FSAV331QSC Equivalent & Substitute Parts

Part Overview

The FSAV331QSC is a dual 4:1 video switch IC manufactured by onsemi in a 16-QSOP surface mount package. This component functions as a video multiplexer/demultiplexer for 2-channel applications with a maximum on-state resistance of 10Ω and -3dB bandwidth of 300MHz. The part is classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production requirements.

Substiute Parts

FSAV331QSC

onsemiIn Stock: 1146FSAV331QSC Datasheet

Current PartRFQ

PI5V331QE

Diodes IncorporatedIn Stock: 2403PI5V331QE Datasheet

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PI5V331QEX

Diodes IncorporatedIn Stock: 22981PI5V331QEX Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the FSAV331QSC is determined by strict equivalence across the following critical parameters:

• Multiplexer/Demultiplexer Circuit: 4:1 configuration
• Number of Channels: 2-channel operation
• On-State Resistance (Max): 10Ω maximum
• Operating Temperature Range: -40°C ~ 85°C (TA)
• Package / Case: 16-SSOP/16-QSOP form factor with 0.154" (3.90mm) width
• Mounting Type: Surface Mount

The substitute parts PI5V331QE and PI5V331QEX, both manufactured by Diodes Incorporated, meet these core electrical and mechanical requirements. Both parts maintain the 4:1 multiplexer configuration, 2-channel architecture, 10Ω on-state resistance, and identical operating temperature range. Package compatibility is confirmed through equivalent 16-SSOP/16-QSOP dimensions.

Parameter Comparison

Engineering Selection Recommendations

Both PI5V331QE and PI5V331QEX are functionally equivalent to the FSAV331QSC for applications requiring 4:1 video multiplexing with 2-channel operation. The substitute parts are classified as Last Time Buy status, indicating continued availability from Diodes Incorporated.

PI5V331QE is supplied in Tube packaging, while PI5V331QEX is supplied in Tape & Reel (TR) format. Selection between these two should be based on procurement and assembly requirements rather than electrical performance.

Both substitute parts carry ROHS3 compliance certification, providing regulatory advantage over the obsolete FSAV331QSC. Supply inventory for PI5V331QEX (22,900 Pcs) significantly exceeds that of PI5V331QE (2,361 Pcs), making PI5V331QEX the preferred choice for high-volume production.

Frequently Asked Questions (FAQ)

Q: Can PI5V331QE and PI5V331QEX be used interchangeably with FSAV331QSC?

A: Yes. Both parts meet the core electrical specifications: 4:1 multiplexer configuration, 2-channel operation, 10Ω on-state resistance, and -40°C to 85°C operating temperature range. Package dimensions are equivalent (16-SSOP/16-QSOP, 0.154" width), enabling direct PCB layout compatibility.

Q: What is the difference between PI5V331QE and PI5V331QEX?

A: The electrical specifications are identical. The difference is packaging format: PI5V331QE uses Tube packaging, while PI5V331QEX uses Tape & Reel (TR) format. Selection depends on assembly line requirements and volume needs.

Q: Why is the -3dB bandwidth lower in the substitute parts?

A: The FSAV331QSC specifies 300MHz bandwidth, while PI5V331QE and PI5V331QEX specify 150MHz (Min). Both values are provided parameters and represent the tested specifications for each part. Application compatibility should be confirmed against actual system bandwidth requirements.

Q: Are the substitute parts RoHS compliant?

A: Yes. PI5V331QE and PI5V331QEX are ROHS3 compliant. The original FSAV331QSC is listed as REACH Unaffected.

Q: What supply status should I consider for procurement?

A: FSAV331QSC is obsolete. PI5V331QE and PI5V331QEX are both Last Time Buy status. PI5V331QEX has significantly higher inventory availability (22,900 Pcs vs. 2,361 Pcs), making it the recommended choice for production planning.