The Texas Instruments SN74LVC1G125DBVR is a single-bit, non-inverting buffer with a 3-state output, part of the 74LVC logic family. The output goes high-impedance when the output-enable pin is pulled high, letting multiple drivers share a line without contention.
Each output sinks or sources 32 mA — enough to drive a handful of CMOS inputs, an LED indicator, or a short PCB trace. The 3-state output lets you wire-OR multiple buffers on the same net, handy for shared data or control lines.
Temperature grade and package — field-swap friendly
Comes in a SOT-23-5 package — five pins, small enough to fit tight layouts but big enough to hand-solder with a fine tip. No lab bench needed; I have swapped these on site with a standard iron and a steady hand.
It is a mainstream 74LVC part with broad distribution coverage.