PI5C3383Q Bus FET Exchange Switch Equivalent & Substitute Parts

Part Overview

The PI5C3383Q is a Bus FET Exchange Switch logic IC manufactured by Diodes Incorporated, designed for 5 x 2:2 switching applications in 24-QSOP packaging. This component operates on single supply voltage (4.75V ~ 5.25V) and supports operating temperatures from -40°C to 85°C. The part is currently obsolete, making equivalent substitutes necessary for ongoing design support and production continuity. Active alternatives from Texas Instruments and Renesas Electronics Corporation provide direct functional replacement while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Manufacturer Part Number	PI5C3383Q
Manufacturer	Diodes Incorporated
Type	Bus FET Exchange Switch
Circuit Configuration	5 x 2:2
Voltage Supply Range	4.75V ~ 5.25V
Operating Temperature Range	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	24-SSOP (0.154", 3.90mm Width)
Supplier Device Package	24-QSOP
Product Status	Obsolete
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the PI5C3383Q is determined by the following critical parameters:

Circuit Configuration: 5 x 2:2 switching topology (mandatory match)
Voltage Supply Range: 4.75V ~ 5.25V or compatible range (4.5V ~ 5.5V acceptable with margin)
Operating Temperature Range: -40°C ~ 85°C (mandatory match)
Mounting Type: Surface Mount (mandatory match)
Package Type: 24-pin SSOP, QSOP, or TSSOP variants (pin-compatible packages)
Independent Circuits: 1 (mandatory match)

All substitute parts listed maintain the same functional circuit topology and electrical operating parameters. Package variants (QSOP, SSOP, TSSOP) are mechanically compatible within the 24-pin surface mount family. Voltage supply ranges of 4.5V ~ 5.5V provide backward compatibility with the original 4.75V ~ 5.25V specification.

Parameter Comparison

Part Number	Manufacturer	Circuit	Voltage Supply	Operating Temp	Package Type	Product Status	RoHS Status	MSL
PI5C3383Q	Diodes Incorporated	5 x 2:2	4.75V ~ 5.25V	-40°C ~ 85°C	24-QSOP	Obsolete	RoHS non-compliant	1
QS3383QG8	Renesas Electronics	5 x 2:2	4.75V ~ 5.25V	-40°C ~ 85°C	24-QSOP	Active	ROHS3 Compliant	1
QS3383QG	Renesas Electronics	5 x 2:2	4.75V ~ 5.25V	-40°C ~ 85°C	24-QSOP	Active	ROHS3 Compliant	1
SN74CBT3383CDBQR	Texas Instruments	5 x 2:2	4.5V ~ 5.5V	-40°C ~ 85°C	24-SSOP	Active	ROHS3 Compliant	2
SN74CBT3383CPWR	Texas Instruments	5 x 2:2	4.5V ~ 5.5V	-40°C ~ 85°C	24-TSSOP	Active	ROHS3 Compliant	1
SN74CBT3383DBQR	Texas Instruments	5 x 2:2	4.5V ~ 5.5V	-40°C ~ 85°C	24-SSOP	Active	ROHS3 Compliant	2
SN74CBT3383DBR	Texas Instruments	5 x 2:2	4.5V ~ 5.5V	-40°C ~ 85°C	24-SSOP	Last Time Buy	ROHS3 Compliant	1
SN74CBT3383DGVR	Texas Instruments	5 x 2:2	4.5V ~ 5.5V	-40°C ~ 85°C	24-TVSOP	Discontinued at DiGi Electronics	ROHS3 Compliant	1
SN74CBT3383PW	Texas Instruments	5 x 2:2	4.5V ~ 5.5V	-40°C ~ 85°C	24-TSSOP	Last Time Buy	ROHS3 Compliant	1
SN74CBT3383PWR	Texas Instruments	5 x 2:2	4.5V ~ 5.5V	-40°C ~ 85°C	24-TSSOP	Last Time Buy	ROHS3 Compliant	1

Engineering Selection Recommendations

Primary Recommendation: QS3383QG8 or QS3383QG (Renesas Electronics)

These parts provide the most direct substitution for PI5C3383Q. Both maintain identical voltage supply range (4.75V ~ 5.25V), operating temperature range (-40°C ~ 85°C), and 24-QSOP packaging. Both are ROHS3 compliant with MSL 1 rating and active product status, ensuring long-term availability and supply chain stability.

