component
HAL9303SO
Public Made by Adomby adom
Hallwee Linear Hall Sensors, SOT-23-3L. 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
markdownHAL9303SO
Hallwee · Linear Hall Sensors · SOT-23-3L
HAL9303SO 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; the datasheet gives an operating voltage of 1.6 V to 5.5 V and an absolute maximum supply voltage of 7 V. |
| 2 | Gnd | power_in | Ground pin for the sensor. |
| 3 | Out | output | Linear Hall sensor output; the output voltage is proportional to the magnetic field and equals half the supply voltage at zero field, with the output current limit listed as 0.2 mA in the absolute maximum ratings. |
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 |
|---|---|---|---|---|---|---|---|
| 电源电压(工作时) | VDD | 7 | V | 工作时 | 2 | ||
| 输出电流 | IDD | 0.2 | mA | 2 | |||
| 工作温度范围 | TA | -40 | 150 | ℃ | 2 | ||
| 储存温度范围 | TS | -65 | 150 | ℃ | 2 | ||
| 工作电压 | VDD | 1.6 | 5.5 | V | TA=25℃ | 2 | |
| 电源电流 | IDD | 0.8 | 1.1 | mA | VDD=1.8V | 2 | |
| 灵敏度 | 1.7 | 2.1 | 2.9 | mV/GS | 3 | ||
| 线性度 | -1.5 | 1.5 | 量程的% | 3 | |||
| 静态输出电压 | 1.5 | 1.8 | V | B=0Gs VDD=3.3V | 3 | ||
| 零位漂移 | -0.1 | 0.1 | %/℃ | 3 | |||
| 最高输出电压 | 3.2 | 3.3 | V | 2 | |||
| 最低输出电压 | 0 | 0.1 | V | 2 |
CAD (KiCad official)
- Symbol:
HAL9303SO - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3L (KiCad packages3D, STEP)
- 3D model files:
hal9303so-etched.step/hal9303so-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);hal9303so.step/hal9303so.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Hallwee datasheet (4 pp, sha256
d6a4dc351b69d735, retrieved 2026-10-18, 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).