HLSR 32-P Hall Effect Current Sensor - Equivalent & Substitute Parts

Part Overview

The HLSR 32-P is an active Hall Effect current sensor manufactured by LEM USA Inc., designed for AC/DC current measurement applications requiring bidirectional sensing capability. This open-loop module provides ratiometric voltage output with 32A sensing range and operates across industrial temperature ranges. The part is Active status and RoHS Compliant, making it suitable for modern electronic applications requiring environmental compliance.

Substitute parts are identified when equivalent electrical and mechanical parameters allow direct functional replacement within the same application context, particularly when supply voltage requirements or current sensing ranges differ from the primary specification.

Substiute Parts

HLSR 32-P

LEM USA Inc.In Stock: 7920HLSR 32-P Datasheet

Current PartRFQ

HLSR 20-P/SP33

LEM USA Inc.In Stock: 2005HLSR 20-P/SP33 Datasheet

Parametric EquivalentRFQ

HLSR 32-P/SP33

LEM USA Inc.In Stock: 6296HLSR 32-P/SP33 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HLSR 32-P are identified based on the following criteria:

Electrical Compatibility Parameters:

• Sensor Type: Hall Effect, Open Loop (must match)
• Output Type: Ratiometric, Voltage (must match)
• Frequency: 400kHz (must match)
• Linearity: ±0.5% (must match)
• Accuracy: ±1% (must match)
• Response Time: 2.5µs (must match)
• Current - Supply (Max): 25mA (must match)
• Operating Temperature: -40°C ~ 105°C (must match)
• Polarization: Bidirectional (must match)

Mechanical Compatibility Parameters:

• Mounting Type: Through Hole (must match)
• Package / Case: Module (must match)
• Packaging: Tray (must match)

Allowed Variation Parameters:

• Current - Sensing: May differ based on application requirements
• Voltage - Supply: May differ (5V or 3.3V variants available)
• Sensitivity: Adjusts proportionally with current range

The HLSR 32-P/SP33 and HLSR 20-P/SP33 are identified as parametric equivalents because they maintain all core electrical and mechanical specifications while offering alternative supply voltage (3.3V) and current sensing range options.

Parameter Comparison

Engineering Selection Recommendations

HLSR 32-P (Primary Part) Select this variant when the application requires 5V supply voltage and 32A current sensing range. All parts in this substitution group maintain Active product status and full RoHS compliance, ensuring continued availability and environmental regulatory adherence.

HLSR 32-P/SP33 (Direct Electrical Equivalent) This part provides identical 32A current sensing capability with equivalent electrical performance specifications. The primary distinction is the 3.3V supply voltage requirement and adjusted sensitivity of 14.375mV/A. Selection is appropriate for 3.3V logic-level systems where the 32A sensing range is required. Product status is Active with full compliance certifications.

HLSR 20-P/SP33 (Reduced Current Range Variant) This part operates at 3.3V supply voltage with 20A current sensing range and 23mV/A sensitivity. Selection is appropriate for applications requiring lower current measurement capacity within 3.3V supply environments. Product status is Active with full compliance certifications. This variant is suitable only when the application current does not exceed 20A.

All three parts share identical mechanical mounting specifications (Through Hole, Module package), thermal operating range (-40°C ~ 105°C), and core performance characteristics (400kHz frequency, ±0.5% linearity, ±1% accuracy, 2.5µs response time).

Frequently Asked Questions (FAQ)

Q: Can HLSR 32-P be directly replaced with HLSR 32-P/SP33?

A: Direct replacement requires verification of supply voltage compatibility. HLSR 32-P requires 5V supply, while HLSR 32-P/SP33 requires 3.3V supply. Both provide identical 32A current sensing range and equivalent electrical performance. Substitution is valid only if the application circuit can accommodate 3.3V supply voltage. The sensitivity difference (25mV/A vs 14.375mV/A) reflects the lower supply voltage and must be accounted for in signal conditioning circuits.

Q: Is HLSR 20-P/SP33 suitable as a substitute for HLSR 32-P?

A: HLSR 20-P/SP33 is a parametric equivalent only for applications where the measured current does not exceed 20A. The 20A current sensing range is the limiting factor. If the application requires measurement of currents between 20A and 32A, HLSR 20-P/SP33 is not suitable. Both parts maintain identical electrical performance characteristics (frequency, linearity, accuracy, response time) and operate at 3.3V supply voltage.

Q: What are the key differences in sensitivity between these parts?

A: Sensitivity differences are proportional to the current sensing range and supply voltage. HLSR 32-P provides 25mV/A at 5V supply. HLSR 32-P/SP33 provides 14.375mV/A at 3.3V supply for the same 32A range. HLSR 20-P/SP33 provides 23mV/A at 3.3V supply for the 20A range. These differences must be accommodated in analog-to-digital conversion and signal processing circuits.

Q: Are all three parts mechanically interchangeable?

A: Yes. All three parts share identical mechanical specifications: Through Hole mounting type, Module package configuration, and Tray packaging. PCB layout and mounting hole patterns are compatible across all variants.

Q: What compliance certifications apply to all substitute parts?

A: All three parts are RoHS Compliant and REACH Unaffected, maintaining equivalent environmental regulatory status. All parts maintain Active product status, ensuring continued manufacturing and supply availability.

Q: Can supply voltage be the only reason to select a substitute part?

A: Supply voltage is a valid substitution criterion when the application circuit operates at 3.3V logic levels rather than 5V. However, the current sensing range requirement must also be verified. HLSR 32-P/SP33 maintains the 32A range, while HLSR 20-P/SP33 reduces the range to 20A. Selection must satisfy both voltage and current requirements.