74AHCT1G126SE-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	Output Enable. Active-high 3-state control: when HIGH, the buffer drives Y from A; when LOW, Y enters high-impedance (Hi-Z). TTL-compatible input (VIH ≥ 2.0V, VIL ≤ 0.8V).
2	A	input	Data Input. Non-inverting buffer input; when OE is HIGH, the logic level on A is driven onto Y. TTL-compatible input (VIH ≥ 2.0V, VIL ≤ 0.8V) with Schmitt-trigger action tolerating slow input rise/fall.
3	GND	power_in	Ground reference (0V). Continuous current through GND limited to -50 mA absolute maximum.
4	Y	tri_state	Data Output. Non-inverting 3-state buffer output driven by A when OE is HIGH; Hi-Z when OE is LOW. Rated ±8 mA drive at VCC = 5.0V (VOH ≥ 3.94V typ, VOL ≤ 0.36V typ at 25°C).
5	VCC	power_in	Positive supply voltage. Recommended operating range 4.5V to 5.5V (absolute maximum -0.5V to 6.5V). Typical quiescent supply current ICC ≈ 1 μA at 5.5V.

Key specifications

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

Ordering variants

74AHCT1G126SE-7
74AHCT1G126SE-7W5-7

CAD (KiCad official)

Symbol: 74AHCT1G126SE-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 (9 pp, sha256 ff02d445a69466d5, 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