# AH3712-SA-7

**Diodes Incorporated** · Linear Hall Sensors · SOT-23-3

AH3712-SA-7 from Diodes Incorporated, in a SOT-23-3. 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 | VDD | power_in | Power supply input. Operating range 3.0V to 27V (absolute max 40V transient, load-dump up to 40V). Reverse supply rated to -18V. Recommended 10nF-100nF decoupling capacitor (CIN) to GND. Typical supply current IDD ≈ 2.8mA (max 4.8mA over temp). |
| 2 | GND | power_in | Ground reference for the device. Return for VDD, output current, and internal Hall-sensor bias circuits. |
| 3 | OUTPUT | output | Open-drain latch output (AH3712 variant; AH3712A includes internal ~14kΩ pull-up, AH3712B is inverted). Requires external pull-up resistor RL to VDD. VOUT_ON ≈ 0.25V typ (max 0.42V) at 20mA sink; output leakage <0.1µA typ at 27V off. Sinks up to 60mA absolute max with internal current limit IOCL of 30-60mA. Rated to 40V off-state; 36V zener clamp. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-23-3 |
| Category | Magnetic Sensors |
| Pins | 3 |

## Ordering variants

Same part, different packaging or reel option.

- `AH3712-SA-7`
- `AH3712-SA-7W-7`
- `AH3712-SA-7P-B`

## CAD (KiCad official)

- Symbol: `AH3712-SA-7`
- Footprint: `Package_TO_SOT_SMD:SOT-23-3`
- 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files: `ah3712-sa-7-etched.step` / `ah3712-sa-7-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ah3712-sa-7.step` / `ah3712-sa-7.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Diodes Incorporated datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8604309783683866624) (None pp, sha256 `5fa3d3302b2575c3`, 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/ah3712-sa-7-datasheet.pdf)