This part is a kind of semiconductor called A1324.

Function of this product has Linear Hall Effect Sensor ICs.

Manufacturers : Allegro MicroSystems

Image and pinout :

Some of the text within the PDF file :

A1324, A1325, and A1326 Low Noise, Linear Hall Effect Sensor ICs with Analog Output Features and Benefits • Temperature-stable quiescent output voltage and sensitivity • Output voltage proportional to magnetic flux density • Low-noise output increases accuracy • Precise recoverability after temperature cycling • Ratiometric rail-to-rail output • Wide ambient temperature range: –40°C to 150°C • Immune to mechanical stress • Solid-state reliability • Enhanced EMC performance for stringent automotive applications Packages 3-pin ultramini SIP 1.5 mm × 4 mm × 3 mm (suffix UA) 3-pin SOT23-W 2 mm × 3 mm × 1 mm (suffix LH) Approximate footprint Description New applications for linear output Hall-effect devices, such as displacement, angular position, and current meas [ ... ]

A1324 PDF Datasheet Download