MAX359C/D Equivalent & Substitute Parts

Part Overview

The MAX359C/D is a 2-circuit IC switch with SP4T (single-pole, 4-throw) configuration and 1.8kOhm on-state resistance, manufactured by Analog Devices Inc./Maxim Integrated. This die-form component is classified as obsolete, making identification of suitable substitutes essential for ongoing production and maintenance applications. The obsolete status necessitates sourcing alternative components that maintain electrical and mechanical compatibility with existing designs.

Substiute Parts

MAX359C/D

Analog Devices Inc./Maxim IntegratedIn Stock: 914MAX359C/D Datasheet

Current PartRFQ

MAX359CWE+

Analog Devices Inc./Maxim IntegratedIn Stock: 3138MAX359CWE+ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX359C/D is determined by strict equivalence across the following critical parameters:

• Switch Configuration: SP4T topology with 2 circuits and 4:1 multiplexer/demultiplexer function
• Electrical Performance: On-state resistance of 1.8kOhm maximum, dual supply voltage range ±4.5V ~ 18V, maximum leakage current of 10µA, and switching time specifications of 300ns (typical)
• Compliance & Certification: ROHS3 compliance and MSL Level 1 rating
• Manufacturer Continuity: Parts from Analog Devices Inc./Maxim Integrated product line

The MAX359CWE+ qualifies as a direct substitute based on identical electrical specifications and functional parameters. The primary distinction is packaging format: the original MAX359C/D is supplied as a die, while the MAX359CWE+ is packaged in 16-SOIC form factor, requiring appropriate integration methodology for equivalent circuit performance.

Parameter Comparison

Engineering Selection Recommendations

The MAX359CWE+ is the active-status substitute for the obsolete MAX359C/D. Both components maintain identical electrical specifications, functional topology, and compliance certifications (ROHS3, MSL Level 1). The MAX359CWE+ offers extended operating temperature range (0°C ~ 75°C versus 0°C ~ 70°C), providing additional thermal margin in applications requiring higher temperature operation.

Selection of the MAX359CWE+ is appropriate for new designs and production continuity where the die form factor of the original MAX359C/D cannot be accommodated. The 16-SOIC package format of the MAX359CWE+ requires circuit board integration compatible with standard surface-mount assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the MAX359CWE+ directly replace the MAX359C/D in existing designs?

A: Electrical substitution is complete. The MAX359CWE+ maintains all critical electrical parameters: SP4T switch configuration, 1.8kOhm on-state resistance, ±4.5V ~ 18V dual supply voltage, 300ns switching time, and 10µA maximum leakage current. Physical integration differs due to packaging: MAX359C/D is supplied as a die requiring hybrid or custom packaging, while MAX359CWE+ is a standard 16-SOIC surface-mount component. Design integration methodology must accommodate this packaging difference.

Q: What is the significance of the operating temperature difference between these parts?

A: The MAX359C/D operates across 0°C ~ 70°C, while the MAX359CWE+ extends to 0°C ~ 75°C. This 5-degree difference provides additional thermal headroom in the MAX359CWE+. For applications operating within the 0°C ~ 70°C range, both components are functionally equivalent. Applications requiring operation above 70°C must use the MAX359CWE+.

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

A: Both components carry identical compliance certifications: ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating. No compliance barriers exist to substitution.

Q: Why is the MAX359C/D classified as obsolete?

A: Obsolescence reflects Analog Devices Inc./Maxim Integrated's discontinuation of the die-form packaging option. The MAX359CWE+ represents the active production alternative, maintaining the same silicon design in a standard surface-mount package format.