FSAV330QSC Equivalent & Substitute Parts

Part Overview

The FSAV330QSC is a quad 2:1 video switch IC manufactured by onsemi in a 16-QSOP package. This interface component is designed for video multiplexing and demultiplexing applications with 4 channels and SPDT switching capability. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. Substitute parts must maintain functional compatibility across key electrical parameters including on-state resistance, bandwidth, supply voltage range, and channel configuration.

Key Parameters

Parameter	FSAV330QSC Value
Multiplexer/Demultiplexer Circuit	2:1
Switch Circuit	SPDT
Number of Channels	4
On-State Resistance (Max)	10 Ohm
Voltage - Supply, Single (V+)	4V ~ 5.5V
-3dB Bandwidth	300 MHz
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
Package / Case	16-LSSOP (0.154", 3.90mm Width)

Substitute Part Grouping Explanation

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

Primary Compatibility Requirements:

Multiplexer/Demultiplexer Circuit: 2:1 configuration
Number of Channels: 4 channels
On-State Resistance (Max): 10 Ohm maximum
Operating Temperature Range: -40°C ~ 85°C (TA)
Supply Voltage Compatibility: Parts must operate within or encompass the 4V ~ 5.5V range

Secondary Compatibility Factors:

-3dB Bandwidth: Minimum 300 MHz
Switch Circuit: SPDT preferred for direct functional equivalence
Package Type: Surface mount with compatible footprint dimensions

Parts are grouped into two categories based on supply voltage alignment:

Group A - Direct Voltage Range Match (4V ~ 5.5V): TS5V330DBQR, TS5V330CPWR, PI5V330QE, PI5V330QEX, PI5V330AQEX

Group B - Lower Voltage Range (3V ~ 3.6V): TS3V330DBQR, TS3V340DBQR, TS3V340PW, TS3V340PWR

Parameter Comparison

Part Number	Manufacturer	Multiplexer Circuit	Channels	On-State Resistance (Max)	Supply Voltage (V+)	-3dB Bandwidth	Package / Case	Product Status
FSAV330QSC	onsemi	2:1	4	10 Ohm	4V ~ 5.5V	300 MHz	16-LSSOP (3.90mm)	Obsolete
PI5V330AQEX	Diodes Incorporated	2:1	4	10 Ohm	5V	400 MHz	16-SSOP (3.90mm)	Last Time Buy
PI5V330QE	Diodes Incorporated	2:1	4	10 Ohm	5V	400 MHz	16-SSOP (3.90mm)	Last Time Buy
PI5V330QEX	Diodes Incorporated	2:1	4	10 Ohm	5V	400 MHz	16-SSOP (3.90mm)	Last Time Buy
TS3V330DBQR	Texas Instruments	2:1	4	10 Ohm	3V ~ 3.6V	300 MHz	16-SSOP (3.90mm)	Active
TS3V340DBQR	Texas Instruments	2:1	4	6 Ohm	3V ~ 3.6V	500 MHz	16-SSOP (3.90mm)	Active
TS3V340PW	Texas Instruments	2:1	4	6 Ohm	3V ~ 3.6V	500 MHz	16-TSSOP (4.40mm)	Active
TS3V340PWR	Texas Instruments	2:1	4	6 Ohm	3V ~ 3.6V	500 MHz	16-TSSOP (4.40mm)	Active
TS5V330CPWR	Texas Instruments	2:1	4	10 Ohm	4V ~ 5.5V	250 MHz	16-TSSOP (4.40mm)	Active
TS5V330DBQR	Texas Instruments	2:1	4	10 Ohm	4V ~ 5.5V	300 MHz	16-SSOP (3.90mm)	Last Time Buy

Engineering Selection Recommendations

For Direct Replacement (Voltage Range 4V ~ 5.5V):

TS5V330DBQR is the primary substitute. It maintains identical on-state resistance (10 Ohm), matching bandwidth (300 MHz minimum), and supply voltage range (4V ~ 5.5V). The part is manufactured by Texas Instruments with active product status and ROHS3 compliance. Package footprint is compatible (16-SSOP, 3.90mm width). Moisture sensitivity level is 2 (1 Year), compared to the original part's MSL 1.

