600 V, 12 A Snubberless™ alternistor in D2PAK
The STMicroelectronics T1235-600G-TR is a Snubberless™ alternistor triac rated for 600 V off-state voltage and 12 A RMS on-state current, housed in a surface-mount D2PAK (TO-263-3) package.
The D2PAK (TO-263-3) footprint is the same as a standard D²Pak with two leads plus the tab. The tab is the main terminal (MT2) and carries the full load current. The surface-mount package suits reflow soldering; the Tape & Reel (TR) variant is the ordering code for automated assembly. The Cut Tape (CT) option is available for prototype or low-volume builds.
The Snubberless™ series is an established ST product line with multiple current ratings sharing the same TO-263 footprint, so if a future design needs a higher current, the T2535-600G-TR (25 A) or T3035H-6G-TR (30 A) are pin-compatible surface-mount alternatives within the same series — both also Snubberless™ alternistors in D2PAK.