T835-800B — Snubberless 800V, 8A Triac in DPAK
The STMicroelectronics T835-800B is an Alternistor (Snubberless) triac rated for 800 V off-state voltage and 8 A RMS on-state current, housed in a surface-mount DPAK (TO-252) package. The Snubberless construction means it can switch inductive loads like small motors, relays, or solenoids without the external RC snubber network that a standard triac would require — a real BOM simplification.
The DPAK (TO-252) is a surface-mount package with two leads plus a tab (the tab is the main terminal). The tab is electrically live — ensure the PCB copper pour or heatsink is either isolated or at the same potential as MT2. The package code in the supplier device field is DPAK; the case style is TO-252-3.