# MT8571AT

**Magn Tek** · Hall Sensor · SOT-23

MT8571AT from Magn Tek, in a SOT-23. 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 | Supply voltage input, 3.0V to 24V operating range (30V absolute max). Typical supply current is 1mA. Recommend a 100nF decoupling capacitor to GND per typical application circuit. |
| 2 | OUT | output | Open-drain Hall-switch output with internal 10K pull-up to VCC. Pulls low (VDS(ON) < 0.4V @ 20mA) when |B| > |BOP|, released high when |B| < |BRP|. Continuous output current 55mA max; short-circuit protection limits to ~50mA. Optional 1nF cap to GND for noise filtering. |
| 3 | GND | power_in | Ground reference pin for the device. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Magn Tek |
| Package | SOT-23 |
| Category | Sensor |
| Pins | 3 |

## Ordering variants

Same part, different packaging or reel option.

- `MT857XAT`
- `MT8571AT`
- `MT857XA`

## CAD (KiCad official)

- Symbol: `MT8571AT`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `mt8571at-etched.step` / `mt8571at-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mt8571at.step` / `mt8571at.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Magn Tek datasheet](docs/mt8571at-datasheet.pdf) (10 pp, sha256 `a734384afcf0c0e5`, retrieved 2026-08-17, tier: lcsc)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/mt8571at-datasheet.pdf)