| Part Number | Manufacturer | Description |
| A1140ELH | Allegro MicroSystems | Two-Wire, Factory-Programmed, Chopper-Stabilized, Unipolar Hall-Effect Switch |
| A1140ELHLT | Allegro MicroSystems | A1140-43 Sensitive Two-Wire Chopper-Stabilized Unipolar Hall-Effect Switches |
| A1140ELHLT-T | Allegro MicroSystems | A1140-43 Sensitive Two-Wire Chopper-Stabilized Unipolar Hall-Effect Switches |
| A1140EUA | Allegro MicroSystems | A1140-43 Sensitive Two-Wire Chopper-Stabilized Unipolar Hall-Effect Switches |
| A1140EUA-T | Allegro MicroSystems | A1140-43 Sensitive Two-Wire Chopper-Stabilized Unipolar Hall-Effect Switches |
| A1140LLH | Allegro MicroSystems | Two-Wire, Factory-Programmed, Chopper-Stabilized, Unipolar Hall-Effect Switch |
| A1140LLHLT | Allegro MicroSystems | A1140-43 Sensitive Two-Wire Chopper-Stabilized Unipolar Hall-Effect Switches |
| A1140LLHLT-T | Allegro MicroSystems | A1140-43 Sensitive Two-Wire Chopper-Stabilized Unipolar Hall-Effect Switches |
| A1140LUA | Allegro MicroSystems | A1140-43 Sensitive Two-Wire Chopper-Stabilized Unipolar Hall-Effect Switches |
| A1140LUA-T | Allegro MicroSystems | A1140-43 Sensitive Two-Wire Chopper-Stabilized Unipolar Hall-Effect Switches |
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