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| PartNumber | A1221LLHLX-T | A1221LLHLT-T | A1221LLHLT-T2 |
| Description | Hall Effect Sensor 25mA Latch 3.3V/5V/9V/12V/15V/18V Automotive 3-Pin SOT-23W T/R | MAGNETIC SWITCH LATCH SOT23W | |
| Manufacturer | Allegro MicroSystems, LLC | - | - |
| Product Category | Magnetic Sensors - Switches (Solid State) | - | - |
| Series | Automotive, AEC-Q100 | - | - |
| Packaging | Tape & Reel (TR) Alternate Packaging | - | - |
| Package Case | SOT-23W | - | - |
| Technology | Hall Effect | - | - |
| Operating Temperature | -40°C ~ 150°C (TA) | - | - |
| Output Type | Open Drain | - | - |
| Features | - | - | - |
| Function | Latch | - | - |
| Voltage Supply | 3 V ~ 24 V | - | - |
| Supplier Device Package | SOT-23W | - | - |
| Current Supply Max | 4mA | - | - |
| Current Output Max | 25mA | - | - |
| Test Condition | -40°C ~ 150°C | - | - |
| Polarization | South Pole | - | - |
| Sensing Range | 9mT Trip, -9mT Release | - | - |