LPSR 50-NP Hall Effect Current Sensor Equivalent & Substitute Parts

Part Overview

The LPSR 50-NP is a 50A unipolar Hall Effect current sensor manufactured by LEM USA Inc. This closed-loop bidirectional module provides ratiometric voltage output for AC/DC current measurement applications. The part is Active status and widely used in industrial power monitoring, motor control, and energy management systems. Substitute parts are identified when equivalent electrical and mechanical parameters are required for design flexibility, supply chain continuity, or inventory optimization.

Substiute Parts

LPSR 50-NP

LEM USA Inc.In Stock: 766LPSR 50-NP Datasheet

Current PartRFQ

LESR 50-NP

LEM USA Inc.In Stock: 920LESR 50-NP Datasheet

Parametric EquivalentRFQ

LKSR 50-NP

LEM USA Inc.In Stock: 1028LKSR 50-NP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LPSR 50-NP are identified based on strict parametric equivalence across all critical electrical and mechanical specifications. The substitution logic is based on the following key parameters that must remain identical:

Critical Matching Parameters:

• Current sensing range: 50A
• Sensor technology: Hall Effect, Closed Loop
• Number of channels: 1
• Output configuration: Ratiometric, Voltage
• Sensitivity: 12.5mV/A
• Frequency response: 300kHz
• Linearity: ±0.1%
• Accuracy: ±1.25%
• Supply voltage range: 4.75V ~ 5.25V
• Response time: 400ns
• Maximum supply current: 51.3mA
• Operating temperature range: -40°C ~ 105°C
• Polarization: Bidirectional
• Mounting type: Through Hole
• Package type: Module
• Compliance: RoHS Compliant, REACH Unaffected

The LESR 50-NP and LKSR 50-NP meet all these criteria and are therefore direct parametric equivalents. Series designation differs (LESR and LKSR versus LPSR), but all electrical performance, output characteristics, and environmental specifications are identical.

Parameter Comparison

Engineering Selection Recommendations

All three parts—LPSR 50-NP, LESR 50-NP, and LKSR 50-NP—are Active status products from LEM USA Inc. with identical electrical specifications and environmental compliance certifications. Selection between these parts is based on availability and supply chain requirements rather than technical performance differences.

Compliance and Certification Status:

• All parts are RoHS Compliant
• All parts are REACH Unaffected
• All parts carry Moisture Sensitivity Level 1 (Unlimited)
• All parts are classified under ECCN EAR99 and HTSUS 9030.33.3800

Inventory Availability:

• LPSR 50-NP: 700 Pcs in stock
• LESR 50-NP: 818 Pcs in stock
• LKSR 50-NP: 1002 Pcs in stock

For applications requiring the 50A Hall Effect current sensor with closed-loop bidirectional measurement, any of these three part numbers can be selected based on immediate availability and project lead time requirements. No performance trade-offs exist between the options.

Frequently Asked Questions (FAQ)

Q: Can LESR 50-NP and LKSR 50-NP be used as direct replacements for LPSR 50-NP?

A: Yes. All three parts share identical electrical specifications, output characteristics, sensitivity, frequency response, accuracy, and environmental operating ranges. They are parametric equivalents suitable for direct substitution in circuit designs and PCB layouts.

Q: Are there any differences in the module package or mounting footprint?

A: No. All three parts use identical Through Hole mounting type and Module package configuration. Physical compatibility is maintained across all three part numbers.

Q: What is the difference between the LPSR, LESR, and LKSR series designations?

A: The series designation reflects different product lines within LEM USA Inc.'s current sensor portfolio. However, the 50-NP variants across all three series are electrically and mechanically equivalent. Series differences do not affect functional performance or interchangeability.

Q: Are all three parts compliant with RoHS and REACH regulations?

A: Yes. LPSR 50-NP, LESR 50-NP, and LKSR 50-NP are all RoHS Compliant and REACH Unaffected. They meet current environmental and regulatory requirements for industrial applications.

Q: Which part should be selected if all three are available?

A: Selection should be based on supply chain logistics and project timeline. All three parts deliver identical performance. The LKSR 50-NP currently has the highest inventory level (1002 Pcs), followed by LESR 50-NP (818 Pcs) and LPSR 50-NP (700 Pcs).

Q: Is the 12.5mV/A sensitivity consistent across all three parts?

A: Yes. All three parts provide identical 12.5mV/A sensitivity, ensuring consistent signal conditioning and measurement accuracy in multi-channel or redundant system designs.

Q: What is the response time specification, and is it the same for all substitutes?

A: The response time is 400ns for all three parts. This specification is critical for high-speed current measurement applications and remains constant across LPSR 50-NP, LESR 50-NP, and LKSR 50-NP.