FST3306MTCX Equivalent & Substitute Parts

Part Overview

The FST3306MTCX is a bus switch logic IC manufactured by onsemi, configured as a 1 x 1:1 circuit in an 8-TSSOP surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The FST3306MTCX operates within a single supply voltage range of 4V to 5.5V and maintains an operating temperature range of -40°C to 85°C, suitable for standard industrial and commercial applications.

Substiute Parts

FST3306MTCX

onsemiIn Stock: 17565FST3306MTCX Datasheet

Current PartRFQ

SN74CBT3306PW

Texas InstrumentsIn Stock: 4078SN74CBT3306PW Datasheet

DirectRFQ

SN74CBT3306PWR

Texas InstrumentsIn Stock: 2366SN74CBT3306PWR Datasheet

DirectRFQ

SN74CBT3306PWRG4

Texas InstrumentsIn Stock: 6568SN74CBT3306PWRG4 Datasheet

DirectRFQ

CBT3306PW,118

Nexperia USA Inc.In Stock: 3807CBT3306PW,118 Datasheet

SimilarRFQ

CBTD3306PW,118

Nexperia USA Inc.In Stock: 860CBTD3306PW,118 Datasheet

SimilarRFQ

PI5C3306LEX

Diodes IncorporatedIn Stock: 17510PI5C3306LEX Datasheet

SimilarRFQ

SN74CBT3306CPW

Texas InstrumentsIn Stock: 1454SN74CBT3306CPW Datasheet

SimilarRFQ

SN74CBT3306CPWR

Texas InstrumentsIn Stock: 9443SN74CBT3306CPWR Datasheet

SimilarRFQ

SN74CBTD3306CPW

Texas InstrumentsIn Stock: 2072SN74CBTD3306CPW Datasheet

SimilarRFQ

SN74CBTD3306CPWRG4

Texas InstrumentsIn Stock: 2745SN74CBTD3306CPWRG4 Datasheet

SimilarRFQ

PI5C3305LEX

Diodes IncorporatedIn Stock: 7453PI5C3305LEX Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the FST3306MTCX are qualified based on the following criteria:

Electrical Compatibility:

• Bus switch type with 1 x 1:1 circuit configuration
• 2 independent circuits
• Single supply voltage operation
• Voltage supply range: 4.5V ~ 5.5V (note: substitute parts specify 4.5V minimum versus 4V for the original)
• Operating temperature range: -40°C ~ 85°C

Mechanical Compatibility:

• 8-TSSOP surface mount package
• Package dimensions: 0.173" width, 4.40mm width
• Supplier device package: 8-TSSOP

Regulatory & Compliance:

• REACH Unaffected status
• ECCN: EAR99
• HTSUS: 8542.39.0001

Substitute parts are categorized as direct equivalents (same base functionality, different packaging or manufacturer) or similar alternatives (same electrical and mechanical specifications with active or available product status).

Parameter Comparison

Engineering Selection Recommendations

For Active Product Status Priority: Select from parts with Active product status to ensure long-term availability and manufacturing support. CBT3306PW,118 (Nexperia), CBTD3306PW,118 (Nexperia), PI5C3306LEX (Diodes Incorporated), SN74CBT3306CPW (Texas Instruments), SN74CBT3306CPWR (Texas Instruments), and SN74CBTD3306CPW (Texas Instruments) all maintain active status.

For RoHS3 Compliance: All substitute parts listed are ROHS3 Compliant, meeting current environmental and regulatory requirements. The original FST3306MTCX does not specify RoHS status, making compliant substitutes preferable for new designs.

For Voltage Supply Consideration: Substitute parts specify a minimum supply voltage of 4.5V, compared to the FST3306MTCX minimum of 4V. Designs operating below 4.5V require confirmation of compatibility or selection of alternative parts.

For Packaging and Availability: PI5C3306LEX offers the highest inventory (17,450 pcs) among active parts. SN74CBT3306CPWR provides 9,419 pcs in Tape & Reel packaging, suitable for high-volume production. CBT3306PW,118 and CBTD3306PW,118 from Nexperia are available in Tape & Reel format with active status.

Frequently Asked Questions (FAQ)

Q: Can I directly replace FST3306MTCX with any of the listed substitute parts?

A: Yes, all listed parts meet the electrical and mechanical compatibility criteria: 1 x 1:1 bus switch configuration, 2 independent circuits, single supply operation, 4.5V ~ 5.5V supply range, -40°C ~ 85°C operating temperature, and 8-TSSOP package. However, verify that your design does not require operation below 4.5V, as the original part specifies 4V minimum.

Q: What is the difference between the Texas Instruments 74CBT and 74CBTD series?

A: Both series maintain identical electrical specifications and package configurations for the 3306 variant. The 74CBTD series represents a different product line within Texas Instruments' bus switch portfolio. Selection between them depends on design requirements and availability.

Q: Why do substitute parts specify 4.5V minimum instead of 4V?

A: This reflects the electrical specifications published by each manufacturer. Designs requiring operation at 4V to 4.5V must confirm compatibility with the specific substitute part datasheet or consider alternative solutions.

Q: Which substitute part offers the best long-term availability?

A: Parts with Active product status provide the best long-term support. PI5C3306LEX (Diodes Incorporated), CBT3306PW,118 (Nexperia), CBTD3306PW,118 (Nexperia), and the Texas Instruments active variants (SN74CBT3306CPW, SN74CBT3306CPWR, SN74CBTD3306CPW) are all actively manufactured.

Q: Are all substitute parts ROHS3 Compliant?

A: Yes, all listed substitute parts are ROHS3 Compliant. The original FST3306MTCX does not specify RoHS status, making compliant substitutes the preferred choice for new designs and applications subject to environmental regulations.

Q: What packaging options are available for substitute parts?

A: Substitute parts are available in Tube, Tape & Reel (TR), and Cut Tape (CT) & Digi-Reel® formats. Selection depends on production volume and assembly requirements. Tape & Reel packaging is standard for high-volume manufacturing.