# HAL3144EUA

**Hallwee** · Hall Switches · TO-92S

HAL3144EUA from Hallwee, in a TO-92S. 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; operating range 3.8 V to 30 V, absolute maximum 60 V. |
| 2 | GND | power_in | Ground pin. |
| 3 | OUT | output | Open-drain output pin; absolute maximum 40 V and 50 mA, saturation voltage 0.3 V typ at IOUT=1 mA, pulled up with R1=1.1K in the typical circuit. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Hallwee |
| Package | TO-92S |
| Category | Magnetic Sensors |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `HAL3144EUA`
- Footprint: `Package_TO_SOT_THT:TO-92_Inline`
- 3D model: TO-92S (KiCad packages3D, STEP)
- 3D model files: `hal3144eua-etched.step` / `hal3144eua-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `hal3144eua.step` / `hal3144eua.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/8602997761218797568) (4 pp, sha256 `1256d49370eb286f`, 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` (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/hal3144eua-datasheet.pdf)