Low power TRIACs are used in many applications such as Light Dimmer s, speed controls for Electric Fan s and other Electric Motor s, and in the modern computerized control circuits of many household Small and Major Appliance s. However, when used with Inductive loads such as electric fans, care must be taken to assure that the TRIAC will turn off correctly at the end of each half-cycle of the ac power. A Snubber circuit is often used to assist this turn off. Snubber circuits are also used to prevent premature triggering. For higher-powered, more-demanding loads, two SCRs in ''inverse-parallel'' may be used instead of one TRIAC. Because each SCR will have an entire half-cycle of reverse polarity voltage applied to it, turn-off of the SCRs is assured, no matter what the character of the load.
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