SMP18FS Equivalent & Substitute Parts

Part Overview

The SMP18FS is a Sample and Hold integrated circuit manufactured by Analog Devices Inc., designed for data acquisition applications. This component is classified as a linear amplifier and is packaged in a 16-SOIC surface mount configuration. The SMP18FS is currently listed with an obsolete product status, making identification of equivalent and substitute parts essential for ongoing design support, maintenance, and production continuity.

Substiute Parts

SMP18FS

Analog Devices Inc.In Stock: 1299SMP18FS Datasheet

Current PartRFQ

SMP18FSZ

Analog Devices Inc.In Stock: 1858SMP18FSZ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMP18FS is determined by strict equivalence across the following critical parameters:

Functional Equivalence: Both the main part and substitute must operate as Sample and Hold integrated circuits within the Linear Amplifiers category for Data Acquisition applications.

Package Compatibility: The 16-SOIC (0.154", 3.90mm Width) surface mount package is mandatory for mechanical and electrical compatibility with existing printed circuit board designs.

Manufacturer Consistency: Analog Devices Inc. maintains the SMP18 base product line, ensuring design continuity and technical support alignment.

Environmental and Regulatory Compliance: Moisture Sensitivity Level 1 (Unlimited), ECCN EAR99, and HTSUS 8542.33.0001 classification must be maintained across all substitute parts.

The SMP18FSZ qualifies as a direct substitute based on these parameters. The primary distinction is product status: the SMP18FSZ is active, whereas the SMP18FS is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The SMP18FSZ is the direct substitute for the obsolete SMP18FS. Both components share identical functional specifications, package geometry, and regulatory classifications. The SMP18FSZ is the preferred selection for new designs and production continuity due to its active product status.

The SMP18FSZ provides additional compliance documentation: ROHS3 Compliant and REACH Unaffected certifications. These certifications confirm adherence to current environmental and hazardous substance regulations, supporting long-term supply chain reliability and regulatory compliance requirements.

For applications currently utilizing the SMP18FS, transition to the SMP18FSZ requires no design modifications. Pin configuration, electrical performance, and mechanical mounting remain identical. The component substitution is direct and does not necessitate circuit redesign or board layout changes.

Frequently Asked Questions (FAQ)

Q: Can the SMP18FSZ directly replace the SMP18FS without circuit modifications?

A: Yes. The SMP18FSZ is a direct substitute. Both components share identical package geometry (16-SOIC), pin configuration, and functional specifications for Sample and Hold data acquisition applications. No circuit redesign is required.

Q: What is the primary reason for substituting the SMP18FS?

A: The SMP18FS is classified as obsolete. The SMP18FSZ is the active equivalent from Analog Devices Inc., ensuring continued availability, technical support, and supply chain reliability.

Q: Are there packaging differences between the SMP18FS and SMP18FSZ?

A: Both components are supplied in 16-SOIC surface mount packages with identical dimensions (0.154", 3.90mm Width). The SMP18FSZ is available in Tube packaging, while the SMP18FS packaging specification was not provided.

Q: Does the SMP18FSZ meet current environmental compliance standards?

A: Yes. The SMP18FSZ is ROHS3 Compliant and REACH Unaffected, confirming compliance with current environmental and hazardous substance regulations.

Q: Are there inventory considerations when selecting between these parts?

A: The SMP18FSZ has higher current inventory availability (1831 Pcs) compared to the SMP18FS (1202 Pcs). For new production and long-term supply assurance, the SMP18FSZ is the recommended selection.

Q: What is the Moisture Sensitivity Level for both components?

A: Both the SMP18FS and SMP18FSZ have Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions during storage, handling, or assembly.