1.PartNo:A1104EUA-T 2.Bran:Allegro 3.D/C:11+ 4.Type:Unipolar Switch 5.High quality,good price ... single silicon chip: voltage regulator, Hall-voltage generator, small-signal amplifier, Schmitt trigger, and NMOS output transistor. The integrated voltage regulator ... for all the shipping cost incurred. Hall-Effect Sensor Unipolar Digital Switches ICs , chips , A1104EUA-T