SN74AHCT1G02DBVR from Texas Instruments, in a SOT-23-5. 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	A	input	Logic input A of the 2-input NOR gate. TTL-voltage compatible (VIH min 2 V, VIL max 0.8 V). Input clamp current limited to -20 mA per absolute maximum ratings.
2	B	input	Logic input B of the 2-input NOR gate. TTL-voltage compatible (VIH min 2 V, VIL max 0.8 V). Unused inputs must be tied to VCC or GND.
3	GND	power_in	Ground reference pin (0 V). Return for VCC supply current and all logic-low output current.
4	Y	output	NOR gate output, Y = NOT(A OR B). Push-pull CMOS output with ±8 mA drive at 5 V. VOH ≥ 3.8 V and VOL ≤ 0.44 V at IO = ±8 mA, VCC = 4.5 V.
5	VCC	power_in	Positive supply voltage input, 4.5 V to 5.5 V recommended (7 V absolute max). ICC ≤ 10 µA quiescent. Bypass with a 0.1 µF ceramic capacitor placed close to the pin.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SOT-23-5
Category	Logic
Pins	5

Ordering variants

Same part, different packaging or reel option.

SN74AHCT1G02DBVR
SN74AHCT1G02DBVRDBVT
SN74AHCT1G02DBVRDCKR
SN74AHCT1G02DBVRDCKT

CAD (KiCad official)

Symbol: SN74AHCT1G02DBVR
Footprint: Package_TO_SOT_SMD:SOT-23-5
3D model: SOT-23-5 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`sn74ahct1g02dbvr.step`	85 KB	You want the bare part, or you mark your own boards.
`sn74ahct1g02dbvr-etched.step`	2.4 MB	You want the part with `SN74AHCT1G02DBVR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 613 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: Texas Instruments datasheet (24 pp, sha256 5cc7a05fa66442b9, 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