What this part is and where it fits
The MAX972EPA+ from Maxim Integrated is a dual general-purpose comparator that integrates a voltage reference on-chip. That built-in reference means you skip an external reference IC and its associated resistors — saves board space and simplifies the BOM for threshold-detection circuits like battery monitors, window comparators, and over-voltage/under-voltage lockouts. Two open-drain outputs let you wire-OR multiple comparators or drive logic inputs directly. It comes in an 8-DIP through-hole package, so it's a natural fit for breadboard prototyping, legacy through-hole designs, or any board where rework simplicity matters — a DIP is easy to socket or swap under a hot-air station.
Key ratings and what they mean for your BOM
The quiescent current maxes out at 4 µA. That's the entire chip — both comparators plus the reference — idling.
Lifecycle and sourcing reality
No end-of-life notice, no last-time-buy clock ticking. The ROHS3 compliance covers current RoHS requirements. For a BOM line that needs a through-hole comparator with a reference, this is a low-risk, long-availability pick.