Unipolar Magnetic Switch, 3‑SIP Package
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The A1121LUA-T is a unipolar Hall-effect switch manufactured by Allegro MicroSystems. This device is designed to respond to a single magnetic pole. It is supplied in a 3-pin SIP (Single In-line Package) for through-hole mounting.
This unipolar magnetic switch is commonly used in applications requiring reliable detection of magnetic fields. Its compact size and SIP packaging make it suitable for various electronic systems.