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HX49ESO

Public Made by Adom

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

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HX49ESO

HUAXIN · Hall Switches · SOT-23

HX49ESO from HUAXIN, 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 Power supply input; the datasheet specifies an operating supply of 3.0 V to 5.5 V (absolute maximum VDD is -0.3 V to 25 V).
2 Output output Analog output whose voltage is proportional to the applied magnetic field and sits at VDD/2 at B=0; the datasheet limits the output voltage to -0.3 V to 25 V and the output current to 2 mA.
3 GND power_in Ground terminal of the device.

Key specifications

Parameter Value
Manufacturer HUAXIN
Package SOT-23
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
Supply voltage (absolute maximum) VDD -0.3 25 V 4
Output voltage (absolute maximum) VOUT -0.3 25 V 4
Output current (absolute maximum) IOUT 2 mA 4
Operating temperature (absolute maximum table) TA -40 105 ℃ 4
Storage temperature TS -55 165 ℃ 4
ESD rating (静电等级) 4000 V 4
Supply voltage (recommended) VDD 3 5 5.5 V TJ<TJ(Max) 4
Supply current Icc 2.5 6 mA VCC=5.0V, TA=25℃ 4
Output resistance (load) RL 4 kΩ OUT to GND 4
Output high level (5 V supply) VOUT(H) 4 4.3 V VCC=5V,TA=25℃, B=1000Gs 4
Output high level (3.3 V supply) VOUT(H) 2.3 2.6 V VCC=3.3V,TA=25℃, B=1000Gs 4
Output low level (5 V supply) VOUT(L) 0.75 0.8 0.95 V VCC=5V,TA=25℃, B=-1000Gs 4
Output low level (3.3 V supply) VOUT(L) 0.75 0.8 0.95 V VCC=3.3V,TA=25℃, B=-1000Gs 4
Sensitivity (5 V supply) S 2.3 2.9 3.5 mV/Gs VCC=5V,TA=25℃ 4
Sensitivity (3.3 V supply) S 1.1 1.65 2.1 mV/Gs VCC=3.3V,TA=25℃ 4
Power-on time tPO 0.8 µS 4

CAD (KiCad official)

  • Symbol: HX49ESO
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: hx49eso-etched.step / hx49eso-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); hx49eso.step / hx49eso.glb are the bare package body.

Provenance

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

  • Datasheet: HUAXIN datasheet (8 pp, sha256 0800eb968ab158ce, 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