MC33901SEFR2 Equivalent & Substitute Parts

Part Overview

The MC33901SEFR2 is a 1/1 CANbus transceiver IC manufactured by NXP USA Inc., housed in an 8-SOIC surface mount package. This component is classified as obsolete, indicating it has been discontinued and is no longer in active production. Due to its obsolete status, sourcing new units from original inventory becomes increasingly difficult. Identifying qualified substitute parts ensures design continuity and maintains system functionality for applications requiring CANbus interface capabilities.

Substiute Parts

MC33901SEFR2

NXP USA Inc.In Stock: 918MC33901SEFR2 Datasheet

Current PartRFQ

MAX3059ASA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 30858MAX3059ASA+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MC33901SEFR2 is determined by the following critical parameters:

• Protocol Compatibility: Both parts must support CANbus communication protocol
• Driver/Receiver Configuration: 1/1 transceiver architecture (one driver, one receiver) must be maintained
• Package Compatibility: 8-SOIC surface mount package ensures PCB layout compatibility
• Electrical Specifications: Supply voltage range (4.5V ~ 5.5V) and operating temperature range (-40°C ~ 125°C) must be met or exceeded
• Regulatory Compliance: RoHS3 compliance and REACH unaffected status ensure environmental and regulatory alignment

The MAX3059ASA+T meets all these substitution criteria and is classified as an active product, providing long-term availability and supply chain stability.

Parameter Comparison

Engineering Selection Recommendations

The MAX3059ASA+T is the qualified substitute for the MC33901SEFR2 based on the following engineering criteria:

Functional Equivalence: Both devices provide identical 1/1 CANbus transceiver functionality within the same 8-SOIC package footprint, ensuring direct pin-compatible replacement.

Regulatory Compliance: Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying environmental and regulatory requirements for equivalent component selection.

Supply Chain Advantage: The MAX3059ASA+T holds active product status with 30,800 units in stock, compared to the obsolete MC33901SEFR2 with limited remaining inventory. This transition ensures long-term design support and eliminates obsolescence risk.

Electrical Compatibility: Identical supply voltage range (4.5V ~ 5.5V) and operating temperature range (-40°C ~ 125°C) guarantee seamless integration into existing circuit designs without modification.

Improved Reliability: The MAX3059ASA+T features MSL 1 (unlimited moisture sensitivity), compared to MSL 3 for the original part, providing superior handling and storage characteristics.

Frequently Asked Questions (FAQ)

Q: Can the MAX3059ASA+T be used as a direct replacement for the MC33901SEFR2?

A: Yes. Both devices share identical package geometry (8-SOIC), pin configuration (1/1 transceiver), supply voltage range (4.5V ~ 5.5V), and operating temperature range (-40°C ~ 125°C). No circuit modifications are required for substitution.

Q: What is the primary reason for substituting the MC33901SEFR2?

A: The MC33901SEFR2 is classified as obsolete and no longer manufactured. The MAX3059ASA+T is an active product with established supply chain availability, ensuring long-term component sourcing and design continuity.

Q: Are there any electrical performance differences between these parts?

A: Both devices meet the same supply voltage and operating temperature specifications. The MAX3059ASA+T includes additional specifications such as full duplex operation and 1Mbps data rate capability, providing equivalent or enhanced performance.

Q: Does the package footprint remain identical?

A: Yes. Both parts use the 8-SOIC (0.154", 3.90mm Width) surface mount package, ensuring PCB layout compatibility without redesign.

Q: What is the significance of the MSL rating difference?

A: The MAX3059ASA+T features MSL 1 (unlimited moisture sensitivity) compared to MSL 3 (168 hours) for the MC33901SEFR2. This indicates superior moisture resistance and more flexible storage and handling conditions for the substitute part.

Q: Are both parts RoHS compliant?

A: Yes. Both the MC33901SEFR2 and MAX3059ASA+T are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.