BT134-600E,127

Series:	--
Packaging:	Tube
Part Status:	Active
Triac Type:	Logic - Sensitive Gate
Voltage - Off State:	600V
Current - On State (It (RMS)) (Max):	4A
Voltage - Gate Trigger (Vgt) (Max):	1.5V
Current - Non Rep. Surge 50, 60Hz (Itsm):	25A, 27A
Current - Gate Trigger (Igt) (Max):	10mA
Current - Hold (Ih) (Max):	15mA
Configuration:	Single
Operating Temperature:	125°C (TJ)
Mounting Type:	Through Hole
Package / Case:	SOT-82
Supplier Device Package:	SOT-82-3
Base Part Number:	BT134

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Thyristors - TRIACs

A TRIAC (Triode for Alternating Current) is a specifically structured thyristor-type semiconductor that acts as a gating device, enabling or disabling current flow in an AC power circuit. The BT134-600E,127 is a common TRIAC-based thyristor, containing three pn columns connected head-to-tail in an alternating manner. It is especially designed for use in mains-voltage-powered industrial applications such as heaters, lights, and motors.

Working Principle

The main principle today used by TRIAC-based thyristors is a turn-on switching process based on the electrical characteristics of a pn junction. When voltage is applied to a TRIAC, the electrons from the p-type material move towards the n-type material, and create a low-resistance channel for current. This is referred to as conductance and allows the thyristor to switch very quickly. When the voltage is no longer applied, the channel collapses, abruptly halting the current flow. By varying the applied voltage regulatory over time, TRIACs can offer wide dynamic range regulation of AC power, allowing the user to adjust the amount of power provided by the device.

Application Fields

The BT134-600E,127 is designed for applications that need high current loads and reliable switching performance. The most common applications of TRIAC thyristors are consumer home appliance control (such as light dimmers, power controllers, and other devices that regulate the flow of current in a home), industrial control, and motor control, usually relying on a combination of mechanical and TRIAC-thyristor-based tinkering.

In consumer home appliance control, the BT134-600E,127 is used in dimmers, fans, and other devices that require AC power control. This Triac thyristor is well-suited for applications that require fast switch-on and switch-off times, with high speed and low cost. Its dynamic range regulation of AC power also makes it a favored choice for motor control. In industrial control, it is used for industrial process regulation and control, mainly used for switching motors and machines on and off in various production processes.

The BT134-600E,127 is also often used in motor control applications, such as in controlling the speed of electric motors, induction coils, and generators. Its fast response time and reliable switching performance make it ideal for applications that require precise and speedy regulation of AC power. Finally, the BT134-600E,127 is used in surge protection and lightning control, due to its capability of withstanding high voltages, as well as its fast response times.

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