A1324LLHLT-T from Allegro MicroSystems LLC, in a SOT-23W. 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. Operating range 4.5 V to 5.5 V (nominal 5.0 V). A bypass capacitor (typically 0.1 uF) should be connected between VCC and GND close to the device.
2	VOUT	output	Analog ratiometric output voltage proportional to the applied magnetic flux density. Quiescent output voltage is nominally VCC/2 (2.5 V at VCC = 5.0 V) with a sensitivity of 5.0 mV/G. Output can drive up to +/-1.5 mA.
3	GND	power_in	Ground reference for the device.

Key specifications

Parameter	Value
Manufacturer	Allegro MicroSystems LLC
Package	SOT-23W
Category	Sensor
Pins	3

Ordering variants

A1324LLHLT-T

CAD (KiCad official)

Symbol: A1324LLHLT-T
Footprint: Package_TO_SOT_SMD:SOT-23
3D model: SOT-23W (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`a1324llhlt-t.step`	59 KB	You want the bare part, or you mark your own boards.
`a1324llhlt-t-etched.step`	1.3 MB	You want the part with `A1324LLHLT-T` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 362 faces against 69 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

Datasheet: Allegro MicroSystems LLC datasheet (12 pp, sha256 0c4fe174d39a19dc, 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