ACS714ELCTR-20A-T Current Sensor Equivalent & Substitute Parts

Part Overview

The ACS714ELCTR-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 industrial and consumer electronics requiring real-time current monitoring.

The ACS714ELCTR-20A-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 substitute parts to ensure supply chain continuity and access to manufacturer technical support.

Substiute Parts

ACS714ELCTR-20A-T

Allegro MicroSystemsIn Stock: 6081ACS714ELCTR-20A-T Datasheet

Current PartRFQ

ACS724LLCTR-20AB-T

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

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ACS714ELCTR-20A-T is determined by the following critical parameters:

Mandatory Compatibility Parameters:

• Sensor Type: Hall Effect, Open Loop
• Measurement Capability: AC/DC bidirectional current sensing
• Current Sensing Range: 20A nominal
• Output Type: Ratiometric voltage output
• Sensitivity: 100mV/A
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Mounting Type: Surface Mount
• Polarization: Bidirectional

Allowable Variation Parameters:

• Frequency Range: May exceed 80kHz specification
• Operating Temperature: May exceed -40°C ~ 85°C range
• Supply Voltage: May support wider input range (4.5V ~ 5.5V acceptable)
• Linearity and Accuracy: May improve from ±1.5% specification
• Response Time: May be faster than 4.6µs specification
• Current Supply: May vary within reasonable limits

The ACS724LLCTR-20AB-T qualifies as a direct substitute based on matching all mandatory parameters while offering improved performance characteristics in frequency response, accuracy, and operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

For Existing Designs Using ACS714ELCTR-20A-T:

The ACS724LLCTR-20AB-T is a direct functional replacement. Both components share identical package geometry, pinout configuration, and core electrical characteristics. The substitute part maintains 100% compatibility with existing PCB layouts and circuit designs without requiring modifications to schematic or layout files.

For New Design Implementations:

The ACS724LLCTR-20AB-T is the recommended selection. This part carries "Active" product status, ensuring ongoing manufacturer support, continued availability, and access to technical documentation. The improved accuracy specification (±0.8% versus ±1.5%), extended frequency response (DC ~ 120kHz versus DC ~ 80kHz), and wider operating temperature range (-40°C ~ 150°C versus -40°C ~ 85°C) provide enhanced performance margins for demanding applications.

Compliance and Supply Chain Considerations:

Both parts maintain ROHS3 compliance and REACH unaffected status. The ACS724LLCTR-20AB-T demonstrates superior supply chain availability with 16,037 units in stock compared to the legacy part's 5,984 units. For applications requiring long-term component sourcing and manufacturer technical support, the active substitute part is the appropriate selection.

Frequently Asked Questions (FAQ)

Q: Can the ACS724LLCTR-20AB-T be used as a direct replacement in existing circuits designed for the ACS714ELCTR-20A-T?

A: Yes. Both components use identical 8-SOIC packaging, matching pinout configuration, and equivalent ratiometric voltage output characteristics. No circuit modifications are required for direct substitution.

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

A: The ACS724LLCTR-20AB-T offers improved accuracy (±0.8% versus ±1.5%), extended frequency response (DC ~ 120kHz versus DC ~ 80kHz), wider operating temperature range (-40°C ~ 150°C versus -40°C ~ 85°C), and carries active product status. The legacy ACS714ELCTR-20A-T is marked "Not For New Designs."

Q: Are there any supply voltage compatibility concerns?

A: The ACS714ELCTR-20A-T requires exactly 5V supply. The ACS724LLCTR-20AB-T accepts 4.5V ~ 5.5V supply range. Both operate correctly with standard 5V power supplies. The substitute part provides greater tolerance to supply voltage variations.

Q: Does the substitute part maintain the same current sensing range?

A: Yes. Both parts provide 20A current sensing capability with 100mV/A sensitivity. The ACS724LLCTR-20AB-T explicitly specifies ±20A bidirectional range, providing equivalent measurement performance.

Q: What is the impact of the 4µs response time on the ACS724LLCTR-20AB-T compared to the 4.6µs specification of the original part?

A: The 0.5µs difference is negligible for most AC/DC current measurement applications. The substitute part's extended frequency response to 120kHz provides superior performance for high-frequency current monitoring compared to the original 80kHz specification.

Q: Are both parts suitable for industrial temperature environments?

A: The ACS714ELCTR-20A-T operates within -40°C ~ 85°C range. The ACS724LLCTR-20AB-T extends to -40°C ~ 150°C, making it suitable for higher-temperature industrial applications. For standard commercial temperature environments, both parts are acceptable.

Q: What certifications apply to both components?

A: Both parts maintain ROHS3 compliance and REACH unaffected status, meeting environmental and regulatory requirements for industrial and consumer electronics applications.