# A1126LUA-T

**Allegro MicroSystems, LLC** · Magnetic Sensors · TO-92S

A1126LUA-T from Allegro MicroSystems, LLC, 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 | Connects the power supply to the chip; operating supply voltage is 3 to 24 V with TJ below 165°C, and forward supply voltage is rated to 28 V. |
| 2 | GND | power_in | Ground connection for the device. |
| 3 | VOUT | output | Open-drain output that switches low when the operate point is reached, sinking up to the output current limit IOM of 30 to 60 mA, with output off voltage rated to 28 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Allegro MicroSystems, LLC |
| Package | TO-92S |
| Category | Sensors |
| Pins | 3 |

## Materials and finish

As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).

| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts |  | tin | UA is a three-lead ultra-mini SIP for through-hole mounting. Each package is lead (Pb) free, with 100% matte-tin-plated leadframe. | 2 |

## CAD (KiCad official)

- Symbol: `A1126LUA-T`
- Footprint: `Package_TO_SOT_THT:TO-92_Inline`
- 3D model: TO-92S (KiCad packages3D, STEP)
- 3D model files: `a1126lua-t-etched.step` / `a1126lua-t-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `a1126lua-t.step` / `a1126lua-t.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Allegro MicroSystems, LLC datasheet](docs/a1126lua-t-datasheet.pdf) (15 pp, sha256 `6051512fde1de568`, retrieved 2026-10-27, 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/a1126lua-t-datasheet.pdf)