10pcs/lot A3319EUA-T unipolar Hall element is used for non-contact switch, car ignition, brake circuit
https://www.vogueparade.com/shopping/EN/150412/1/1005003419988806/10pcslot-a3319eua-t-unipolar-hall-element-is-used-for-non-contact-switch-car-ignition-brake-circuit//