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Triacs are a very compact solution for switching loads on AC power lines.

Not limited by electromechanical ageing contingencies, triacs have a much longer lifespan compared to relays with circuits respecting specification boundaries.

With a voltage range from 600 to 800 V and up to 1200 V for certain industrial devices, ST's portfolio covers medium-power AC loads with 1 to 50 A triacs.

With a range of driveable AC loads from 120 to 240 V, the list of circuits benefiting from ST triacs includes dimmers, all types of AC mains on-off switches, home or office copy/printer appliances, as well as industrial motor starters or SSRs, gardening tools, automated irrigation systems and a wide variety of automation controllers for factories, buildings and homes.


Featured Products

Ease your transition to surface-mount Triacs with our extended D²PAK portfolio

ST further extends its D²PAK offer for Triacs, ideal for compact designs. With parts ranging from 8 to 30 A, this Triac D²PAK offer is particularly suited for home and factory automation, allowing innovative designs with isolated metal substrate (IMS) and direct-bonded copper boards.
Discover our High-temperature Triacs and Standard and Snubberless Triacs in D²PAK.

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