AFBR-725SMZ Equivalent & Substitute Parts

Part Overview

The AFBR-725SMZ is a Broadcom Limited SFP+ 25GE multimode transceiver module designed for Ethernet applications. This component operates at 25.78125 Gbps with an 850nm wavelength and features LC duplex connectivity in a pluggable SFP form factor. The part is classified as Obsolete, necessitating identification of equivalent alternatives for ongoing system requirements and new designs. Substitute parts must maintain electrical performance specifications, mechanical compatibility, and compliance certifications to ensure seamless integration into existing or planned deployments.

Substiute Parts

AFBR-725SMZ

Broadcom LimitedIn Stock: 1147AFBR-725SMZ Datasheet

Current PartRFQ

AFBR-735SMZ

Broadcom LimitedIn Stock: 1091AFBR-735SMZ Datasheet

MFR RecommendedRFQ

AFBR-725SMZ-C

ATGBICSIn Stock: 10032AFBR-725SMZ-C Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AFBR-725SMZ is determined by alignment across the following critical parameters:

Electrical Compatibility Requirements:

• Data rate must support 25.78125 Gbps or equivalent 25 Gbps operation
• Wavelength must be 850nm (multimode, short-range operation)
• Supply voltage must fall within or be compatible with the 3.1V ~ 3.5V range

Mechanical Compatibility Requirements:

• Connector type must be LC (duplex or single configuration acceptable for functional equivalence)
• Mounting type must be pluggable SFP or SFP28 form factor (backward compatible in most host equipment)

Compliance Requirements:

• RoHS3 compliance required for regulatory alignment
• ECCN and HTSUS classifications must align with export control and tariff regulations

Two substitute parts meet these criteria with varying degrees of direct equivalence based on form factor evolution and manufacturer designation.

Parameter Comparison

Engineering Selection Recommendations

AFBR-735SMZ (Broadcom Limited - MFR Recommended Substitute)

The AFBR-735SMZ is the manufacturer-recommended substitute for the obsolete AFBR-725SMZ. This part maintains identical electrical specifications (25.78125 Gbps data rate, 850nm wavelength, 3.1V ~ 3.5V supply voltage) and connector configuration (LC duplex). The primary difference is the evolution from SFP to SFP28 form factor, which represents a generational upgrade in the Broadcom AFBR series. SFP28 modules are backward compatible with most SFP+ host equipment through passive adapters or direct insertion in SFP28-capable slots. The part carries Last Time Buy status, indicating controlled availability for transition planning. ROHS3 compliance and matching ECCN/HTSUS classifications ensure regulatory continuity.

AFBR-725SMZ-C (ATGBICS - Similar Substitute)

The AFBR-725SMZ-C provides an alternative from ATGBICS with equivalent 25 Gbps performance at 850nm wavelength. This part operates at 3.3V, which falls within the acceptable supply voltage envelope of the original specification. The SFP28 form factor aligns with the generational transition represented by the AFBR-735SMZ. This part maintains Active product status, ensuring long-term availability. However, RoHS compliance status is not specified in the provided data, requiring verification against procurement requirements. The ECCN classification differs (EAR99 versus 5A991B1), which may affect export documentation and supply chain routing.

Selection Criteria:

For applications requiring manufacturer continuity and maximum compatibility assurance, the AFBR-735SMZ is the primary selection. For applications prioritizing long-term availability and active product status, the AFBR-725SMZ-C is suitable provided RoHS compliance verification is completed and export control classifications are acceptable for the intended market.

Frequently Asked Questions (FAQ)

Q: Can the AFBR-735SMZ directly replace the AFBR-725SMZ in existing equipment?

A: The AFBR-735SMZ maintains identical electrical specifications and connector type (LC duplex). The form factor change from SFP to SFP28 requires host equipment compatibility verification. Most modern equipment with SFP28 slots accepts both SFP and SFP28 modules. Legacy SFP-only equipment may require passive adapter modules or hardware redesign.

Q: What is the difference between SFP and SFP28 form factors?

A: SFP28 is a generational evolution of the SFP form factor with improved thermal management and higher density packaging. Both are pluggable transceiver modules with LC connectors. SFP28 modules are typically backward compatible with SFP+ host equipment through form factor adaptation, though electrical performance is determined by host port capability.

Q: Are the AFBR-735SMZ and AFBR-725SMZ-C interchangeable?

A: Both parts operate at 25 Gbps with 850nm wavelength and LC connectivity. The AFBR-735SMZ is the Broadcom manufacturer-recommended substitute with identical 25.78125 Gbps specification. The AFBR-725SMZ-C operates at 25 Gbps (not 25.78125 Gbps) and is sourced from ATGBICS. Interchangeability depends on host equipment tolerance for data rate variation and manufacturer certification requirements.

Q: What does "Last Time Buy" status mean for the AFBR-735SMZ?

A: Last Time Buy indicates that Broadcom has announced end-of-life for this part. Existing inventory is available for purchase, but production will cease. This status provides a defined window for procurement before transition to newer alternatives becomes necessary. The AFBR-725SMZ-C with Active status offers extended availability for long-term applications.

Q: Does supply voltage compatibility affect substitution?

A: The AFBR-725SMZ operates at 3.1V ~ 3.5V. The AFBR-735SMZ matches this range exactly. The AFBR-725SMZ-C operates at 3.3V, which falls within the acceptable range. Host equipment power supply specifications must accommodate the selected part's voltage requirements. Verify host equipment power delivery specifications before final selection.

Q: Are there packaging differences between the substitute parts?

A: The AFBR-725SMZ packaging is not specified in the provided data. Both AFBR-735SMZ and AFBR-725SMZ-C are supplied in Tray packaging. Packaging format affects handling, storage, and integration into automated assembly processes. Confirm packaging compatibility with receiving and assembly procedures.

Q: What compliance certifications are critical for substitution?

A: RoHS3 compliance is specified for both the AFBR-725SMZ and AFBR-735SMZ, ensuring regulatory alignment for restricted substance requirements. The AFBR-725SMZ-C does not specify RoHS status in the provided data. ECCN and HTSUS classifications differ between manufacturers, affecting export control and tariff treatment. Verify compliance requirements for your specific market and application before final selection.