component

HEF4081BT

Public Made by Adom

by adom

Nexperia Gates, SOIC-14. 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

markdown

HEF4081BT

Nexperia · Gates · SOIC-14

HEF4081BT from Nexperia, in a SOIC-14. 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 1A input Gate 1 input A. CMOS logic input; VIH ≥ 3.5 V @ VDD=5 V, VIL ≤ 1.5 V @ VDD=5 V. Input leakage ±0.1 µA typ. Unused inputs must be tied to VDD or VSS.
2 1B input Gate 1 input B. CMOS logic input; same electrical characteristics as 1A. Unused inputs must be tied to VDD or VSS.
3 1Y output Gate 1 output; 1Y = 1A AND 1B. Fully buffered CMOS output, VOH ≥ 4.95 V and VOL ≤ 0.05 V @ VDD=5 V with
4 2Y output Gate 2 output; 2Y = 2A AND 2B. Fully buffered CMOS output with standardized symmetrical drive.
5 2A input Gate 2 input A. CMOS logic input; unused inputs must be tied to VDD or VSS.
6 2B input Gate 2 input B. CMOS logic input; unused inputs must be tied to VDD or VSS.
7 VSS power_in Ground reference (0 V). All voltages in the datasheet are referenced to VSS.
8 3A input Gate 3 input A. CMOS logic input; unused inputs must be tied to VDD or VSS.
9 3B input Gate 3 input B. CMOS logic input; unused inputs must be tied to VDD or VSS.
10 3Y output Gate 3 output; 3Y = 3A AND 3B. Fully buffered CMOS output.
11 4Y output Gate 4 output; 4Y = 4A AND 4B. Fully buffered CMOS output.
12 4A input Gate 4 input A. CMOS logic input; unused inputs must be tied to VDD or VSS.
13 4B input Gate 4 input B. CMOS logic input; unused inputs must be tied to VDD or VSS.
14 VDD power_in Positive supply voltage. Recommended operating range 3 V to 15 V; absolute max 18 V. Typical supply current IDD ≤ 1 µA @ VDD=15 V for static inputs.

Key specifications

Parameter Value
Manufacturer Nexperia
Package SOIC-14
Category Logic
Pins 14

Ordering variants

Same part, different packaging or reel option.

  • HEF4081BTT

CAD (KiCad official)

  • Symbol: HEF4081BT
  • Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
  • 3D model: SOIC-14 (KiCad packages3D, STEP)
  • 3D model files: hef4081bt-etched.step / hef4081bt-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); hef4081bt.step / hef4081bt.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
hef4081bt.step 195 KB You want the bare part, or you mark your own boards.
hef4081bt-etched.step 2.1 MB You want the part with HEF4081BT already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 541 faces against 237 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: Nexperia datasheet (11 pp, sha256 98a345e3e99a74a2, 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