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ACS71240LLCBTR-050U5 Breakout
HALL CURRENT SENSOR 50A 8-SOIC
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£5.87
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Design a Custom BoardAbout This Component
The ACS71240 is an integrated Hall-effect current sensor for AC/DC current measurement up to 50A in automotive and industrial applications. It features differential sensing for rejection of external magnetic fields, integrated overcurrent detection with 1.5µs response time, and chopper-stabilized amplification for high accuracy across temperature. The device operates at 3.3V or 5V single supply with a 120kHz bandwidth analog output and low conductor resistance of 1.2mΩ in SOIC-8 package.
Package: SOIC-8 (3.9×4.9mm) · 8 pins
Why does this need a breakout?
An 8-pin SOIC with 1.27mm pitch is too fine for breadboards and hand-soldering without a microscope. A breakout board routes these pins to standard 0.1" headers, enabling rapid prototyping and reliable connections for op-amps, transceivers, and small power MOSFETs without requiring reflow equipment.
Component specifications
ELECTRICAL CHARACTERISTICS
| Manufacturer | Allegro MicroSystems |
| Part Number | ACS71240LLCBTR-050U5 |
| Package | SOIC-8 (3.9×4.9mm) |
| Pin Count | 8 |
| Current - Supply (Max) | 12mA |
| Frequency | 120kHz |
| Number of Channels | 1 |
| Output | Voltage |
| Sensor Type | Hall Effect, Open Loop |
| Voltage - Supply | 4.5V ~ 5.5V |
What's Included
BILL OF MATERIALS
- 1x ACS71240LLCBTR-050U5 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