FSA2467MPX Equivalent & Substitute Parts

Part Overview

The FSA2467MPX is a dual DPDT (Double Pole Double Throw) analog switch IC manufactured by onsemi, designed for signal routing and switching applications in interface circuits. This component features a 2:2 multiplexer/demultiplexer configuration with 400Ohm typical on-state resistance and operates across a supply voltage range of 1.65V to 4.3V. The FSA2467MPX is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing design support and production continuity.

Substiute Parts

FSA2467MPX

onsemiIn Stock: 29366FSA2467MPX Datasheet

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NLAS3899BMNTWG

onsemiIn Stock: 1745NLAS3899BMNTWG Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FSA2467MPX is determined by the following critical parameters:

• Switch Circuit Configuration: Must be DPDT
• Multiplexer/Demultiplexer Circuit: Must be 2:2
• Number of Circuits: Must be 2
• Voltage - Supply, Single (V+): Must support 1.65V ~ 4.3V range
• Operating Temperature: Must support -40°C ~ 85°C
• Package Compatibility: Surface mount packages with compatible pinout and footprint
• Compliance: RoHS3 compliance and MSL rating

The NLAS3899BMNTWG meets all core functional and electrical requirements for substitution. While it offers improved performance characteristics (lower on-state resistance, higher bandwidth), it maintains compatibility with the critical supply voltage and temperature operating ranges. Both parts share identical circuit topology, pin count, and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The NLAS3899BMNTWG is a direct functional substitute for the FSA2467MPX. Both components are obsolete products from onsemi with identical ROHS3 compliance and MSL ratings, ensuring regulatory and environmental compatibility.

The primary distinction between these parts lies in performance characteristics rather than functional capability. The NLAS3899BMNTWG provides superior on-state resistance (2.5Ohm versus 400Ohm), faster switching times, and significantly higher bandwidth (280MHz versus 85MHz). These improvements make the NLAS3899BMNTWG suitable for applications requiring lower signal distortion and higher frequency operation.

Both parts maintain the same supply voltage operating range (1.65V ~ 4.3V) and temperature specifications (-40°C ~ 85°C), ensuring compatibility with existing circuit designs. Package differences (16-WFQFN versus 16-VFQFN) require PCB layout verification to confirm footprint compatibility.

Frequently Asked Questions (FAQ)

Q: Can the NLAS3899BMNTWG directly replace the FSA2467MPX in existing designs?

A: Yes, the NLAS3899BMNTWG is functionally equivalent for applications requiring DPDT 2:2 switching with 1.65V to 4.3V supply operation. PCB footprint compatibility must be confirmed due to package variant differences (WFQFN versus VFQFN).

Q: What are the key differences between these substitute parts?

A: The NLAS3899BMNTWG offers lower on-state resistance (2.5Ohm versus 400Ohm), faster switching performance, and higher bandwidth capability (280MHz versus 85MHz). These differences result in reduced signal attenuation and improved high-frequency performance.

Q: Are both parts subject to the same compliance requirements?

A: Yes. Both the FSA2467MPX and NLAS3899BMNTWG are ROHS3 compliant with MSL rating of 1 (Unlimited), meeting identical regulatory and environmental standards.

Q: What package considerations apply to substitution?

A: The FSA2467MPX uses 16-WFQFN packaging while the NLAS3899BMNTWG uses 16-VFQFN packaging. Both are 16-pin surface mount packages with 3x3mm footprints, but PCB layout and reflow profile compatibility must be verified before implementation.

Q: Why are both parts classified as obsolete?

A: Obsolete status indicates these components are no longer in active production. Substitute parts should be sourced from available inventory while stock remains available.