component

ME431NAXG

Public Unreviewed

by Ray

MICRONE Voltage Reference, SOT-23. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Symbol & Footprint

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Contents

README

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ME431NAXG

MICRONE · Voltage Reference · SOT-23

ME431NAXG from MICRONE, in a SOT-23. 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 passive Anode terminal of the shunt regulator (system ground / low side of the internal shunt element). Sinks the regulated cathode current back to the return rail.
2 K passive Cathode terminal of the shunt regulator (high side). Sinks 1 mA to 100 mA when the reference conducts; withstands up to 36 V (abs-max 40 V) with respect to the anode.
3 REF input Reference / control input to the internal error amplifier's non-inverting input. Regulates the cathode-anode voltage such that V(REF) = VREF (typ. 2.500 V, ±0.4% for the 'A' grade). Reference input current 0.7 µA typ (3 µA max); abs-max IREF = 10 mA.

Key specifications

Parameter Value
Manufacturer MICRONE
Package SOT-23
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • ME431NAXG
  • ME431NAXGNBXG
  • ME431NAXGBXG
  • ME431NAXGATG
  • ME431NAXGBTG
  • ME431NAXGATBG
  • ME431NAXGBTBG

CAD (KiCad official)

  • Symbol: ME431NAXG
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
me431naxg.step 59 KB You want the bare part, or you mark your own boards.
me431naxg-etched.step 1.3 MB You want the part with ME431NAXG already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 342 faces against 69 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: MICRONE datasheet (12 pp, sha256 60082e69a25c0be4, 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