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A1120LLHLT-T Breakout
HALL SWITCH UNIPOLAR SOT23W 3-24V 25MA
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Chopper-stabilized Hall-effect unipolar magnetic switch IC in SOT-23W package for operation from –40 to 150°C. Integrates voltage regulator, amplifier, and open-drain output capable of sinking 25 mA, with dynamic offset cancellation for superior temperature stability. Suited for automotive applications and harsh environments requiring reliable magnetic field detection without moving contacts.
Package: SOT-23W · 3 pins
Why does this need a breakout?
SC-59's 0.95mm pin pitch and three-lead configuration make hand-soldering impractical and breadboard prototyping impossible. A breakout board converts these tiny SMD pads to standard headers, enabling quick integration of analog switches, hall-effect sensors, and low-voltage logic gates into development circuits without specialized soldering equipment.
Component specifications
ELECTRICAL CHARACTERISTICS
| Manufacturer | Allegro MicroSystems |
| Part Number | A1120LLHLT-T |
| Package | SOT-23W |
| Pin Count | 3 |
| Current - Output (Max) | 25mA |
| Current - Supply (Max) | 4mA |
| Output Type | Open Drain |
| Voltage - Supply | 3V ~ 24V |
What's Included
BILL OF MATERIALS
- 1x A1120LLHLT-T soldered onto breakout PCB
- Pin headers pre-soldered (2.54mm / 0.1" pitch)
- All IC pins broken out to 2.54mm headers
Breakout Board Design
PCB SPECIFICATIONS