T1235-600G — Snubberless™ Alternistor TRIAC for inductive-load switching
The T1235-600G is a 600 V, 12 A RMS TRIAC from ST's Snubberless™ series, configured as an Alternistor with a single output. It switches AC loads without the external RC snubber normally required for inductive commutation — the device's internal turn-off characteristic handles the dV/dt stress. Rated junction temperature spans -40°C to 125°C, suiting it for motor drives, pump controls, and heating elements in industrial and appliance environments.
Sourcing and lifecycle — active, no LTB watch
The T1235-600G carries an Active product status with ROHS3 compliance. No last-time-buy or end-of-life notice is on record. For dual-sourcing or a through-hole alternative, the BTA06-600SRG is a 600 V, 6 A sensitive-gate TRIAC in a through-hole package — same temperature range but lower current rating and different gate sensitivity; verify the load current and gate drive before substituting. The T1235-600G is sourced and quoted to order through independent distribution; availability and current pricing are confirmed at quote time.
Package and assembly note
Supplied in Tube, surface-mount D2PAK (TO-263-3) with two leads plus a tab. The tab is the main thermal path and is electrically common with the MT2 terminal — account for this in the PCB layout if multiple devices share a heatsink. The D2PAK footprint matches standard reflow profiles; the large tab pad needs a thermal via array under the component to pull heat into the board copper.