ACS714LLCTR-20A-T Current Sensor Hall Effect Equivalent & Substitute Parts

Part Overview

The ACS714LLCTR-20A-T is a Hall Effect current sensor manufactured by Allegro MicroSystems, designed for AC/DC current measurement applications with a 20A sensing range. This component operates as an open-loop bidirectional sensor with ratiometric voltage output, suitable for surface mount integration in 8-SOIC packaging.

The ACS714LLCTR-20A-T carries a "Not For New Designs" product status, indicating that Allegro MicroSystems has discontinued active development and support for this model. Organizations requiring this functionality for new or ongoing projects should evaluate qualified substitute components that maintain electrical and mechanical compatibility while offering active product support and potentially improved performance characteristics.

Substiute Parts

ACS714LLCTR-20A-T

Allegro MicroSystemsIn Stock: 17285ACS714LLCTR-20A-T Datasheet

Current PartRFQ

ACS724LLCTR-20AB-T

Allegro MicroSystemsIn Stock: 16056ACS724LLCTR-20AB-T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The ACS724LLCTR-20AB-T qualifies as a direct substitute for the ACS714LLCTR-20A-T based on the following substitution criteria:

Electrical Compatibility Parameters:

• Identical sensor technology: Hall Effect, Open Loop
• Matching output configuration: Ratiometric, Voltage
• Identical sensitivity specification: 100mV/A
• Identical number of channels: 1
• Identical polarization: Bidirectional
• Identical operating temperature range: -40°C ~ 150°C
• Identical supply voltage class: 5V nominal (ACS724 specifies 4.5V ~ 5.5V range, encompassing the 5V requirement)

Mechanical Compatibility Parameters:

• Identical package type: 8-SOIC (0.154", 3.90mm Width)
• Identical mounting type: Surface Mount
• Identical supplier device package: 8-SOIC

Performance Enhancement:

• Improved frequency response: DC ~ 120kHz (versus DC ~ 80kHz)
• Improved accuracy: ±0.8% (versus ±1.5%)
• Improved response time: 4µs (versus 4.6µs)
• Active product status with ongoing manufacturer support

Parameter Comparison

Engineering Selection Recommendations

The ACS724LLCTR-20AB-T is a qualified direct substitute for the ACS714LLCTR-20A-T in applications requiring Hall Effect current sensing with 20A measurement capability and 8-SOIC surface mount packaging.

Substitution Basis:

The ACS724LLCTR-20AB-T maintains full electrical and mechanical compatibility with the ACS714LLCTR-20A-T across all critical parameters: identical sensor technology, output configuration, sensitivity, channel count, polarization, operating temperature range, and package specifications. Both components are ROHS3 compliant and carry identical moisture sensitivity levels.

Product Status Consideration:

The ACS714LLCTR-20A-T is designated "Not For New Designs," indicating discontinued active development. The ACS724LLCTR-20AB-T carries "Active" product status, ensuring ongoing manufacturer support, availability, and compliance with current industry standards.

Performance Characteristics:

The ACS724LLCTR-20AB-T provides measurable performance improvements over the ACS714LLCTR-20A-T: enhanced frequency response (120kHz versus 80kHz), improved accuracy specification (±0.8% versus ±1.5%), and wider supply voltage tolerance (4.5V ~ 5.5V versus fixed 5V). These enhancements do not alter functional compatibility but provide additional operational margin in demanding applications.

Compliance and Certification:

Both components maintain identical RoHS3 compliance, REACH unaffected status, and EAR99 export classification. No additional qualification or testing is required for substitution based on regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can the ACS724LLCTR-20AB-T be used as a direct replacement for the ACS714LLCTR-20A-T in existing designs?

A: Yes. The ACS724LLCTR-20AB-T is electrically and mechanically compatible with the ACS714LLCTR-20A-T. Both components share identical sensor technology, output configuration, sensitivity, channel count, polarization, operating temperature range, and 8-SOIC surface mount packaging. No circuit modifications are required for substitution.

Q: What are the key differences between these two parts?

A: The primary differences are product status and performance specifications. The ACS724LLCTR-20AB-T is an active product with improved accuracy (±0.8% versus ±1.5%), extended frequency response (DC ~ 120kHz versus DC ~ 80kHz), and wider supply voltage tolerance (4.5V ~ 5.5V versus 5V nominal). The ACS714LLCTR-20A-T is designated "Not For New Designs."

Q: Are the package dimensions identical?

A: Yes. Both components use 8-SOIC (0.154", 3.90mm Width) surface mount packaging with identical pin configurations and footprints. PCB layout modifications are not required.

Q: What is the significance of the "Not For New Designs" status?

A: This designation indicates that Allegro MicroSystems has discontinued active development and support for the ACS714LLCTR-20A-T. While existing inventory may remain available, the manufacturer recommends using the ACS724LLCTR-20AB-T for new applications to ensure long-term availability and ongoing technical support.

Q: Do both components require identical supply voltage?

A: The ACS714LLCTR-20A-T specifies 5V supply voltage. The ACS724LLCTR-20AB-T specifies 4.5V ~ 5.5V supply voltage range. The ACS724LLCTR-20AB-T is compatible with 5V supply systems and provides additional tolerance margin. Both components operate within standard 5V logic supply rails.

Q: Are there any compliance or certification differences?

A: No. Both components are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity levels (MSL 2, 1 Year). No additional compliance qualification is required for substitution.

Q: What is the impact of the improved accuracy specification?

A: The ACS724LLCTR-20AB-T provides ±0.8% accuracy compared to ±1.5% for the ACS714LLCTR-20A-T. This represents a tighter tolerance specification, reducing measurement error in current sensing applications. Existing designs will continue to function with the improved specification.