ACS754LCB-050-PFF Equivalent & Substitute Parts

Part Overview

The ACS754LCB-050-PFF is a Hall Effect current sensor manufactured by Allegro MicroSystems, designed for AC/DC current measurement applications requiring 50A sensing capability. This component features open-loop bidirectional operation with ratiometric voltage output and is housed in a 5-CB formed leads package suitable for through-hole mounting.

The ACS754LCB-050-PFF is classified as obsolete. Locating equivalent substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and access components with improved performance characteristics or extended availability.

Substiute Parts

ACS754LCB-050-PFF

Allegro MicroSystemsIn Stock: 1325ACS754LCB-050-PFF Datasheet

Current PartRFQ

ACS758LCB-050B-PFF-T

Allegro MicroSystemsIn Stock: 17819ACS758LCB-050B-PFF-T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The ACS758LCB-050B-PFF-T qualifies as a direct substitute for the ACS754LCB-050-PFF based on the following critical parameters:

Matching Parameters:

• Current sensing capacity: 50A
• Sensor technology: Hall Effect, Open Loop
• Measurement capability: AC/DC Bidirectional
• Output configuration: Ratiometric Voltage
• Sensitivity: 40mV/A
• Package designation: 5-CB Formed Leads, PFF
• Mounting method: Through Hole
• Operating temperature range: -40°C to 150°C
• RoHS compliance: ROHS3 Compliant

The ACS758LCB-050B-PFF-T represents an active product with enhanced specifications and automotive-grade qualification, making it suitable for applications previously served by the obsolete ACS754LCB-050-PFF.

Parameter Comparison

Engineering Selection Recommendations

The ACS758LCB-050B-PFF-T is the appropriate substitute for the obsolete ACS754LCB-050-PFF. Selection is based on the following factors:

Product Status: The ACS758LCB-050B-PFF-T maintains active production status with established supply chain availability, whereas the ACS754LCB-050-PFF is obsolete and subject to inventory depletion.

Compliance and Certification: The ACS758LCB-050B-PFF-T carries AEC-Q100 automotive qualification and ROHS3 compliance, meeting stringent reliability and environmental standards applicable to both automotive and industrial applications.

Electrical Compatibility: Both components share identical current sensing capacity, output type, sensitivity, and operating temperature range. The substitute provides enhanced frequency response (120kHz versus 35kHz) and faster response time (4µs versus 12µs), representing performance improvements without compromising backward compatibility.

Package and Mounting: Identical 5-CB formed leads package and through-hole mounting configuration ensure direct mechanical and electrical compatibility in existing PCB designs.

Frequently Asked Questions (FAQ)

Q: Can the ACS758LCB-050B-PFF-T be used as a direct replacement for the ACS754LCB-050-PFF?

A: Yes. Both components share identical current sensing capacity (50A), sensor technology (Hall Effect, Open Loop), output configuration (ratiometric voltage), sensitivity (40mV/A), package type (5-CB formed leads), and operating temperature range (-40°C to 150°C). The substitute is electrically and mechanically compatible.

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

A: The ACS758LCB-050B-PFF-T offers improved specifications: frequency response extends to 120kHz (versus 35kHz), response time is 4µs (versus 12µs), and linearity is ±1% (versus ±1.5%). The substitute carries automotive-grade qualification (AEC-Q100) and active product status, whereas the original is obsolete.

Q: Are there supply voltage differences that affect circuit design?

A: The ACS754LCB-050-PFF requires exactly 5V supply. The ACS758LCB-050B-PFF-T accepts a wider supply range of 3V to 5.5V, providing greater design flexibility. Existing 5V supply circuits require no modification.

Q: Does the package remain the same?

A: Yes. Both components use the 5-CB formed leads package with PFF designation and through-hole mounting. No PCB layout changes are necessary.

Q: What is the impact of the increased supply current specification?

A: The substitute draws a maximum of 14.6mA compared to 10mA for the original. This 4.6mA increase is negligible in most applications and should not require power supply redesign in standard implementations.

Q: Is the ACS758LCB-050B-PFF-T suitable for automotive applications?

A: Yes. The substitute carries AEC-Q100 qualification, making it suitable for automotive-grade applications. The original part carries no automotive qualification designation.