FSAV330MX Equivalent & Substitute Parts

Part Overview

The FSAV330MX is a quad 2:1 video switch IC manufactured by onsemi in 16-SOIC surface mount packaging. This interface component operates across a 4V to 5.5V single supply voltage range with 10Ohm maximum on-state resistance and 300MHz -3dB bandwidth, designed for video multiplexing and demultiplexing applications. The part is currently obsolete, necessitating identification of active equivalent alternatives that maintain functional compatibility within the same package and electrical parameter envelope.

Key Parameters

Parameter	FSAV330MX
Manufacturer	onsemi
Category	Interface
Package / Case	16-SOIC (0.154", 3.90mm Width)
Multiplexer/Demultiplexer Circuit	2:1
Switch Circuit	SPDT
Number of Channels	4
On-State Resistance (Max)	10Ohm
Voltage - Supply, Single (V+)	4V ~ 5.5V
-3dB Bandwidth	300MHz
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
Product Status	Obsolete
Applications	Video

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict parameter matching across the following critical dimensions:

Package Compatibility: All substitute parts must use 16-SOIC (0.154", 3.90mm Width) surface mount packaging to ensure PCB footprint compatibility without redesign.

Functional Architecture: All candidates maintain 2:1 multiplexer/demultiplexer topology with SPDT switch circuit and 4-channel configuration, preserving signal routing capability.

Supply Voltage Range: Substitutes must operate within or encompass the 4V to 5.5V single supply range. Parts with lower voltage ranges (3V to 3.6V) are not direct substitutes for 5V applications but may serve in reduced-voltage designs. Parts with matching or wider voltage ranges enable direct replacement.

On-State Resistance: Maximum on-state resistance of 10Ohm or lower ensures signal integrity and impedance matching. Lower resistance values (6Ohm to 8Ohm) provide improved performance characteristics.

Bandwidth Performance: The 300MHz -3dB bandwidth specification defines the frequency response envelope. Substitutes with equal or higher bandwidth (300MHz to 500MHz) maintain or exceed performance; lower bandwidth values restrict frequency capability.

Operating Temperature Range: All candidates support -40°C to 85°C (TA), matching the original specification.

Product Status and Compliance: Active product status ensures ongoing availability and support. RoHS3 compliance and REACH unaffected status confirm regulatory alignment.

Parameter Comparison

Part Number	Manufacturer	Package	Channels	On-State Resistance (Max)	Supply Voltage (V+)	-3dB Bandwidth	Operating Temp	Product Status	Packaging Type
FSAV330MX	onsemi	16-SOIC	4	10Ohm	4V ~ 5.5V	300MHz	-40°C ~ 85°C	Obsolete	—
TS3V330D	Texas Instruments	16-SOIC	4	10Ohm	3V ~ 3.6V	300MHz	-40°C ~ 85°C	Active	Tube
TS3V330DR	Texas Instruments	16-SOIC	4	10Ohm	3V ~ 3.6V	300MHz	-40°C ~ 85°C	Active	Tape & Reel (TR)
TS3V340D	Texas Instruments	16-SOIC	4	6Ohm	3V ~ 3.6V	500MHz	-40°C ~ 85°C	Active	Tube
TS3V340DR	Texas Instruments	16-SOIC	4	6Ohm	3V ~ 3.6V	500MHz	-40°C ~ 85°C	Active	Tape & Reel (TR)
TS3L110D	Texas Instruments	16-SOIC	4	8Ohm	3V ~ 3.6V	500MHz	-40°C ~ 85°C	Active	Tube
TS3L110DR	Texas Instruments	16-SOIC	4	8Ohm	3V ~ 3.6V	500MHz	-40°C ~ 85°C	Active	Tape & Reel (TR)
TS5V330D	Texas Instruments	16-SOIC	4	10Ohm	4V ~ 5.5V	300MHz (Min)	-40°C ~ 85°C	Last Time Buy	Tube
TS5V330DR	Texas Instruments	16-SOIC	4	10Ohm	4V ~ 5.5V	300MHz (Min)	-40°C ~ 85°C	Last Time Buy	Cut Tape (CT)
TS5V330CDR	Texas Instruments	16-SOIC	4	10Ohm	4V ~ 5.5V	250MHz	-40°C ~ 85°C	Active	Tape & Reel (TR)

