Bulk packaging — what it means for your line
The AC10DSMA-AZ: This part ships in Bulk (tube or tray), not tape-and-reel. If your pick-and-place feeder expects embossed tape, you'll need to hand-place or arrange a tape-and-reel conversion. For through-hole or hand-assembly runs, Bulk is straightforward — no reel charge, easier kitting for low-volume builds.
Closest functional second-source: AC10DGM-AZ
The AC10DGM-AZ shares the same 400 V, 10 A ratings and Bulk package. The 'DS' vs 'DG' suffix likely indicates a different gate sensitivity or package variant (isolated vs non-isolated tab, or different case style). If your design's thermal and isolation requirements match the DGM variant, it's a drop-in swap for dual-sourcing. Verify the gate trigger current and isolation voltage against your drive circuit before committing.