LKSR 25-NP Hall Effect Current Sensor Equivalent & Substitute Parts

Part Overview

The LKSR 25-NP is a Hall Effect closed-loop bidirectional current sensor manufactured by LEM USA Inc., designed for AC/DC current measurement applications requiring 25A sensing capability. This component delivers ratiometric voltage output with 25mV/A sensitivity and operates across industrial temperature ranges from -40°C to 105°C. The part is currently active in production with 1098 units in stock inventory.

Equivalent and substitute parts are identified when design requirements necessitate alternative sourcing due to supply constraints, inventory availability, or system integration flexibility while maintaining identical electrical and mechanical performance specifications.

Substiute Parts

LKSR 25-NP

LEM USA Inc.In Stock: 1137LKSR 25-NP Datasheet

Current PartRFQ

LESR 25-NP

LEM USA Inc.In Stock: 752LESR 25-NP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LKSR 25-NP are identified based on strict electrical and mechanical parameter equivalence. The substitution criteria are defined by the following key parameters that must remain identical:

• Current Sensing Capability: 25A
• Sensor Technology: Hall Effect, Closed Loop
• Output Configuration: Ratiometric, Voltage
• Sensitivity: 25mV/A
• Frequency Response: 300kHz
• Linearity Tolerance: ±0.1%
• Accuracy: ±1.25%
• Supply Voltage Range: 4.75V to 5.25V
• Response Time: 400ns
• Maximum Supply Current: 32.5mA
• Operating Temperature Range: -40°C to 105°C
• Polarization: Bidirectional
• Mounting Type: Through Hole
• Package Type: Module
• Compliance Standards: RoHS Compliant, REACH Unaffected

The LESR 25-NP qualifies as a parametric equivalent substitute, as it maintains all critical electrical specifications and mechanical characteristics required for direct functional replacement in applications utilizing the LKSR 25-NP.

Parameter Comparison

Engineering Selection Recommendations

Both the LKSR 25-NP and LESR 25-NP are active production components manufactured by LEM USA Inc. with full RoHS compliance and REACH unaffected status. Selection between these parts should be based on:

Inventory Availability: The LKSR 25-NP maintains 1098 units in stock, while the LESR 25-NP has 665 units available. For applications requiring immediate procurement, inventory status should be verified with the supplier.

Series Designation: The LKSR 25-NP belongs to the LKSR series, while the LESR 25-NP belongs to the LESR series. Both series are manufactured by LEM USA Inc. and maintain identical electrical and mechanical specifications for this 25A current sensing application.

Regulatory Compliance: Both parts satisfy RoHS Compliance requirements and maintain REACH Unaffected status, making them suitable for applications subject to environmental and regulatory restrictions.

Direct Substitution: The LESR 25-NP functions as a direct parametric equivalent to the LKSR 25-NP. No circuit modifications, recalibration, or design changes are required when substituting between these parts in existing applications.

Frequently Asked Questions (FAQ)

Q: Can the LESR 25-NP be used as a direct replacement for the LKSR 25-NP in existing designs?

A: Yes. The LESR 25-NP is a parametric equivalent substitute. All electrical specifications, mechanical dimensions, mounting requirements, and performance characteristics are identical. No circuit modifications or firmware adjustments are necessary.

Q: Are there differences in the output signal characteristics between LKSR 25-NP and LESR 25-NP?

A: No. Both parts deliver identical ratiometric voltage output with 25mV/A sensitivity, ±1.25% accuracy, and 400ns response time. Signal conditioning circuits and calibration factors remain unchanged.

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

A: The series designation identifies the product line within LEM USA Inc.'s current sensor portfolio. Both LKSR and LESR series maintain identical specifications for the 25A sensing application. The series designation does not affect electrical performance or mechanical compatibility.

Q: Are both parts suitable for AC/DC current measurement applications?

A: Yes. Both the LKSR 25-NP and LESR 25-NP are rated for AC/DC current measurement with bidirectional polarization, supporting applications requiring measurement of current flow in both directions.

Q: What is the operating temperature range for both parts?

A: Both parts operate across -40°C to 105°C ambient temperature range, making them suitable for industrial and automotive applications subject to wide temperature variations.

Q: Are there any supply voltage compatibility concerns when substituting between these parts?

A: No. Both parts require identical supply voltage range of 4.75V to 5.25V and draw maximum 32.5mA supply current. Existing power supply designs require no modification.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the LKSR 25-NP and LESR 25-NP are RoHS Compliant and REACH Unaffected, satisfying identical regulatory requirements for environmental and hazardous substance restrictions.

Q: What mounting considerations apply to both parts?

A: Both parts utilize through-hole mounting in module package format with tray packaging. PCB layout and mounting hole specifications remain identical between the two parts.