# CT8132BL-IS3

**Allegro MicroSystems LLC** · Hall Switches · SOT-23-3

CT8132BL-IS3 from Allegro MicroSystems LLC, 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 | Supply voltage input, 1.7 V to 5.5 V (recommended). Requires a 1.0 µF ceramic bypass capacitor to GND placed close to the device. Absolute max 6.0 V; UVLO releases at 1.60 V typ. |
| 2 | OUT | output | Active-low push-pull digital output. Drives low (VOL ≤ 0.1 × VDD at IOUT = 2 mA) when |B| exceeds BOP (±30 G) and returns high (VOH ≥ 0.9 × VDD at IOUT = -2 mA) when |B| falls below BRP (±20 G). Max output current ±3 mA (recommended). |
| 3 | GND | power_in | Ground reference for the device supply and output driver. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Allegro MicroSystems LLC |
| Package | SOT-23-3 |
| Category | Magnetic Sensors |
| Pins | 3 |

## Ordering variants

Same part, different packaging or reel option.

- `CT8132BL-IS3`
- `CT8132BL-HS3`
- `CT8132BV-IL4`
- `CT8132BV-HL4`

## CAD (KiCad official)

- Symbol: `CT8132BL-IS3`
- Footprint: `Package_TO_SOT_SMD:SOT-23-3`
- 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files: `ct8132bl-is3-etched.step` / `ct8132bl-is3-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ct8132bl-is3.step` / `ct8132bl-is3.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Allegro MicroSystems LLC datasheet](docs/ct8132bl-is3-datasheet.pdf) (None pp, sha256 `0adf17224d74c236`, 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/ct8132bl-is3-datasheet.pdf)