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SN74AHCT1G125DBVR

Public Unreviewed

by Ray

UMW Gates, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

Schematic Symbol

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PCB Footprint

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Datasheet

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Contents

README

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SN74AHCT1G125DBVR

UMW · Gates · SOT-23-5

SN74AHCT1G125DBVR from UMW, 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 OE input Active-low output enable (OE, overlined). When low, the buffer passes A to Y; when high, Y is placed in the high-impedance (Hi-Z) 3-state. TTL-compatible input.
2 A input Buffer data input. TTL-voltage compatible (VIH ≥ 2 V, VIL ≤ 0.8 V). Passed to output Y when OE is low.
3 GND power_in Device ground reference (0 V).
4 Y tri_state Buffer 3-state output. Drives ±8 mA at 5 V; follows A when OE is low, Hi-Z when OE is high.
5 VCC power_in Positive supply voltage. Recommended operating range 4.5 V to 5.5 V; absolute max 7.0 V. Bypass with a 100 nF ceramic capacitor close to the pin.

Key specifications

Parameter Value
Manufacturer UMW
Package SOT-23-5
Category Logic
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • SN74AHCT1G125DBVR
  • SN74AHCT1G125DBVRDCK
  • SN74AHCT1G125DBVRDCKR

CAD (KiCad official)

  • Symbol: SN74AHCT1G125DBVR
  • 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
sn74ahct1g125dbvr.step 85 KB You want the bare part, or you mark your own boards.
sn74ahct1g125dbvr-etched.step 2.4 MB You want the part with SN74AHCT1G125DBVR already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 623 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: UMW datasheet (10 pp, sha256 72ab42624be87c31, 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