Q8016LH4TP

Series:	--
Packaging:	Tube
Part Status:	Active
Triac Type:	Alternistor - Snubberless
Voltage - Off State:	800V
Current - On State (It (RMS)) (Max):	16A
Voltage - Gate Trigger (Vgt) (Max):	1.3V
Current - Non Rep. Surge 50, 60Hz (Itsm):	167A, 200A
Current - Gate Trigger (Igt) (Max):	35mA
Current - Hold (Ih) (Max):	50mA
Configuration:	Single
Operating Temperature:	-40°C ~ 125°C (TJ)
Mounting Type:	Through Hole
Package / Case:	TO-220-3 Isolated Tab
Supplier Device Package:	TO-220 Isolated Tab

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Introduction to Thyristors - TRIACs

Thyristors are a type of semiconductor device with two or more electrodes. Commonly known as solid state switches, thyristors offer many advantages over mechanical switches, such as high switching speed, low power consumption, improved reliability and durability. Thyristors are generally used to control current in AC circuits, allowing both positive and negative voltage to flow through the device, which can be activated by applying a voltage across its terminals. Thyristors form the basis of a family of devices known as TRIACs, which stands for “triode for alternating current”. TRIACs are essentially three-terminal versions of thyristors and function as bidirectional switching devices. This means they can be used to control power in both directions, making them ideal for controlling AC circuits. They are ideal for applications where an on/off switch or a manually operated switch is not suitable or feasible.

Q8016LH4TP Application Field and Working Principle

The Q8016LH4TP is a 4-terminal, bidirectional TRIAC, manufactured by STMicroelectronics. The device can be used in AC circuits requiring a large amount of power. The Q8016LH4TP has a turn-on (gate current) of 0.2mA and a forward current of 16A. It is designed to limit the amount of current flow by triggering or breaking off at a specified current threshold. Its turn-off (gate voltage) is 6V, so it must be kept in a breakdown voltage of 3V to 6V. The four terminals of the Q8016LH4TP are, from left to right; Gate (G), Intermediary (I), Anode 1 (A1), and Anode 2 (A2). The G and I terminals are coupled together and are used to control the device. A voltage signal can be applied at the G terminal and current will flow between the two anodes once the forward voltage between A1 and A2 is greater than the breakover voltage, typically 0.8V. In order for current to begin flowing, the gate current must exceed the holding current of the device. The Q8016LH4TP is ideal for applications that require a high power switch, such as lighting ballasts, AC motor control and AC power control. It is an ideal solution for those looking for a cost effective, reliable, and accurate means to regulate AC power.

Conclusion

In conclusion, the Q8016LH4TP is an ideal solution for applications requiring a high power switch that needs to control AC power. It is a four-terminal bidirectional TRIAC from STMicroelectronics. With a turn-on of 0.2mA, a forward current of 16A and a turn-off of 6V, it can be used for applications such as lighting ballasts, AC motor control and AC power control.

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