74AHC1G126W5-7 from Diodes Incorporated, in a SOT-25. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	OE	input	Output Enable. A HIGH enables the buffer output (Y follows A); a LOW places the output Y into a high-impedance (Hi-Z) state. Schmitt-trigger input tolerant of slow input transitions.
2	A	input	Data Input. Logic level driven through the non-inverting buffer to output Y when OE is HIGH. Schmitt-trigger input; VIH/VIL scale with VCC (e.g. VIH ≥ 3.85V at VCC = 5.5V).
3	GND	power_in	Ground reference (0 V). Continuous current through GND rated to -50 mA absolute maximum.
4	Y	tri_state	Data Output. Non-inverting 3-state buffer output driven from A when OE is HIGH; Hi-Z when OE is LOW. Drive capability ±8 mA at VCC = 5.0V (±4 mA at 3.3V).
5	VCC	power_in	Positive supply voltage, 2.0V to 5.5V operating range (absolute max 6.5V). Continuous current through VCC rated to 50 mA absolute maximum.

Key specifications

Parameter	Value
Manufacturer	Diodes Incorporated
Package	SOT-25
Category	Logic
Pins	5

Ordering variants

74AHC1G126W5-7
74AHC1G126W5-7SE-7

CAD (KiCad official)

Symbol: 74AHC1G126W5-7
Footprint: Package_TO_SOT_SMD:SOT-23-5
3D model: SOT-25 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`74ahc1g126w5-7.step`	85 KB	You want the bare part, or you mark your own boards.
`74ahc1g126w5-7-etched.step`	2.1 MB	You want the part with `74AHC1G126W5-7` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 525 faces against 102 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: Diodes Incorporated datasheet (9 pp, sha256 a9208469722d83d9, retrieved 2026-08-17, tier: manufacturer)
Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF