FHS 40-P/SP600 Current Sensor - Equivalent & Substitute Parts

Part Overview

The FHS 40-P/SP600 is a Hall Effect current sensor manufactured by LEM USA Inc., designed for AC/DC current measurement applications with a 100A sensing range. This component operates as an open-loop, bidirectional sensor with ratiometric voltage output, housed in an 8-SOIC surface mount package.

The FHS 40-P/SP600 carries an Obsolete product status. Locating equivalent or substitute components is necessary for ongoing production support, design updates, and inventory replenishment where original stock is unavailable or depleted.

Substiute Parts

FHS 40-P/SP600

LEM USA Inc.In Stock: 30122FHS 40-P/SP600 Datasheet

Current PartRFQ

FHS AH 600

LEM USA Inc.In Stock: 4623FHS AH 600 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FHS 40-P/SP600 is determined by strict alignment of the following critical parameters:

Core Substitution Criteria:

• Sensor Type: Hall Effect, Open Loop
• Current Sensing Capability: 100A
• Number of Channels: 1
• Output Configuration: Ratiometric, Voltage
• Sensitivity: 600mV/mT
• Package Type: 8-SOIC (0.154", 3.90mm Width)
• Mounting Type: Surface Mount
• Polarization: Bidirectional
• Operating Temperature Range: -40°C ~ 125°C
• Maximum Supply Current: 19mA

Acceptable Parameter Variations:

• Supply Voltage Range: Substitute must accommodate the original operating range or provide a superset range
• Frequency Response: Variations permitted if application requirements are met
• Linearity: Variations permitted within acceptable measurement tolerances
• Product Status: Active status preferred for long-term availability

The FHS AH 600 meets all core substitution criteria and is classified as a manufacturer-recommended equivalent.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: FHS AH 600

The FHS AH 600 is the manufacturer-recommended substitute for the obsolete FHS 40-P/SP600. This component maintains functional and electrical equivalence across all critical parameters required for 100A Hall Effect current sensing applications.

Compliance and Certification Alignment:

• Both components are RoHS compliant; the FHS AH 600 meets the current ROHS3 standard
• Both components are REACH Unaffected
• Both components carry identical ECCN (EAR99) and HTSUS classifications
• Moisture Sensitivity Level (MSL) is identical at 3 (168 Hours)

Availability and Production Status:

• The FHS 40-P/SP600 is Obsolete with limited remaining inventory (30,100 pcs)
• The FHS AH 600 is Active with current manufacturing support (4,612 pcs in stock)
• Active product status ensures long-term availability for future production runs and design iterations

Performance Considerations:

• The FHS AH 600 provides enhanced frequency response (160kHz vs. 105kHz), offering improved bandwidth for dynamic current measurement applications
• Linearity tolerance widens slightly (±0.5% vs. ±0.4%), remaining within acceptable measurement accuracy for standard industrial applications
• Supply voltage range expands to 4.5V minimum, providing improved compatibility with lower-voltage power supplies

Packaging Format:

• The FHS AH 600 is supplied in Tape & Reel (TR) format, standard for automated assembly processes
• Original FHS 40-P/SP600 packaging format is not specified; verify packaging requirements for your assembly process

Frequently Asked Questions (FAQ)

Q: Can the FHS AH 600 be used as a direct replacement for the FHS 40-P/SP600 in existing designs?

A: Yes. The FHS AH 600 maintains identical electrical and mechanical specifications across all critical parameters: 100A current sensing, Hall Effect open-loop operation, ratiometric voltage output, 600mV/mT sensitivity, 8-SOIC package, and bidirectional polarization. Pin-to-pin compatibility is confirmed.

Q: What are the differences between these two parts?

A: The primary differences are: (1) Product Status—FHS 40-P/SP600 is Obsolete; FHS AH 600 is Active; (2) Frequency Response—FHS AH 600 operates at 160kHz vs. 105kHz; (3) Supply Voltage Range—FHS AH 600 accepts 4.5V minimum vs. 4.75V; (4) Linearity—FHS AH 600 specifies ±0.5% vs. ±0.4%; (5) Packaging—FHS AH 600 is supplied in Tape & Reel format. All differences are compatible with standard application requirements.

Q: Is the 8-SOIC package identical between both parts?

A: Yes. Both components use the 8-SOIC (0.154", 3.90mm Width) package. PCB footprints and land patterns are identical. No layout modifications are required.

Q: Does the higher frequency response of the FHS AH 600 affect circuit design?

A: No. The increased frequency response (160kHz vs. 105kHz) in the FHS AH 600 represents improved performance. It does not require circuit modifications and is backward-compatible with designs specified for the original 105kHz bandwidth.

Q: Are there any compliance or certification differences?

A: Both components are RoHS compliant, REACH Unaffected, and carry identical regulatory classifications. The FHS AH 600 meets the current ROHS3 standard, representing updated compliance documentation. No functional or safety differences exist.

Q: What is the impact of the linearity tolerance difference?

A: The FHS AH 600 specifies ±0.5% linearity vs. ±0.4% for the original part. This 0.1% widening remains within acceptable measurement tolerances for industrial current sensing applications and does not affect system-level accuracy in standard configurations.

Q: Is the Tape & Reel packaging compatible with my assembly process?

A: Tape & Reel (TR) packaging is the standard format for automated surface mount assembly. If your manufacturing process uses automated pick-and-place equipment, this packaging is compatible. Verify your assembly equipment specifications if manual or specialized handling is required.

Q: What is the inventory status for each part?

A: FHS 40-P/SP600 (Obsolete): 30,100 pcs available. FHS AH 600 (Active): 4,612 pcs available. For long-term production planning, the Active status of FHS AH 600 ensures continued availability through the manufacturer.