Secondary Recommendation: SN74CBT3383CPWR (Texas Instruments)

This part offers active product status with ROHS3 compliance and MSL 1 rating. The voltage supply range extends to 4.5V ~ 5.5V, providing additional operating margin. The 24-TSSOP package is pin-compatible with the original 24-QSOP. This option is suitable for new designs requiring extended voltage tolerance.

Alternative Options: SN74CBT3383CDBQR, SN74CBT3383DBQR (Texas Instruments)

Both parts maintain active status with ROHS3 compliance and 24-SSOP packaging. SN74CBT3383CDBQR is preferred due to MSL 1 rating. These options are suitable when 24-SSOP package compatibility is required.

Not Recommended for New Designs:

SN74CBT3383DBR, SN74CBT3383PW, SN74CBT3383PWR: Last Time Buy status indicates limited future availability
SN74CBT3383DGVR: Discontinued at DiGi Electronics; avoid for production designs

Frequently Asked Questions (FAQ)

Q: Can I use QS3383QG8 as a direct replacement for PI5C3383Q?

A: Yes. Both parts share identical circuit configuration (5 x 2:2), voltage supply range (4.75V ~ 5.25V), operating temperature range (-40°C ~ 85°C), and 24-QSOP packaging. QS3383QG8 is active and ROHS3 compliant, making it the preferred substitute.

Q: What is the difference between QS3383QG8 and QS3383QG?

A: Both are functionally equivalent Renesas parts with identical electrical specifications and packaging. The primary difference is packaging format: QS3383QG8 is supplied in standard packaging, while QS3383QG is supplied in Tube packaging. Selection depends on your procurement and handling requirements.

Q: Can I use Texas Instruments SN74CBT3383 series parts instead of the Renesas QS3383 series?

A: Yes, with package consideration. All SN74CBT3383 variants maintain the 5 x 2:2 circuit configuration and -40°C to 85°C operating range. The voltage supply range extends to 4.5V ~ 5.5V, which is compatible with the original 4.75V ~ 5.25V specification. Package variants differ: CPWR and PW use 24-TSSOP, while CDBQR and DBQR use 24-SSOP. Verify PCB layout compatibility with your selected package.

Q: Why do some substitute parts have a wider voltage supply range (4.5V ~ 5.5V)?

A: The Texas Instruments SN74CBT3383 series specifies 4.5V ~ 5.5V, which encompasses the original PI5C3383Q range of 4.75V ~ 5.25V. This wider specification provides additional design margin and is fully compatible with circuits designed for the original part.

Q: What does "Last Time Buy" status mean for SN74CBT3383DBR, SN74CBT3383PW, and SN74CBT3383PWR?

A: Last Time Buy indicates the manufacturer has announced end-of-life for these parts. While currently available, future supply is limited. These parts are suitable only for legacy system support or existing inventory replenishment, not for new product designs.

Q: Are all substitute parts ROHS3 compliant?

A: All active substitute parts listed (QS3383QG8, QS3383QG, and all SN74CBT3383 variants) are ROHS3 compliant. The original PI5C3383Q is RoHS non-compliant. If RoHS compliance is required for your application, use any of the listed active substitutes.

Q: What is the Moisture Sensitivity Level (MSL) difference, and does it matter?

A: MSL 1 (Unlimited) indicates no moisture sensitivity restrictions; MSL 2 (1 Year) requires storage in controlled humidity conditions. For most applications, MSL 1 parts (QS3383QG8, QS3383QG, SN74CBT3383CPWR, SN74CBT3383DBR, SN74CBT3383DGVR, SN74CBT3383PW, SN74CBT3383PWR) are preferred due to simpler handling requirements. MSL 2 parts (SN74CBT3383CDBQR, SN74CBT3383DBQR) require humidity-controlled storage and handling.

Q: Can I mix different substitute parts in the same design?

A: All listed substitutes are electrically equivalent and can be used interchangeably within the same circuit. However, mixing different package types (QSOP, SSOP, TSSOP) requires separate PCB layouts or footprints. For production consistency, standardize on a single part number.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message