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Contents

README

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HAL1254SSO

Hallwee · Hall Switches · SOT-23

HAL1254SSO from Hallwee, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 VDD power_in Supply voltage; operating range 2.0 V to 5.5 V, absolute maximum −0.3 V to 6 V.
2 OUT output CMOS digital output (active-low when south-pole field exceeds BOP); VOH ≥ VDD−0.2 V and VOL ≤ 0.2 V at IOUT = 0.5 mA; max source and sink current 0.5 mA.
3 GND power_in Ground reference; average quiescent supply current 2.4 µA typical (VOUT pin floating).

Key specifications

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

CAD (KiCad official)

  • Symbol: HAL1254SSO
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: hal1254sso-etched.step / hal1254sso-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); hal1254sso.step / hal1254sso.glb are the bare package body.

Provenance

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

  • Datasheet: Hallwee datasheet (5 pp, sha256 a3ad40821c06a75c, retrieved 2026-09-29, 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: 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