MAX303MSE/PR Equivalent & Substitute Parts

Part Overview

The MAX303MSE/PR is an analog interface switch IC manufactured by Analog Devices Inc./Maxim Integrated. This component functions as a general-purpose analog switch for signal routing and multiplexing applications. The part is classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations. Equivalent parts must maintain functional compatibility across switching characteristics, electrical performance, and package specifications.

Substiute Parts

MAX303MSE/PR

Analog Devices Inc./Maxim IntegratedIn Stock: 1155MAX303MSE/PR Datasheet

Current PartRFQ

MAX303MSE/PR+

Analog Devices Inc./Maxim IntegratedIn Stock: 765MAX303MSE/PR+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The MAX303MSE/PR+ qualifies as a direct substitute based on the following criteria:

Shared Base Product Number: Both parts derive from the MAX303 product family, establishing a direct lineage relationship.

Functional Equivalence: The MAX303MSE/PR+ is specified as a 2-circuit SPDT (Single Pole Double Throw) analog switch with 2:1 multiplexer/demultiplexer configuration. This architecture aligns with the switching functionality required of the original MAX303MSE/PR.

Compliance Alignment: Both components maintain ROHS3 compliance, MSL Level 1 rating, and REACH unaffected status, ensuring regulatory compatibility in applications requiring these certifications.

Active Product Status: The MAX303MSE/PR+ maintains active product status with current manufacturing and inventory availability, providing long-term supply continuity compared to the obsolete original part.

Electrical Performance Parameters: The substitute part specifies defined switching characteristics including on-state resistance, supply voltage ranges, switching time, and leakage current, enabling direct electrical performance comparison.

Parameter Comparison

Engineering Selection Recommendations

Substitution Basis: The MAX303MSE/PR+ is a direct equivalent derived from the same MAX303 product family with identical manufacturer origin. The substitute maintains all required compliance certifications (ROHS3, REACH unaffected) and moisture sensitivity rating, ensuring regulatory and environmental compatibility.

Product Lifecycle Advantage: Selection of the MAX303MSE/PR+ addresses the obsolescence status of the original part. The active product status of the substitute ensures continued manufacturing support, documented specifications, and reliable supply chain availability for both immediate replacement and future procurement requirements.

Compliance Continuity: Both components satisfy identical regulatory requirements, eliminating the need for compliance re-evaluation in applications where the original part was previously qualified.

Frequently Asked Questions (FAQ)

Q: Why is the MAX303MSE/PR+ considered a direct substitute for the MAX303MSE/PR?

A: Both parts share the MAX303 base product number and are manufactured by Analog Devices Inc./Maxim Integrated. The substitute maintains identical compliance certifications (ROHS3, REACH unaffected) and moisture sensitivity rating, establishing direct functional and regulatory equivalence.

Q: What is the primary advantage of using MAX303MSE/PR+ over the obsolete MAX303MSE/PR?

A: The MAX303MSE/PR+ maintains active product status with current manufacturing and inventory availability. This ensures long-term supply continuity, documented technical specifications, and manufacturer support compared to the obsolete original part.

Q: Are there packaging considerations when substituting these parts?

A: Both parts are specified with SOIC packaging. Packaging designation is consistent between the original and substitute, ensuring mechanical and electrical compatibility in existing PCB layouts and socket configurations.

Q: What electrical parameters define the switching capability of the MAX303MSE/PR+?

A: The substitute is specified as a 2-circuit SPDT analog switch with 30Ohm maximum on-state resistance, supporting single supply voltage from 10V to 30V or dual supply from ±4.5V to ±20V. Switch timing is specified at 150ns maximum turn-on and 100ns maximum turn-off.

Q: Are there any compliance differences between the original and substitute parts?

A: No. Both components maintain identical ROHS3 compliance status, MSL Level 1 rating, and REACH unaffected designation, eliminating the need for compliance re-qualification in regulated applications.