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HAL253SO

Public Made by Adom

by adom

Hallwee Hall Switches, SOT-23-3L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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HAL253SO

Hallwee · Hall Switches · SOT-23-3L

HAL253SO from Hallwee, in a SOT-23-3L. 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 pin; operating supply range is 2.5 V to 5.5 V (3 V at TA = 25 °C in the DC table), with an absolute maximum of 7 V.
2 GND power_in Ground pin, marked 'Gnd' in the pin definition and listed as pin 2 (ground) in the SOT-23 package notes.
3 OUT output Open-drain output pin; saturation voltage is 0.25 V at IOUT = 1 mA and the absolute maximum output current is 10 mA, with the output latching low in a sufficiently strong south or north pole field and high with no field.

Key specifications

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

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Working voltage VDD VDD 2.5 3 5.5 V 2
Average supply current IDD 1 mA TA=25℃, VDD=3V 2
Output leakage current IOFF 5 uA TA=25℃, VDD=3V 2
Saturation voltage VSAT 0.5 V IOUT=1mA 2
Awake mode time TAW 0.25 uS TA=25℃, VDD=3V 2
Sleep mode time TSL 0.25 uS TA=25℃, VDD=3V 2
Maximum switching frequency FSW 10 KHz 2
Supply voltage (operating) VDD 7 V 2
Supply current IDD 7 mA 2
Output voltage VOUT 5 V 2
Output current IOUT 10 mA 2
Operating temperature range TA -40 85 ℃ 2
Storage temperature range TS -50 150 ℃ 2
ESD withstand voltage VESD 4 KV 2
Operating point BOP -35 35 GS TA=25℃, VDD=3V 3
Release point BRP -25 25 GS TA=25℃, VDD=3V 3
Hysteresis BHYS 10 GS TA=25℃, VDD=3V 3

CAD (KiCad official)

  • Symbol: HAL253SO
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3L (KiCad packages3D, STEP)
  • 3D model files: hal253so-etched.step / hal253so-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); hal253so.step / hal253so.glb are the bare package body.

Provenance

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

  • Datasheet: Hallwee datasheet (4 pp, sha256 f4f4d8e1d880a3e2, retrieved 2026-10-17, 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 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (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