ACS714LLCTR-50A-T Current Sensor Equivalent & Substitute Parts

Part Overview

The ACS714LLCTR-50A-T is a Hall Effect current sensor manufactured by Allegro MicroSystems, designed for AC/DC current measurement up to 50A in a single-channel configuration. This device operates as an open-loop bidirectional sensor with ratiometric voltage output, suitable for applications requiring real-time current monitoring across industrial, automotive, and power management systems.

The ACS714LLCTR-50A-T carries a "Not For New Designs" product status, indicating that Allegro MicroSystems has discontinued active development and support for this model. Organizations developing new systems or requiring long-term component availability should evaluate active alternative models to ensure supply chain continuity and access to manufacturer technical support.

Substiute Parts

ACS714LLCTR-50A-T

Allegro MicroSystemsIn Stock: 8410ACS714LLCTR-50A-T Datasheet

Current PartRFQ

ACS724LLCTR-50AB-T

Allegro MicroSystemsIn Stock: 12180ACS724LLCTR-50AB-T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ACS714LLCTR-50A-T is determined by the following critical parameters:

Mechanical Compatibility: Package type (8-SOIC with 0.154" width, 3.90mm), mounting type (Surface Mount), and pin configuration must remain identical to ensure direct PCB compatibility without layout modifications.

Electrical Compatibility: Current sensing range (50A nominal), measurement capability (AC/DC bidirectional), output type (ratiometric voltage), sensitivity (40mV/A), and supply voltage (5V nominal) must be maintained or improved to preserve circuit functionality.

Performance Parameters: Frequency response, linearity, accuracy, response time, and operating temperature range determine functional equivalence. Substitute parts may exceed these specifications without compromising compatibility.

Compliance & Certification: RoHS3 compliance and REACH status must be maintained for regulatory adherence in target markets.

The ACS724LLCTR-50AB-T qualifies as a direct substitute based on identical mechanical packaging, equivalent electrical specifications, and superior performance characteristics across frequency response, accuracy, and response time metrics.

Parameter Comparison

Engineering Selection Recommendations

For New Designs: The ACS724LLCTR-50AB-T is the appropriate selection. This part carries Active product status, ensuring ongoing manufacturer support, availability, and compliance updates. The ACS724LLCTR-50AB-T provides improved performance specifications including higher frequency response (120kHz vs. 80kHz), faster response time (4µs vs. 5µs), and superior accuracy (±0.8% vs. ±1.5%), while maintaining identical mechanical and core electrical compatibility.

For Existing Systems: The ACS714LLCTR-50A-T remains functional for maintenance and repair applications. However, long-term supply availability may be limited due to discontinued status. Transition planning to the ACS724LLCTR-50AB-T is recommended for systems requiring extended operational life or future component replenishment.

Compliance Considerations: Both parts maintain ROHS3 compliance and REACH Unaffected status, satisfying regulatory requirements for EU and international markets. No compliance-related barriers exist for substitution.

Frequently Asked Questions (FAQ)

Q: Can the ACS724LLCTR-50AB-T be used as a direct replacement for the ACS714LLCTR-50A-T without PCB modifications?

A: Yes. Both parts use identical 8-SOIC packaging with 0.154" width and 3.90mm body dimensions. Pin configuration and footprint are compatible, allowing direct substitution without PCB layout changes.

Q: What are the key performance differences between these two sensors?

A: The ACS724LLCTR-50AB-T offers three measurable improvements: frequency response extends to 120kHz (compared to 80kHz), response time is 4µs (compared to 5µs), and accuracy is ±0.8% (compared to ±1.5%). Sensitivity, linearity, and operating temperature range remain identical.

Q: Is the supply voltage range different between these parts?

A: Yes. The ACS714LLCTR-50A-T requires exactly 5V supply. The ACS724LLCTR-50AB-T accepts 4.5V to 5.5V, providing greater tolerance for supply voltage variations. Both operate correctly at nominal 5V.

Q: Why is the ACS714LLCTR-50A-T marked "Not For New Designs"?

A: This designation indicates Allegro MicroSystems has concluded active development and support for this model line. The part remains available for existing applications but is not recommended for new product development due to potential future supply discontinuation.

Q: Are there any thermal or environmental operating differences?

A: No. Both sensors operate across the identical temperature range of -40°C to 150°C and maintain the same moisture sensitivity level (MSL 2, 1 Year). Environmental performance is equivalent.

Q: What is the impact of the improved accuracy specification on circuit design?

A: The ACS724LLCTR-50AB-T's ±0.8% accuracy (versus ±1.5%) reduces measurement error by approximately 47%. This improvement benefits applications requiring tighter current measurement tolerances but does not necessitate circuit redesign for applications already tolerating ±1.5% error.