TS5V330CPWR provides equivalent electrical performance with active status and ROHS3 compliance. The 16-TSSOP package (4.40mm width) requires PCB layout modification. Bandwidth is reduced to 250 MHz, which remains within acceptable margins for the original 300 MHz specification.

For Applications Requiring Lower Supply Voltage (3V ~ 3.6V):

TS3V330DBQR maintains the original 10 Ohm on-state resistance and 300 MHz bandwidth with active product status. The 16-SSOP package is footprint-compatible. This part is suitable only for systems operating at 3V ~ 3.6V supply.

TS3V340DBQR and TS3V340PWR offer improved performance with 6 Ohm on-state resistance and 500 MHz bandwidth. These parts are active and ROHS3 compliant. TS3V340PWR uses a 16-TSSOP package requiring layout modification. Both are limited to 3V ~ 3.6V operation.

For 5V Single Supply Systems:

PI5V330QE, PI5V330QEX, and PI5V330AQEX are manufactured by Diodes Incorporated with 5V single supply operation. All maintain 10 Ohm on-state resistance and 4-channel configuration. Bandwidth is enhanced to 400 MHz. These parts carry Last Time Buy status. PI5V330QEX and PI5V330AQEX are available in Tape & Reel packaging; PI5V330QE is supplied in Tube packaging.

Frequently Asked Questions (FAQ)

Q: Can TS5V330DBQR directly replace FSAV330QSC without PCB modification?

A: Yes. TS5V330DBQR uses the same 16-SSOP package with 3.90mm width, matching the original FSAV330QSC footprint. Electrical parameters are compatible: 4V ~ 5.5V supply, 10 Ohm on-state resistance, and 300 MHz bandwidth. No layout changes are required.

Q: What is the difference between PI5V330QE, PI5V330QEX, and PI5V330AQEX?

A: All three parts are functionally equivalent with identical electrical specifications (2:1 multiplexer, 4 channels, 10 Ohm resistance, 5V supply, 400 MHz bandwidth). The differences are packaging format: PI5V330QE is supplied in Tube; PI5V330QEX and PI5V330AQEX are supplied in Tape & Reel. Selection depends on assembly process requirements.

Q: Why do TS3V340 parts have lower on-state resistance (6 Ohm vs 10 Ohm)?

A: TS3V340DBQR, TS3V340PW, and TS3V340PWR are enhanced versions with improved switching characteristics. The 6 Ohm on-state resistance is a design improvement, not a limitation. These parts are suitable for FSAV330QSC replacement only in applications where 3V ~ 3.6V supply voltage is acceptable.

Q: Can I use a 3V ~ 3.6V part in a 4V ~ 5.5V system?

A: No. TS3V330DBQR and TS3V340 series parts are specified for 3V ~ 3.6V operation only. Operating them outside this range violates manufacturer specifications and may cause functional failure or damage.

Q: What is the impact of using TS5V330CPWR instead of TS5V330DBQR?

A: TS5V330CPWR has identical electrical performance (10 Ohm resistance, 4V ~ 5.5V supply) but uses a 16-TSSOP package (4.40mm width) instead of 16-SSOP (3.90mm width). PCB layout modification is required. Bandwidth is reduced to 250 MHz, which remains acceptable for the original 300 MHz specification. This part is suitable only if PCB redesign is feasible.

Q: Are all substitute parts ROHS3 compliant?

A: All substitute parts listed carry ROHS3 compliance certification. The original FSAV330QSC does not specify RoHS status. All substitute parts are REACH Unaffected with EAR99 ECCN classification, matching the original part's regulatory profile.

Q: What is the significance of "Last Time Buy" product status?

A: Parts marked as Last Time Buy (PI5V330 series and TS5V330DBQR) have limited remaining inventory and will not be replenished after current stock is exhausted. For long-term production, prioritize parts with Active status: TS3V330DBQR, TS3V340 series, and TS5V330CPWR.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message