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Contents

README

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HAL250SO

Hallwee · Hall Switches · SOT-23-3L

HAL250SO from Hallwee, 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 pin, operating range 1.8V to 5.25V, typical supply current 0.92 µA.
2 GND power_in Ground reference pin.
3 Out output Push-pull output that goes low when magnetic field strength exceeds operation point (BOP ±33 GS) and returns high when below release point (BRP ±20 GS).

Key specifications

Parameter Value
Manufacturer Hallwee
Package SOT-23-3L
Category Magnetic Sensors
Pins 3

CAD (KiCad official)

  • Symbol: HAL250SO
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3L (KiCad packages3D, STEP)
  • 3D model files: hal250so-etched.step / hal250so-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); hal250so.step / hal250so.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Hallwee datasheet (4 pp, sha256 bedfd94c2d44ac3a, retrieved 2026-09-21, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF