| Triacs |
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| • | Characteristics |
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| – | Direct
replacement for mechanical relays |
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| – | Trigger circuit
for full-wave control |
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| – | 4 modes |
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| – | Remains
on in either direction until I < IH |
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| – | Blocking region, I
≈ μamps |
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| – | Small voltage
across Triac when On |
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