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HX49ESO
Public Made by Adomby adom
HUAXIN Hall Switches, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownHX49ESO
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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);hx49eso.step/hx49eso.glbare 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, primaryclaude-haiku-5-5(text), consensusclaude-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).