LF 1005-S Hall Effect Current Sensor Equivalent & Substitute Parts

Part Overview

The LF 1005-S is a closed-loop Hall Effect current sensor manufactured by LEM USA Inc., designed for AC/DC current measurement applications up to 1000A. This module provides bidirectional sensing with ratiometric current output and operates across industrial temperature ranges.

The LF 1005-S carries a "Not For New Designs" product status designation. This status indicates the part is in mature or end-of-life phase. Identifying equivalent substitute parts ensures design continuity, supply chain flexibility, and long-term project viability when the primary part becomes unavailable or when alternative sourcing is required.

Substiute Parts

LF 1005-S

LEM USA Inc.In Stock: 1258LF 1005-S Datasheet

Current PartRFQ

LF 1005-S/SP21

LEM USA Inc.In Stock: 897LF 1005-S/SP21 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LF 1005-S is determined by strict parametric equivalence across all critical electrical and mechanical specifications. The substitute part must match the following parameters without deviation:

Critical Substitution Parameters:

• Sensor Type: Hall Effect, Closed Loop
• Current Sensing Capacity: 1000A
• Number of Channels: 1
• Measurement Capability: AC/DC
• Output Configuration: Ratiometric, Current
• Frequency Response: DC ~ 150kHz
• Linearity Tolerance: ±0.1%
• Accuracy Specification: ±0.4%
• Supply Voltage Range: ±15V ~ 24V
• Response Time: 1µs
• Maximum Supply Current: 228mA
• Operating Temperature Range: -40°C ~ 85°C
• Polarization: Bidirectional
• Mounting Type: Chassis Mount
• Package Type: Module
• Regulatory Compliance: RoHS Compliant, REACH Unaffected

The LF 1005-S/SP21 meets all parametric requirements for direct substitution. The "/SP21" designation indicates a packaging or supplier variant that maintains full electrical and functional equivalence to the base LF 1005-S model.

Parameter Comparison

Engineering Selection Recommendations

Both the LF 1005-S and LF 1005-S/SP21 carry identical "Not For New Designs" product status designations, indicating both parts are in equivalent lifecycle phases. Selection between these parts should be based on the following factors:

Inventory Availability: The LF 1005-S maintains 1187 pieces in stock, while the LF 1005-S/SP21 has 856 pieces available. For immediate procurement requirements, the LF 1005-S offers greater stock depth.

Regulatory Compliance: Both parts maintain full RoHS compliance and REACH unaffected status, satisfying equivalent environmental and regulatory requirements for industrial applications.

Moisture Sensitivity: The LF 1005-S/SP21 specifies MSL 1 (Unlimited), indicating superior moisture tolerance compared to the LF 1005-S which lists MSL as Not Applicable. This distinction may be relevant for storage and handling protocols in high-humidity environments.

Functional Equivalence: Complete parametric alignment across all electrical specifications, frequency response, accuracy, and temperature operating ranges confirms full interchangeability for circuit design and application requirements.

Frequently Asked Questions (FAQ)

Q: Can the LF 1005-S/SP21 be used as a direct replacement for the LF 1005-S in existing designs?

A: Yes. The LF 1005-S/SP21 is parametrically equivalent across all electrical and mechanical specifications. No circuit modifications or recalibration are required. Both parts deliver identical current sensing performance, output characteristics, and operating parameters.

Q: What does the "/SP21" designation indicate?

A: The "/SP21" suffix represents a supplier or packaging variant of the base LF 1005-S model. This designation does not alter electrical performance or functional characteristics. It typically indicates a specific packaging configuration or supplier source while maintaining full parametric equivalence.

Q: Are there differences in moisture sensitivity between these parts?

A: The LF 1005-S/SP21 specifies MSL 1 (Unlimited), while the LF 1005-S lists MSL as Not Applicable. MSL 1 (Unlimited) indicates the part has no moisture sensitivity restrictions and does not require special storage or handling protocols. This represents an advantage for long-term storage and supply chain management.

Q: Which part should be selected for new procurement?

A: Both parts carry "Not For New Designs" status. This designation indicates neither part is recommended for new design initiation. Selection between them should be based on existing design requirements, inventory availability, and supply chain constraints rather than new product development considerations.

Q: Are the packaging formats identical?

A: Yes. Both the LF 1005-S and LF 1005-S/SP21 are supplied in Tray packaging format. No modifications to receiving, storage, or assembly processes are required when substituting between these parts.

Q: Do these parts require different supply voltage configurations?

A: No. Both parts operate identically across the ±15V ~ 24V supply voltage range. Existing power supply designs and voltage regulation circuits require no modification when substituting between these parts.

Q: What is the maximum current draw for circuit design calculations?

A: Both parts specify a maximum supply current of 228mA. This parameter should be used for power budget calculations and supply circuit design regardless of which part is selected.