch high voltage and large current. Its use in such applications is enhanced by its low price and small size. This makes it perfect for use in consumer electronic equipment and industrial machinery.Working PrincipleThe 16TTS08S functions as an electronic switch, in which it turns on and off as triggered by a low power signal. The SCR will be in the off-state when no external current is applied to the gate, blocking the current through the anode and cathode. This can only be changed when a triggering voltage is applied to the gate, allowing a low current (pulses) to flow through the SCR, which brings it into the on-state. It will remain in the on-state until the voltage applied to the cathode is sufficiently high enough to be equal or greater than the forward break-over voltage (V BO ) . To turn off the SCR, the gate must be pulsed again, draining the stored charges in the junction of the device and allowing it to switch off. This avoiding the triggering voltage being continuously applied, as this could cause overheating of the device. Common ApplicationsSince thyristors act as electronic switches, they can be used to switch high voltage and large currents. With the 16TTS08S, this makes it a perfect low-cost device to use in a variety of common applications. Power Factor Correction (PFC)In circuits that have inductive loads, the current supplied to the load lags behind the voltage supplied to the load and this reduces the power factor. This can be corrected using a power factor correction circuit that is powered by a 16TTS08S device, which will help in regulating the amount of current used, improving the power factor.Motor Speed ControlVariations in the speed of a motor can be controlled by the application of a thyristor in a logic circuit. When a load is placed on a motor, the torque acting on the motor shaft increases, slowing the speed of the motor. when a 16TTS08S is employed in the circuit, it will help regulate the amount of current supplied to the motor, allowing for a more precise control of the speed of the motor.Power ControlA 16TTS08S is usually employed in AC power control, as it allows for regulation of the amount of power that reaches the load from an AC line, without interrupting it. It is also used to control the amount of energy used in a circuit, by cutting off the supply whenever it is not needed. ConclusionThe 16TTS08S is a low cost SCR thyristor, commonly employed in power control, motor speed control and power factor correction (PFC) circuits. Its three-terminal design allows it to be used as an electronic switch, making it perfect for use in consumer electronic equipment and industrial machinery.

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