Is there a pin-compatible replacement for ACS712ELCTR-05B-T?

Yes, the ACS724LLCTR-05AB-T is a pin-compatible replacement from the same manufacturer. However, its electrical characteristics like sensitivity are different, requiring system adjustments.

What risks should I check before replacing ACS712ELCTR-05B-T?

The main risk is the change in sensitivity. The ACS724LLCTR-05AB-T has a sensitivity of 400 mV/A versus the ACS712's 185 mV/A. Your system's firmware or software must be updated to calculate the correct current.

ACS712ELCTR-05B-T Alternatives, Datasheet & Cross Reference | Allegro MicroSystems

The Allegro ACS712ELCTR-05B-T is a popular Hall-effect current sensor now marked 'Not For New Designs'. The recommended upgrade is the pin-compatible ACS724LLCTR-05AB-T, which offers improved performance but requires system recalibration.

AI replacement insight

Firmware riskhigh

Sensitivity changes from 185mV/A to 400mV/A, requiring mandatory software/firmware update.

Package risklow

Package and pinout are identical, posing no physical integration risk.

Sourcing risklow

The recommended upgrade ACS724LLCTR-05AB-T has an 'Active' lifecycle.

Can it be replaced directly?

There is no direct, drop-in replacement without any changes. The recommended upgrade, ACS724LLCTR-05AB-T, is pin-compatible but requires system recalibration for its different sensitivity.

Best replacement path

Upgrade to the pin-compatible ACS724LLCTR-05AB-T, which has the same current range and an active lifecycle.

Main risk

The primary risk is the significant difference in output sensitivity, which requires mandatory firmware or software changes to avoid incorrect current readings.

Recommended alternatives

A newer generation, pin-compatible sensor with the same current range but requires recalibration for different sensitivity.

View details

Alternative comparison matrix

Feature / factor	ACS712ELCTR-05B-T	ACS724LLCTR-05AB-T	ACS712ELCTR-20A-T	Compatibility / risk
Package	8-SOIC	8-SOIC	8-SOIC	8-SOIC — Package is identical.; ACS712ELCTR-20A-T: Package is identical.
Pinout	Pin-compatible	Pin-compatible	-	Pin-compatible — Datasheets confirm identical pin functions.
Current	5 A	±5 A	±20 A	±5 A / ±20 A — Current sensing range is identical.; ACS712ELCTR-20A-T: Current range is 4x higher.
Sensitivity	185 mV/A	400 mV/A	100 mV/A	400 mV/A / 100 mV/A — Sensitivity is significantly different, requires recalibration.; ACS712ELCTR-20A-T: Different sensitivity requires recalibration.
Temperature	-40°C to 85°C	-40°C to 150°C	-	-40°C to 150°C — Wider operating temperature range.
Lifecycle	Not For New Designs	Active	Not For New Designs	Active / Not For New Designs — Candidate is active, replacing an NRND part.; ACS712ELCTR-20A-T: Both parts are NRND.

Application & sourcing insights

Questions & answers

The ACS724LLCTR-05AB-T is the recommended upgrade path. It is pin-compatible and has the same ±5A current range, but requires recalibration due to different sensitivity.