Fixed 9 V output — what the standard regulator rating means for fit
The HA178L09UA-TL-E: This is a fixed positive 9 V linear regulator, standard 3-terminal type — the output is factory-trimmed to 9 V with no external resistor divider needed. The Bulk package (loose tube or tray, not tape-and-reel) suits low-volume assembly or prototyping where reel feed is not required.
RoHS3 compliance — regulatory acceptance without documentation chase
RoHS3 compliant — exempt from the ten restricted substances including the four phthalates added in EU 2015/863.