SI3018-FT Equivalent & Substitute Parts

Part Overview

The SI3018-FT is a telecom interface IC implementing Direct Access Arrangement (DAA) functionality in a 16-TSSOP surface mount package. This component provides parallel, SPI, and UART interface capabilities for telecommunications applications. The SI3018-FT is classified as obsolete, making identification of active equivalent parts essential for ongoing system support and new design implementations.

Substiute Parts

SI3018-FT

Skyworks Solutions Inc.In Stock: 1077SI3018-FT Datasheet

Current PartRFQ

SI3018-F-FT

Skyworks Solutions Inc.In Stock: 3345SI3018-F-FT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SI3018-FT is determined by strict equivalence across the following electrical and mechanical parameters:

• Function: Direct Access Arrangement (DAA) implementation
• Interface protocols: Parallel, SPI, and UART support
• Voltage supply specification: 3V ~ 3.6V
• Supply current: 8.5mA
• Operating temperature range: 0°C ~ 70°C
• Package configuration: 16-TSSOP form factor
• Mounting technology: Surface mount

The SI3018-F-FT meets all substitution criteria as an active product variant of the same base product number (SI3018) manufactured by Skyworks Solutions Inc.

Parameter Comparison

Engineering Selection Recommendations

The SI3018-F-FT serves as the active equivalent for the obsolete SI3018-FT. Both components share identical electrical specifications, interface protocols, and physical packaging. The SI3018-F-FT is the recommended selection for new designs and replacement applications due to its active product status with Skyworks Solutions Inc.

The transition from SI3018-FT to SI3018-F-FT involves no changes to circuit design, PCB layout, or firmware integration. Both parts are classified under the same ECCN and HTSUS codes, confirming regulatory equivalence.

Frequently Asked Questions (FAQ)

Q: Can SI3018-F-FT directly replace SI3018-FT in existing designs?

A: Yes. The SI3018-F-FT is electrically and mechanically equivalent to the SI3018-FT across all specified parameters including voltage supply, current consumption, operating temperature, interface protocols, and 16-TSSOP package configuration. No circuit modifications are required.

Q: What is the difference between SI3018-FT and SI3018-F-FT?

A: The primary differences are product status and packaging format. SI3018-FT is obsolete, while SI3018-F-FT is active. SI3018-F-FT is supplied in tube packaging. Moisture sensitivity levels differ (MSL 1 versus MSL 3), reflecting different storage and handling requirements.

Q: Are there any pin configuration differences between these parts?

A: No. Both parts use the 16-TSSOP package with identical pin assignments and electrical characteristics.

Q: What is the supply availability difference?

A: SI3018-FT inventory is limited at 1031 pieces. SI3018-F-FT has higher availability at 3298 pieces as an active product.

Q: Do these parts require different PCB design considerations?

A: No. Both components use surface mount technology in the same 16-TSSOP form factor. PCB layout, trace routing, and component placement remain unchanged.