What this reference is and where it fits
The Maxim Integrated MAX6018BEUR12+T is a series voltage reference with a fixed 1.263 V output, ±0.4% tolerance, and 6 µA supply current.
1.263 V fixed output — no adjustment option
The output is factory-trimmed to 1.263 V and is not adjustable.
6 µA supply — battery-life math
Quiescent current is 6 µA. The reference sources up to 1 mA output current.
Temperature drift — 50 ppm/°C
Temperature coefficient is 50 ppm/°C over -40°C to 85°C.
SOT-23-3 — footprint and assembly notes
The part comes in a standard SOT-23-3 package (also known as TO-236-3 or SC-59). Three pins: input, output, and ground. No external capacitor is required for stability — the series architecture is inherently stable with any capacitive load up to the rated output current. The small body means hand-soldering is possible with a fine tip, but for production reflow, a standard lead-free profile works.
Lifecycle and sourcing
The MAX6018BEUR12+T is listed as Active with ROHS3 compliance. No pin-compatible second source is listed in the record.