LKSR 15-NP Hall Effect Current Sensor Equivalent & Substitute Parts

Part Overview

The LKSR 15-NP is a 15A unipolar Hall Effect current sensor manufactured by LEM USA Inc., designed for AC/DC current measurement applications. This closed-loop bidirectional module delivers ratiometric voltage output with high linearity and accuracy specifications. The part is Active status and RoHS Compliant, suitable for industrial measurement and control systems requiring precise current sensing in the 15A range.

Equivalent and substitute parts are identified based on matching electrical performance parameters, mechanical compatibility, and functional equivalence within the Hall Effect current sensor category.

Key Parameters

Parameter	Value
Current Sensing Range	15A
Sensor Type	Hall Effect, Closed Loop
Output Type	Ratiometric, Voltage
Sensitivity	41.67 mV/A
Linearity	±0.1%
Accuracy	±1.25%
Frequency Response	300 kHz
Response Time	400 ns
Supply Voltage	4.75V to 5.25V
Supply Current (Max)	27.5 mA
Operating Temperature	-40°C to 105°C
Polarization	Bidirectional
Mounting Type	Through Hole
Package Type	Module
Packaging Format	Tray
RoHS Compliance	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the LKSR 15-NP are identified as parametric equivalents within the LEM USA Inc. Hall Effect current sensor product line. Substitution is valid when all critical electrical and mechanical parameters match exactly:

Critical Substitution Parameters:

Current sensing capacity: 15A
Sensor technology: Hall Effect, Closed Loop
Output configuration: Ratiometric, Voltage
Sensitivity: 41.67 mV/A
Linearity: ±0.1%
Accuracy: ±1.25%
Frequency response: 300 kHz
Response time: 400 ns
Supply voltage range: 4.75V to 5.25V
Supply current maximum: 27.5 mA
Operating temperature range: -40°C to 105°C
Polarization: Bidirectional
Mounting: Through Hole
Package: Module format in Tray packaging

The substitute parts LPSR 15-NP and LXSR 15-NPS meet all specified parameters and are direct functional equivalents.

Parameter Comparison

Parameter	LKSR 15-NP	LPSR 15-NP	LXSR 15-NPS
Manufacturer	LEM USA Inc.	LEM USA Inc.	LEM USA Inc.
Current Sensing	15A	15A	15A
Sensor Type	Hall Effect, Closed Loop	Hall Effect, Closed Loop	Hall Effect, Closed Loop
Number of Channels	1	1	1
Output	Ratiometric, Voltage	Ratiometric, Voltage	Ratiometric, Voltage
Sensitivity	41.67 mV/A	41.67 mV/A	41.67 mV/A
Frequency	300 kHz	300 kHz	300 kHz
Linearity	±0.1%	±0.1%	±0.1%
Accuracy	±1.25%	±1.25%	±1.25%
Supply Voltage	4.75V to 5.25V	4.75V to 5.25V	4.75V to 5.25V
Response Time	400 ns	400 ns	400 ns
Supply Current (Max)	27.5 mA	27.5 mA	27.5 mA
Operating Temperature	-40°C to 105°C	-40°C to 105°C	-40°C to 105°C
Polarization	Bidirectional	Bidirectional	Bidirectional
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	Module	Module	Module
Packaging	Tray	Tray	Tray
Product Status	Active	Active	Active
RoHS Status	RoHS Compliant	RoHS Compliant	RoHS Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99	EAR99
HTSUS Code	9030.33.3800	9030.33.3800	9030.33.3800

Engineering Selection Recommendations

All three parts—LKSR 15-NP, LPSR 15-NP, and LXSR 15-NPS—are functionally equivalent and interchangeable based on electrical and mechanical specifications. Selection between these parts is determined by availability and inventory status:

LKSR 15-NP: 908 units in stock
LPSR 15-NP: 688 units in stock
LXSR 15-NPS: 832 units in stock

All parts carry Active product status, RoHS Compliance certification, and REACH Unaffected designation, confirming regulatory compliance for industrial applications. The MSL rating of 1 (Unlimited) indicates no moisture sensitivity restrictions during storage or handling.

Frequently Asked Questions (FAQ)

Q: Can LPSR 15-NP and LXSR 15-NPS be used interchangeably with LKSR 15-NP?

A: Yes. All three parts share identical electrical performance parameters, including 15A current sensing, 41.67 mV/A sensitivity, ±0.1% linearity, ±1.25% accuracy, 300 kHz frequency response, and 400 ns response time. Mechanical compatibility is confirmed through matching Through Hole mounting, Module package type, and Tray packaging format.

Q: Are there any differences in compliance or certification between these parts?

A: No. All three parts are RoHS Compliant, REACH Unaffected, classified as EAR99 for export control, and share the same HTSUS code (9030.33.3800). Moisture sensitivity level is identical at MSL 1 (Unlimited) for all parts.

Q: What determines whether a part is a valid substitute?

A: Substitution validity is based on exact matching of critical parameters: current sensing range (15A), sensor type (Hall Effect, Closed Loop), output type (Ratiometric, Voltage), sensitivity (41.67 mV/A), linearity (±0.1%), accuracy (±1.25%), frequency response (300 kHz), response time (400 ns), supply voltage (4.75V to 5.25V), maximum supply current (27.5 mA), operating temperature range (-40°C to 105°C), polarization (Bidirectional), and mounting configuration (Through Hole Module).

Q: Can these parts be used in applications requiring AC/DC current measurement?

A: Yes. All three parts are specified for AC/DC current measurement with bidirectional polarization, enabling measurement of current flow in both directions.

Q: Are there any packaging or handling considerations?

A: All parts are supplied in Tray packaging with MSL rating of 1 (Unlimited), indicating no special moisture control requirements during storage or transport.

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