Allegro
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Digital Hall-effect switch with an open-collector output — pulls low near a magnet's south pole. Speed sensing, position, tachometers.
| Part number | A3144 Hall Sensor |
|---|---|
| Manufacturer | Allegro |
| Category | Sensors › Magnetic & Hall |
| Package | TO-92 |
| Pins | 3 |
A3144 Hall Sensor pinout
| Pin | Name | Type | Description |
|---|---|---|---|
| 1 | VCC | power | Supply, 4.5–24V |
| 2 | GND | ground | Ground |
| 3 | OUT | oc | Open-collector output — needs a pull-up |
Schematic symbol and footprint
Schematic symbol
Footprint: TO-92 — to scale, pad 1 in yellow (mm). Check against the datasheet before ordering PCBs.
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