AFCT-739SMZ Equivalent & Substitute Parts

Part Overview

The AFCT-739SMZ is a transceiver module manufactured by Broadcom Limited, designed for Ethernet applications operating at 10GBd with 1310nm wavelength transmission. This SFP+ pluggable module features LC duplex connectors and operates at 3.3V supply voltage. The product is currently classified as obsolete, making identification of functionally equivalent alternatives essential for system maintenance, upgrades, and procurement planning.

Substiute Parts

AFCT-739SMZ

Broadcom LimitedIn Stock: 2297AFCT-739SMZ Datasheet

Current PartRFQ

AFCT-725SMZ

Broadcom LimitedIn Stock: 1046AFCT-725SMZ Datasheet

SimilarRFQ

AFCT-739SMZ-C

ATGBICSIn Stock: 10515AFCT-739SMZ-C Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AFCT-739SMZ are identified based on the following critical parameters that determine functional compatibility:

• Data Rate: 10GBd (primary performance specification)
• Wavelength: 1310nm (optical transmission characteristic)
• Voltage Supply: 3.3V (electrical compatibility)
• Connector Type: LC (physical interface standard)
• Mounting Type: SFP+ (form factor and slot compatibility)
• RoHS Compliance: ROHS3 (regulatory requirement)

Two substitute parts meet these criteria with varying degrees of parameter alignment and product status considerations.

Parameter Comparison

Engineering Selection Recommendations

AFCT-739SMZ-C is the primary substitute for the AFCT-739SMZ. Both modules operate at identical data rates (10Gbps/10GBd), wavelength (1310nm), supply voltage (3.3V), and utilize SFP+ form factor with LC connectors. The AFCT-739SMZ-C is manufactured by ATGBICS and maintains active product status, ensuring continued availability and support. Both modules are ROHS3 compliant. This substitute provides direct functional equivalence for Ethernet applications requiring 10Gbps performance at 1310nm wavelength.

AFCT-725SMZ is a secondary alternative suitable only when system architecture supports higher data rates. This module operates at 25Gbps, exceeding the original specification of 10GBd. The AFCT-725SMZ uses SFP28 form factor rather than SFP+, requiring compatible slot availability. While wavelength (1310nm), supply voltage (3.3V), and RoHS compliance match the original part, the increased data rate and different form factor necessitate system-level compatibility verification. This module is classified as Last Time Buy, indicating limited future availability.

Frequently Asked Questions (FAQ)

Q: Can AFCT-739SMZ-C be used as a direct replacement for AFCT-739SMZ?

A: Yes. Both modules share identical electrical specifications (10Gbps data rate, 1310nm wavelength, 3.3V supply), physical connectors (LC), and form factor (SFP+). The AFCT-739SMZ-C is manufactured by ATGBICS and maintains active product status, making it suitable for direct substitution in Ethernet applications.

Q: What is the key difference between AFCT-739SMZ and AFCT-725SMZ?

A: The primary difference is data rate and form factor. AFCT-739SMZ operates at 10GBd using SFP+ form factor, while AFCT-725SMZ operates at 25Gbps using SFP28 form factor. Both share 1310nm wavelength and 3.3V supply voltage. AFCT-725SMZ requires SFP28-compatible slots and is suitable only when higher bandwidth is required and supported by system architecture.

Q: Why is AFCT-739SMZ classified as obsolete?

A: Obsolete status indicates the product is no longer manufactured or supported by Broadcom Limited. This classification necessitates identifying active or last-time-buy alternatives for continued system support and component procurement.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. Both AFCT-739SMZ-C and AFCT-725SMZ maintain ROHS3 compliance, matching the regulatory requirement of the original AFCT-739SMZ.

Q: Can AFCT-725SMZ be used in an SFP+ slot?

A: No. AFCT-725SMZ uses SFP28 form factor and is not compatible with SFP+ slots. System slots must support SFP28 form factor for this module to function.