L2X8E8

Series:	--
Packaging:	Bulk
Part Status:	Obsolete
Triac Type:	Logic - Sensitive Gate
Voltage - Off State:	200V
Current - On State (It (RMS)) (Max):	800mA
Voltage - Gate Trigger (Vgt) (Max):	1.3V
Current - Non Rep. Surge 50, 60Hz (Itsm):	8.3A, 10A
Current - Gate Trigger (Igt) (Max):	10mA
Current - Hold (Ih) (Max):	15mA
Configuration:	Single
Operating Temperature:	-65°C ~ 110°C (TJ)
Mounting Type:	Through Hole
Package / Case:	TO-226-3, TO-92-3 (TO-226AA)
Supplier Device Package:	TO-92

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Introduction to Thyristors - TRIACs

Thyristors are a class of electronic components that are used in many different electrical systems. They are commonly referred to as a semiconductor switch and are used in a variety of applications, from light dimmers to motor control. Thyristors can be divided into two main groups, TRIACs and SCRs, both of which have their own unique characteristics and capabilities. This article will focus on TRIACs and their particular application fields and working principles.

What is a TRIAC?

A TRIAC is short for Triode-Transistor Alternating Current, which is essentially a type of electrically controllable semiconductor device with three terminals. TRIACs are used mainly to control electrical power by switching off and on current as needed. In essence, when a TRIAC is connected to a certain circuit, it can turn power on and off to the connected devices. They are commonly found in switching power supplies and are used to control the voltages of a circuit in order to regulate the flow of power.

TRIAC Application Fields

TRIACs have many uses in a variety of electronic systems, including:

• Light dimmers
• AC-to-DC converters
• Motor speed controllers
• Heater controls
• Logic switching circuits
• DC power supplies
• Heat pumps

TRIAC Working Principle

TRIACs are triggered by applying a low voltage signal to one of the terminals, usually called the gate terminal. Once the voltage is applied, the TRIAC switches on, allowing current to flow between the Anode and Cathode, thus controlling the current flow in the specific circuit. The TRIAC can then be turned off, blocking current between the Anode and Cathode, by either removing the voltage or, in some situations, by reversing the polarity of the voltage source.The TRIAC\'s ability to control current flow, both forward and reverse, is what makes it such an important component in many electrical systems. It also makes it possible to control the leading and lagging phases of power in AC circuits, which is often necessary when regulating motor speed and similar applications.

Conclusion

In conclusion, TRIACs are an essential component of many electronic systems, and their ability to efficiently control current flow makes them invaluable in a variety of applications, from dimmers to motor speed controllers. This article has outlined the application fields and working principles of TRIACs, providing a basic understanding of this important component.

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