Engineering Selection Recommendations

Direct Voltage-Compatible Substitutes (4V to 5.5V Supply):

TS5V330CDR is the primary active substitute, maintaining identical supply voltage range (4V to 5.5V), on-state resistance (10Ohm), and operating temperature envelope. This part is currently in active production status with RoHS3 compliance and REACH unaffected certification. The 250MHz bandwidth is lower than the original 300MHz specification but remains suitable for standard video switching applications. Tape & Reel packaging supports high-volume production requirements.

TS5V330D and TS5V330DR provide functional equivalence with matching voltage and resistance parameters but carry Last Time Buy status, indicating discontinued production. These parts remain available in current inventory but should not be selected for new designs requiring long-term supply assurance.

Lower Voltage Alternatives (3V to 3.6V Supply):

TS3V330D and TS3V330DR maintain identical on-state resistance (10Ohm) and bandwidth (300MHz) but operate at reduced supply voltage (3V to 3.6V). These parts are suitable only for applications designed around 3.3V logic levels and cannot directly replace the FSAV330MX in 5V systems without additional voltage regulation circuitry.

TS3V340D and TS3V340DR offer improved performance with lower on-state resistance (6Ohm) and higher bandwidth (500MHz) but are constrained to 3V to 3.6V supply operation. Selection depends on application voltage architecture.

TS3L110D and TS3L110DR provide 8Ohm on-state resistance and 500MHz bandwidth at 3V to 3.6V supply, with networking-specific features (10/100 Base-T). These parts are suitable for Ethernet switching applications within the 3.3V voltage domain.

Compliance and Availability:

All substitute candidates are RoHS3 compliant and REACH unaffected. TS5V330CDR is the only active product with matching voltage specification. Tape & Reel (TR) and Tube packaging options support both automated assembly and manual component handling workflows.

Frequently Asked Questions (FAQ)

Q: Can TS5V330CDR directly replace FSAV330MX without PCB modifications?

A: Yes. Both parts use identical 16-SOIC (0.154", 3.90mm Width) packaging, 4-channel SPDT 2:1 multiplexer architecture, and 4V to 5.5V supply voltage range. PCB footprint and signal routing remain unchanged. The 250MHz bandwidth of TS5V330CDR is lower than the original 300MHz but operates within standard video switching frequency requirements.

Q: Why are TS3V330D and TS3V340D not suitable direct replacements?

A: These parts operate at 3V to 3.6V supply voltage, incompatible with 5V system designs. Direct substitution would cause device malfunction or damage. Use only in applications redesigned for 3.3V logic levels with appropriate voltage regulation.

Q: What is the difference between Tube and Tape & Reel packaging?

A: Tube packaging is suitable for manual component handling and small-volume assembly. Tape & Reel (TR) packaging is optimized for automated pick-and-place equipment in high-volume production. Both use identical 16-SOIC component geometry. Selection depends on assembly process requirements.

Q: Does lower on-state resistance (6Ohm vs. 10Ohm) improve performance?

A: Lower on-state resistance reduces signal attenuation and improves impedance matching in video switching circuits. TS3V340D and TS3V340DR offer 6Ohm resistance with 500MHz bandwidth, providing superior performance characteristics. However, these parts require 3V to 3.6V supply operation and are not voltage-compatible with 5V designs.

Q: What does "Last Time Buy" product status mean?

A: Last Time Buy indicates the manufacturer has discontinued production and set a final order deadline. TS5V330D and TS5V330DR carry this status. While current inventory exists, these parts should not be selected for new designs requiring sustained component availability beyond the discontinuation date.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are RoHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution.

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