component
HAL1881SO
Public Made by Adomby adom
Hallwee Linear Hall Sensors, SOT-23-3L. Datasheet-verified pinout, 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
markdownHAL1881SO
Hallwee · Linear Hall Sensors · SOT-23-3L
HAL1881SO from Hallwee, in a SOT-23-3L. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VCC | power_in | Power supply voltage input; operating range 2.5 V to 24 V, absolute maximum 28 V, maximum supply current 50 mA. |
| 2 | GND | power_in | Ground reference; power return pin. |
| 3 | OUT | output | Open-drain output; output low voltage ≤0.5 V at IOUT = 20 mA, absolute maximum output voltage 28 V and output current 50 mA; requires external pull-up resistor (typical application uses 1.1 kΩ). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Hallwee |
| Package | SOT-23-3L |
| Category | Magnetic Sensors |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
HAL1881SO - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3L (KiCad packages3D, STEP)
- 3D model files:
hal1881so-etched.step/hal1881so-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);hal1881so.step/hal1881so.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Hallwee datasheet (4 pp, sha256
0cb4fe113c80667c, retrieved 2026-09-21, 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 0.2, primaryclaude-sonnet-4-6(vision), consensusclaude-opus-4-7(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).