74LVC1G125QSE-7 from Diodes Incorporated, in a SOT-353. 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	Active-LOW output enable. When LOW, the buffer drives Y from A; when HIGH, Y enters a high-impedance (3-state) state. Accepts inputs up to 5.5V regardless of VCC.
2	A	input	Data input to the non-inverting buffer. Propagates to Y when OE is LOW. Input is 5.5V-tolerant regardless of VCC level.
3	GND	power_in	Ground reference (0V) for the device.
4	Y	tri_state	3-state data output. Drives the buffered logic level of A when OE is LOW; enters high-impedance when OE is HIGH. Rated for ±24mA drive at VCC = 3.3V.
5	VCC	power_in	Supply voltage input. Operating range 1.65V to 5.5V (data retention only down to 1.5V). Bypass with a local decoupling capacitor to GND.

Key specifications

Parameter	Value
Manufacturer	Diodes Incorporated
Package	SOT-353
Category	Logic
Pins	5

Ordering variants

74LVC1G125QSE-7
74LVC1G125QSE-7QW5-7

CAD (KiCad official)

Symbol: 74LVC1G125QSE-7
Footprint: Package_TO_SOT_SMD:SOT-353_SC-70-5
3D model: SOT-353 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Diodes Incorporated datasheet (10 pp, sha256 b8845ca55c0f09ce, retrieved 2026-08-17, tier: lcsc)
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