Active production — BOM-fit note
The SN74S133DR: The device is supplied in a Bulk package, which typically means tube or tray delivery rather than tape-and-reel — a detail to confirm with your assembly house if the line expects reel-fed pick-and-place.
RoHS compliance — BOM review flag
Texas Instruments lists the SN74S133DR as RoHS non-compliant. This means the part contains lead (Pb) above the 0.1% threshold and is not exempt under current RoHS annexes — a critical check for any BOM that must ship into RoHS-regulated markets.