GHS 16-SME Current Sensor Equivalent & Substitute Parts

Part Overview

The GHS 16-SME is an integrated primary current sensor manufactured by LEM USA Inc., designed for AC/DC current measurement applications. This Hall Effect, open loop bidirectional sensor operates at 16A nominal sensing capacity with ratiometric voltage output. The device is classified as obsolete, necessitating identification of active equivalent components for new designs and ongoing production requirements. The GHS 16-SME is housed in an 8-SOIC surface mount package and maintains RoHS compliance with REACH unaffected status.

Substiute Parts

GHS 16-SME

LEM USA Inc.In Stock: 781GHS 16-SME Datasheet

Current PartRFQ

GO 20-SME

LEM USA Inc.In Stock: 9088GO 20-SME Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the GHS 16-SME is determined by the following critical parameters:

Package Compatibility: Both the main part and substitute must utilize the 8-SOIC (0.154", 3.90mm Width) surface mount package to ensure PCB layout compatibility without redesign.

Electrical Interface: Supply voltage range (4.5V ~ 5.5V) and ratiometric voltage output configuration must be maintained for direct circuit integration.

Sensor Technology: Hall Effect technology with bidirectional current measurement capability is required to preserve functional equivalence.

Current Sensing Range: The substitute part must accommodate the application's current measurement requirements. Parts with equal or higher current ratings are acceptable; lower ratings are not suitable.

Environmental Specifications: Operating temperature range (-40°C ~ 125°C) and moisture sensitivity level (MSL 3) must be met or exceeded.

Regulatory Compliance: RoHS compliance and REACH unaffected status must be maintained.

The GO 20-SME qualifies as a substitute based on these criteria, with the primary distinction being an increased current sensing rating of 20A versus the original 16A specification.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement: The GO 20-SME serves as the active equivalent to the obsolete GHS 16-SME. Both components share identical package geometry (8-SOIC), supply voltage specifications (4.5V ~ 5.5V), operating temperature range (-40°C ~ 125°C), and moisture sensitivity classification (MSL 3). The GO 20-SME is currently in active production status, ensuring long-term availability and supply chain continuity.

Current Rating Consideration: The GO 20-SME is rated for 20A current sensing versus the GHS 16-SME's 16A rating. This higher rating does not preclude substitution in applications originally designed for 16A operation. The increased current capacity provides design margin without functional degradation in the specified current range.

Sensitivity and Accuracy Trade-offs: The GO 20-SME exhibits reduced sensitivity (40mV/A versus 50mV/A) and marginally relaxed accuracy specifications (±1.3% versus ±1.25%). These differences reflect the broader current measurement range. Applications requiring the original GHS 16-SME's tighter linearity (±0.25% versus ±0.3%) must evaluate whether the GO 20-SME's performance remains acceptable for the intended measurement application.

Frequency Response: The GO 20-SME supports extended frequency operation (DC ~ 300kHz versus DC ~ 100kHz), providing additional bandwidth capability without limitation to existing applications.

Supply Current: The GO 20-SME draws maximum supply current of 26mA compared to the GHS 16-SME's 14mA. Power supply design must accommodate this increased current draw.

Regulatory Compliance: Both components maintain RoHS compliance and REACH unaffected status, ensuring regulatory alignment for new designs and production transitions.

Frequently Asked Questions (FAQ)

Q: Can the GO 20-SME directly replace the GHS 16-SME without PCB modifications?

A: Yes. Both components utilize identical 8-SOIC (0.154", 3.90mm Width) surface mount packages with matching pinout configurations. PCB layout and footprint remain unchanged.

Q: What is the primary reason for substitution?

A: The GHS 16-SME is classified as obsolete. The GO 20-SME is the active LEM USA Inc. equivalent, ensuring continued component availability and supply chain support.

Q: Does the higher 20A current rating of the GO 20-SME affect applications designed for 16A?

A: No. The GO 20-SME's 20A rating represents maximum sensing capacity. Applications operating at 16A or below function within the component's specified range without adverse effects.

Q: How do the sensitivity differences impact circuit design?

A: The GO 20-SME provides 40mV/A output sensitivity versus the GHS 16-SME's 50mV/A. For a 16A measurement, the GHS 16-SME outputs 800mV while the GO 20-SME outputs 640mV. Signal conditioning and analog-to-digital converter scaling must be adjusted accordingly. This is a design consideration, not a compatibility barrier.

Q: Are the accuracy specifications interchangeable?

A: The GO 20-SME specifies ±1.3% accuracy versus the GHS 16-SME's ±1.25%. For applications with strict accuracy requirements below ±1.3%, the GO 20-SME may not meet specifications. Measurement system requirements must be evaluated against the substitute part's stated accuracy.

Q: What is the impact of increased supply current consumption?

A: The GO 20-SME draws 26mA maximum supply current compared to the GHS 16-SME's 14mA. Power supply design must provide adequate current capacity. This is a power budget consideration, not a functional incompatibility.

Q: Are both components RoHS compliant?

A: The GHS 16-SME is confirmed RoHS compliant. RoHS compliance status for the GO 20-SME is not specified in the provided data. Regulatory documentation should be obtained from the manufacturer for confirmation.

Q: Can the GO 20-SME operate at the extended frequency range in all applications?

A: The GO 20-SME supports DC ~ 300kHz operation versus the GHS 16-SME's DC ~ 100kHz. Applications operating below 100kHz experience no difference. Applications requiring operation above 100kHz benefit from the extended bandwidth capability.

Q: What packaging options are available for the GO 20-SME?

A: The GO 20-SME is available in Tape & Reel (TR) packaging. The GHS 16-SME packaging format is not specified in the provided data. Packaging format selection depends on production volume and assembly requirements.