FSA2267AL10X Equivalent & Substitute Parts

Part Overview

The FSA2267AL10X is a dual SPDT audio switch IC manufactured by onsemi in a 10-MicroPak surface mount package. This component functions as a 2:1 multiplexer/demultiplexer with low on-state resistance suitable for audio signal routing applications. The FSA2267AL10X is classified as obsolete, making identification of compatible substitute components essential for ongoing design support and production continuity.

Substiute Parts

FSA2267AL10X

onsemiIn Stock: 17758FSA2267AL10X Datasheet

Current PartRFQ

TS5A26542YZTR

Texas InstrumentsIn Stock: 41657TS5A26542YZTR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FSA2267AL10X is determined by the following critical parameters:

• Switch Configuration: SPDT topology with 2:1 multiplexer/demultiplexer functionality
• Channel Count: Dual-channel (2 circuits) requirement
• On-State Resistance: Maximum 350mOhm specification for audio signal integrity
• Supply Voltage Range: Single supply operation between 2.3V and 4.3V
• Bandwidth Performance: Minimum 45MHz -3dB bandwidth for audio frequency response
• Operating Temperature Range: -40°C to 85°C compatibility
• Compliance: ROHS3 compliance and MSL Level 1 rating

The TS5A26542YZTR from Texas Instruments meets these substitution criteria as an active product with equivalent functional architecture, though with enhanced electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The TS5A26542YZTR is the manufacturer-recommended substitute for the obsolete FSA2267AL10X. Both components maintain ROHS3 compliance and MSL Level 1 ratings, ensuring equivalent environmental and regulatory compatibility.

The TS5A26542YZTR is an active product with ongoing manufacturer support, addressing the obsolescence status of the FSA2267AL10X. The substitute maintains identical switch topology, channel configuration, and operating temperature specifications.

Design considerations include the on-state resistance differential (750mOhm versus 350mOhm typical) and the -3dB bandwidth variance (43MHz versus 45MHz). The substitute's expanded supply voltage range (2.25V ~ 5.5V) provides additional operational flexibility compared to the original specification (2.3V ~ 4.3V).

Frequently Asked Questions (FAQ)

Q: Can the TS5A26542YZTR directly replace the FSA2267AL10X in existing designs?

A: The TS5A26542YZTR provides functional equivalence as a dual SPDT 2:1 multiplexer/demultiplexer. The higher on-state resistance (750mOhm versus 350mOhm) may affect signal attenuation in audio applications and should be evaluated against circuit requirements. The slightly lower bandwidth (43MHz versus 45MHz) remains suitable for audio frequency ranges.

Q: What are the package differences between these components?

A: The FSA2267AL10X uses a 10-UFQFN Exposed Pad package, while the TS5A26542YZTR uses a 12-DSBGA (1.9x1.4) package. PCB layout modifications are required for substitution due to different pin configurations and footprints.

Q: Are both components RoHS compliant?

A: Yes, both the FSA2267AL10X and TS5A26542YZTR are ROHS3 compliant with MSL Level 1 ratings, ensuring equivalent environmental and regulatory compatibility.

Q: What is the supply voltage compatibility between these parts?

A: The FSA2267AL10X operates at 2.3V ~ 4.3V single supply, while the TS5A26542YZTR operates at 2.25V ~ 5.5V. The substitute accommodates the original voltage range and extends operational capability to higher supply voltages.

Q: Why is the TS5A26542YZTR recommended over the FSA2267AL10X?

A: The TS5A26542YZTR is an active product with ongoing manufacturer support, whereas the FSA2267AL10X is obsolete. Active product status ensures continued availability, technical documentation, and manufacturing consistency for production applications.