# HAL204UA

**Hallwee** · Linear Hall Sensors · TO-92S

HAL204UA 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 | VCC | power_in | Input supply voltage with an operating range of 1.65 V to 5.5 V and an absolute maximum supply voltage of 6 V; a bypass capacitor close to the device is recommended. |
| 2 | GND | power_in | Ground reference pin for the device. |
| 3 | OUT | output | CMOS output that turns on (low) when B exceeds Bop and releases when B falls below Brp, with an absolute maximum output voltage of 6 V and output current of 1 mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Hallwee |
| Package | TO-92S |
| 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 (operating) | VDD |  |  | 6 | V |  | 5 |
| Supply Current | IDD |  |  | 1 | mA |  | 5 |
| Output Voltage | VOUT |  |  | 6 | V |  | 5 |
| Output Current | IOUT |  |  | 1 | mA |  | 5 |
| Operating Temperature Range | TA | -40 |  | 85 | °C |  | 5 |
| Storage Temperature Range | TS | -50 |  | 150 | °C |  | 5 |
| ESD Sensitivity |  |  |  | 4000 | V |  | 5 |
| Operating voltage | VDD | 1.65 | 3.3 | 5.5 | V | Operating | 6 |
| Output Low Voltage | VOL |  |  | 0.2 | V | BopS<B IOUT =+0.5mA | 6 |
| Sleep mode time | TSL |  | 500 | 1000 | μS | Operating | 6 |
| ESD Voltage (HBM) | VESD | 4 |  |  | kV | HBM, Mil. Std. 883F method 3015.7 | 7 |
| Operated point, south pole | BOPS | 10 | 35 | 60 | Gs | TA=25℃ | 7 |
| Operated point, north pole | BOPN | -60 | -35 | -10 | Gs | TA=25℃ | 7 |
| Release point, south pole | BRPS | 10 | 23 | 60 | Gs | TA=25℃ | 7 |
| Release point, north pole | BRPN | -60 | -23 | -10 | Gs | TA=25℃ | 7 |

## CAD (KiCad official)

- Symbol: `HAL204UA`
- Footprint: `Package_TO_SOT_THT:TO-92_Inline`
- 3D model: TO-92S (KiCad packages3D, STEP)
- 3D model files: `hal204ua-etched.step` / `hal204ua-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `hal204ua.step` / `hal204ua.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/8757968349102399488) (12 pp, sha256 `cbe7320ae4b72e12`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-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).

[Datasheet PDF](docs/hal204ua-datasheet.pdf)