component

MH253ESO

Public Made by Adom

by adom

MST Magnesensor Tech MST Hall Sensor, SOT-23-3L. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs mh253eso: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 1mo ago
mh253eso-etched.fit.json mh253eso: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
mh253eso-etched.glb mh253eso: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
mh253eso-etched.step mh253eso: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
mh253eso.glb Publish 0.1.0 · Ray 1mo ago
mh253eso.kicad_mod Publish 0.1.0 · Ray 1mo ago
mh253eso.kicad_sym Publish 0.1.0 · Ray 1mo ago
mh253eso.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect and oval pad as a SQUARE EAGLE smd; this carries the real pad shape across (0 -> 3 rounded pads) and stops dropping geometry drawn on KiCad User.N layers. Attributes, connects, pads and the pin-1 marker are gated against decreasing and are unchanged. · Ray 1mo ago
mh253eso.step Publish 0.1.0 · Ray 1mo ago
package.json Publish 0.2.0 · Ray 1mo ago
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 1mo ago
page.json mh253eso: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray 16h ago
README.md mh253eso: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 19d ago

MH253ESO

MST Magnesensor Tech MST · Hall Sensor · SOT-23-3L

MH253ESO from MST Magnesensor Tech MST, in a SOT-23-3L. 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 VDD power_in Supply voltage input, 2.5 V to 6 V operating range (7 V absolute max). Typical supply current 2.6 mA. Reverse voltage protection not included; a 100 Ω series resistor is recommended for reverse protection.
2 Output output Open-drain digital output. Pulls low (VDSON <= 400 mV at 10 mA) when magnetic field exceeds operate point (
3 GND power_in Ground reference pin for the device.

Key specifications

Parameter Value
Manufacturer MST Magnesensor Tech MST
Package SOT-23-3L
Category Sensor
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • MH253ESO
  • MH253ESOESQ
  • MH253ESOEUA
  • MH253ESOKUA

CAD (KiCad official)

  • Symbol: MH253ESO
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3L (KiCad packages3D, STEP)
  • 3D model files: mh253eso-etched.step / mh253eso-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mh253eso.step / mh253eso.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
mh253eso.step 59 KB You want the bare part, or you mark your own boards.
mh253eso-etched.step 1.6 MB You want the part with MH253ESO already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 386 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: MST Magnesensor Tech MST datasheet (5 pp, sha256 9d3b31b816690eaa, 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