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3121, 3122, AND 3123
HALL-EFFECT SWITCHES FOR HIGH-TEMPERATURE OPERATION
These Hall-effect switches are monolithic integrated circuits with tighter magnetic specifications, designed to operate continuously over extended temperatures to +150°C, and are more stable with both temperature and supply voltage changes. The unipolar switching characteristic makes these devices ideal for use with a simple bar or rod magnet. The three basic devices (3121, 3122, and 3123) are identical except for magnetic switch points. Each device includes a voltage regulator for operation with supply voltages of 4.
3121 Datasheet
