Specifications: The AMT8632 is an omnipolar Hall switch in SOT23-3, identical in performance to the AMLX90248. It operates from 2.2-5V, consumes a mere 3µA, and switches at ±20 Gauss (Bop) with a ±10 Gauss hysteresis (Brp). Its operating range is -40°C to 85°C. Application Scenarios: This switch targets the same ultra-low-power, omnipolar sensing market. It is commonly used in smart packaging for anti-theft tags, in wearable fitness trackers for mode switching via a magnet, in electronic shelf labels (ESL) for battery management, and in Bluetooth beacons, providing a reliable 'magnet present/absent' signal with minimal impact on battery life.