# HAL248KTGSO

**Hallwee** · Hall Switches · SOT-23-3L

HAL248KTGSO 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 supply of 2.5 to 5.5 V and an absolute maximum supply voltage of 7 V. |
| 2 | GND | power_in | Ground pin for the device. |
| 3 | OUT | output | Open-drain output that latches low when a south or north magnetic pole on the marked face exceeds the operating point (BOP) and latches high when the field falls below the release point (BRP) or is absent. |

## 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 |
|---|---|---|---|---|---|---|---|
| Operating voltage (VDD) | VDD | 2.5 | 3 | 5.5 | V |  | 2 |
| Supply current (average, operating) | IDD |  | 3 |  | uA | 工作时 平均值 | 2 |
| Output current | IOUT |  | 1 |  | mA | 工作时 | 2 |
| Saturation voltage | VSAT |  | 0.4 |  | V | IOUT＝1mA | 2 |
| Awake mode time | TAW |  | 50 |  | uS | 工作时 | 2 |
| Sleep mode time | TSL | 40 |  | 70 | mS | 工作时 | 2 |
| Operating point | BOP |  | 14 | 15 | GS | TA＝25℃，VDD＝3V | 3 |
| Release point | BRP | 8 | 10 |  | GS | TA＝25℃，VDD＝3V | 3 |
| Hysteresis | BHYS |  | 4 |  | GS | TA＝25℃，VDD＝3V | 3 |
| Supply voltage (operating) | VDD |  |  | 7 | V |  | 2 |
| Supply current | IDD |  |  | 7 | mA |  | 2 |
| Output voltage | VOUT |  |  | 5 | V |  | 2 |
| Output current | IOUT |  |  | 10 | mA |  | 2 |
| Operating temperature range | TA | -40 |  | 125 | ℃ |  | 2 |
| Storage temperature range | TS | -50 |  | 150 | ℃ |  | 2 |
| ESD withstand voltage | VESD |  |  | 4 | KV |  | 2 |
| Supply voltage (typical application circuit) | VDD | 1.8 |  | 5.5 | V | typical application circuit (C1 100n, C2 4.7n, R1 20K) | 4 |

## CAD (KiCad official)

- Symbol: `HAL248KTGSO`
- Footprint: `Package_TO_SOT_SMD:SOT-23-3`
- 3D model: SOT-23-3L (KiCad packages3D, STEP)
- 3D model files: `hal248ktgso-etched.step` / `hal248ktgso-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `hal248ktgso.step` / `hal248ktgso.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/8602988364174422016) (5 pp, sha256 `3ffb33e3d6b4334b`, 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-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/hal248ktgso-datasheet.pdf)