Glossary:DIAC: Difference between revisions
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A DIAC is a 2-terminal electronic component which switches from a non-conducting to a conducting state when a certain voltage is applied, then remains conducting until the current | A DIAC is a 2-terminal electronic component comprising 3 or 4 semiconductor layers which abruptly switches from a non-conducting to a conducting state when a certain voltage is applied, typically in the region of 30V. It then remains conducting until the current falls below a small holding current. Commonly used in conjunction with a [[Glossary:Triac|triac]] in motor speed controllers and older dimmer switches. | ||
Revision as of 09:59, 27 April 2024
A DIAC is a 2-terminal electronic component comprising 3 or 4 semiconductor layers which abruptly switches from a non-conducting to a conducting state when a certain voltage is applied, typically in the region of 30V. It then remains conducting until the current falls below a small holding current. Commonly used in conjunction with a triac in motor speed controllers and older dimmer switches.