FUSB302UCX USB Type-C Controller Equivalent & Substitute Parts

Part Overview

The FUSB302UCX is a programmable USB Type-C controller manufactured by onsemi, designed for USB 3.1 interface applications. This device integrates USB protocol management in a compact 9-WLCSP package format. The FUSB302UCX carries a "Not For New Designs" product status, indicating it has been superseded in the manufacturer's product roadmap. Organizations requiring this functionality for new or replacement applications should evaluate available substitute components that maintain electrical and mechanical compatibility.

Substiute Parts

FUSB302UCX

onsemiIn Stock: 35315FUSB302UCX Datasheet

Current PartRFQ

FUSB302BUCX

onsemiIn Stock: 71466FUSB302BUCX Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FUSB302UCX is determined by the following critical parameters:

• Functional Equivalence: USB Type-C controller with USB 3.1 protocol support
• Electrical Specifications: Supply voltage range 2.8V ~ 5.5V; supply current 25µA
• Operating Environment: Temperature range -40°C ~ 85°C
• Package Compatibility: 9-UFBGA, WLCSP form factor with pin-compatible footprint
• Regulatory Compliance: ROHS3 compliance and REACH unaffected status

The FUSB302BUCX qualifies as a parametric equivalent based on matching all critical electrical and functional parameters. The primary distinction between these components is packaging format (Cut Tape vs. Tape & Reel) and product lifecycle status.

Parameter Comparison

Engineering Selection Recommendations

The FUSB302BUCX is the direct parametric equivalent to the FUSB302UCX. Both components share identical electrical specifications, functional capabilities, and regulatory compliance certifications. The FUSB302BUCX maintains Active product status, whereas the FUSB302UCX is designated Not For New Designs. For applications requiring long-term supply assurance and manufacturer support, the FUSB302BUCX is the appropriate selection. The distinction between Cut Tape and Tape & Reel packaging formats reflects only distribution method and does not affect component performance or compatibility in circuit applications.

Frequently Asked Questions (FAQ)

Q: Can FUSB302BUCX directly replace FUSB302UCX in existing designs?

A: Yes. Both components are electrically and functionally identical across all specified parameters. The 9-WLCSP package footprint is compatible between both variants. Packaging format differences (Cut Tape vs. Tape & Reel) do not affect circuit-level compatibility.

Q: What is the significance of the "Not For New Designs" status on FUSB302UCX?

A: This designation indicates the manufacturer has transitioned this component to end-of-life status and recommends using alternative parts for new product development. The FUSB302BUCX, with Active status, represents the current production equivalent.

Q: Are there dimensional differences between the 9-WLCSP packages?

A: The supplier device packages differ slightly: FUSB302UCX uses 9-WLCSP (1.22x1.22) while FUSB302BUCX uses 9-WLCSP (1.21x1.26). These minor dimensional variations remain within standard WLCSP tolerance specifications and do not affect PCB footprint compatibility or component placement.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both FUSB302UCX and FUSB302BUCX are ROHS3 compliant and REACH unaffected, meeting identical environmental and regulatory standards.

Q: Which part should be selected for high-volume production?

A: The FUSB302BUCX is recommended for production applications due to its Active product status and Tape & Reel packaging format, which is standard for automated assembly processes.