component
HAL251SO
Public Made by Adomby adom
Hallwee Hall Switches, SOT-23-3L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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HAL251SO
Hallwee · Hall Switches · SOT-23-3L
HAL251SO 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 | Power supply pin, operating range 1.65 V to 5.5 V (absolute maximum -0.5 to 6.0 V), with a 0.1 µF bypass capacitor to Gnd in the typical application. |
| 2 | GND | power_in | Ground pin. |
| 3 | OUT | output | Push-pull output pin, low at the operate point and high at the release point, max 5.0 mA output current, VSAT 0.4 V max at IOUT=2 mA, absolute maximum 6.0 V and 10 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Hallwee |
| Package | SOT-23-3L |
| Category | Magnetic Sensors |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
HAL251SO - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3L (KiCad packages3D, STEP)
- 3D model files:
hal251so-etched.step/hal251so-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);hal251so.step/hal251so.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Hallwee datasheet (6 pp, sha256
46060496a9a5588f, 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-sonnet-5-5(text+vision), consensusclaude-opus-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).
# HAL251SO
**Hallwee** · Hall Switches · SOT-23-3L
HAL251SO 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 | Power supply pin, operating range 1.65 V to 5.5 V (absolute maximum -0.5 to 6.0 V), with a 0.1 µF bypass capacitor to Gnd in the typical application. |
| 2 | GND | power_in | Ground pin. |
| 3 | OUT | output | Push-pull output pin, low at the operate point and high at the release point, max 5.0 mA output current, VSAT 0.4 V max at IOUT=2 mA, absolute maximum 6.0 V and 10 mA. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Hallwee |
| Package | SOT-23-3L |
| Category | Magnetic Sensors |
| Pins | 3 |
## CAD (KiCad official)
- Symbol: `HAL251SO`
- Footprint: `Package_TO_SOT_SMD:SOT-23-3`
- 3D model: SOT-23-3L (KiCad packages3D, STEP)
- 3D model files: `hal251so-etched.step` / `hal251so-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `hal251so.step` / `hal251so.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Hallwee datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8757968321759191040) (6 pp, sha256 `46060496a9a5588f`, 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`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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](docs/hal251so-datasheet.pdf)