Tech-dat/acturator-dat/TRIAC-dat/TRIAC-dat.md
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- compare to - [[SSR-relay-dat]]
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+# TRIAC Comparison Table
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+| Feature | BT136 | BTA12 | BTA16 | BT138 |
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+|-----------------------------|------------------------|------------------------|------------------------|------------------------|
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+| **Maximum Voltage (V)** | 600V | 600V | 600V | 600V |
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+| **Maximum Current (A)** | 4A | 12A | 16A | 12A |
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+| **Gate Trigger Current (Igt)** | 5mA | 35mA | 35mA | 10mA |
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+| **Holding Current (Ih)** | 2mA | 25mA | 25mA | 15mA |
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+| **Thermal Resistance (Rth)**| 75°C/W | 60°C/W | 60°C/W | 75°C/W |
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+| **Package Type** | TO-220 | TO-220 | TO-220 | TO-220 |
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+| **Applications** | General-purpose AC switching | Light dimmers, motor controls | High-power AC switching | General-purpose AC switching |
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## TRIAC
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A TRIAC is a bidirectional, three-electrode AC switch that allows electrons to flow in either direction.
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It is the equivalent of two SCRs connected in a reverse-parallel arrangement with gates connected to each other. A TRIAC is triggered into conduction in both directions by a gate signal like that of an SCR.