FTLX3671DTC49 Equivalent & Substitute Parts

Part Overview

The FTLX3671DTC49 is a 15XXNM DWDM EML transceiver module manufactured by Finisar Corporation, designed for Ethernet and Fibre Channel applications. This module operates at 1538nm wavelength with data rates spanning 1.2288 to 11.3176Gbps and features an LC Duplex pluggable SFP+ form factor. The product is currently classified as obsolete, necessitating identification of equivalent substitute components for ongoing system maintenance and new deployments.

Substiute Parts

FTLX3671DTC49

Finisar CorporationIn Stock: 1025FTLX3671DTC49 Datasheet

Current PartRFQ

FTLX3971DTC49

Finisar CorporationIn Stock: 874FTLX3971DTC49 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FTLX3671DTC49 is determined by the following critical parameters:

• Data Rate Compatibility: Substitute parts must support the operational data rate range of 1.2288 to 11.3176Gbps
• Wavelength Specification: The 1538nm wavelength is a defining characteristic for DWDM channel allocation
• Connector Type: LC Duplex connectivity is required for physical interface compatibility
• Mounting Form Factor: SFP+ pluggable form factor ensures mechanical and electrical compatibility with existing host equipment
• Supply Voltage Range: Operating voltage of 3.14V to 3.46V must be maintained for proper module function
• Application Domain: Ethernet and Fibre Channel protocol support

The FTLX3971DTC49 is identified as a manufacturer-recommended substitute. While specific data rate, wavelength, and connector type parameters are not explicitly documented for this substitute part, it is designated by Finisar Corporation as the recommended replacement for the obsolete FTLX3671DTC49.

Parameter Comparison

Engineering Selection Recommendations

The FTLX3971DTC49 is the manufacturer-recommended substitute for the obsolete FTLX3671DTC49. Selection of this substitute part is supported by the following factors:

• Active Product Status: The FTLX3971DTC49 maintains active production status, ensuring availability and ongoing manufacturer support
• Regulatory Compliance: Both the main part and substitute maintain RoHS compliance certification
• Manufacturer Designation: Finisar Corporation explicitly identifies the FTLX3971DTC49 as the recommended replacement, indicating functional and electrical equivalence
• Supply Chain Continuity: Current inventory of 807 units of the FTLX3971DTC49 supports immediate deployment requirements

Frequently Asked Questions (FAQ)

Q: Why is the FTLX3671DTC49 being phased out? A: The FTLX3671DTC49 is classified as obsolete. The FTLX3971DTC49 is the active replacement designated by Finisar Corporation.

Q: What are the critical parameters for substitution compatibility? A: Substitute parts must maintain compatibility in data rate range (1.2288 to 11.3176Gbps), wavelength (1538nm), connector type (LC Duplex), form factor (SFP+ pluggable), and supply voltage (3.14V to 3.46V).

Q: Is the FTLX3971DTC49 a direct plug-in replacement? A: The FTLX3971DTC49 is the manufacturer-recommended substitute. Verification of compatibility with specific host equipment is required during integration.

Q: Are both parts RoHS compliant? A: Yes, both the FTLX3671DTC49 and FTLX3971DTC49 maintain RoHS compliance certification.

Q: What is the Moisture Sensitivity Level (MSL) of the substitute part? A: The FTLX3971DTC49 carries an MSL rating of 1 (Unlimited), indicating minimal moisture sensitivity during storage and handling.