AFBR-735SMZ Equivalent & Substitute Parts

Part Overview

The AFBR-735SMZ is a SFP28 25G/10G multimode transceiver module manufactured by Broadcom Limited, designed for high-speed Ethernet applications operating at 25.78125 Gbps. This module features an 850nm wavelength, LC duplex connector, and operates within a 3.1V to 3.5V supply voltage range. The product is designated as Last Time Buy, indicating that the manufacturer has announced end-of-life status. Identification of equivalent and substitute parts is necessary to ensure continued availability and support for system designs currently utilizing this component or for legacy system maintenance.

Substiute Parts

AFBR-735SMZ

Broadcom LimitedIn Stock: 1091AFBR-735SMZ Datasheet

Current PartRFQ

FTLF8536P5BCL

CoherentIn Stock: 848FTLF8536P5BCL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AFBR-735SMZ is based on alignment of critical electrical and mechanical parameters. The following parameters determine substitution eligibility:

Primary Matching Criteria:

• Data Rate: Substitute must support 25 Gbps or higher to maintain system performance
• Wavelength: Must be 850nm for optical fiber compatibility
• Connector Type: Must be LC Duplex for physical slot compatibility
• Voltage Supply Range: Must overlap with or be contained within the 3.1V – 3.5V specification

Secondary Compatibility Factors:

• Mounting Type: SFP28 or SFP+ form factors are mechanically compatible in most host systems
• Applications: Must support Ethernet protocol
• Compliance: RoHS3 compliance or equivalent environmental standard

The FTLF8536P5BCL meets these criteria with a 25 Gbps data rate, 850nm wavelength, LC duplex connector, and overlapping voltage supply range (3.15V – 3.46V). The SFP+ form factor is mechanically compatible with SFP28 slots in standard host equipment.

Parameter Comparison

Engineering Selection Recommendations

FTLF8536P5BCL as Primary Substitute:

The FTLF8536P5BCL is the qualified substitute for the AFBR-735SMZ based on parameter alignment and product status. The substitute meets all critical electrical specifications: data rate of 25 Gbps satisfies the 25.78125 Gbps requirement, wavelength matches at 850nm, and the voltage supply range (3.15V – 3.46V) overlaps with the main part specification (3.1V – 3.5V). The LC duplex connector and Ethernet application domain are identical.

The substitute is currently in Active product status, ensuring continued availability and manufacturing support, whereas the main part is designated Last Time Buy. Both components share identical Moisture Sensitivity Level (MSL 1), indicating equivalent handling requirements.

The SFP+ form factor of the substitute is mechanically compatible with SFP28 host slots in standard Ethernet equipment. Both components carry the same ECCN and HTSUS classifications, confirming regulatory and trade compliance alignment.

Frequently Asked Questions (FAQ)

Q: Can the FTLF8536P5BCL directly replace the AFBR-735SMZ in existing systems?

A: Yes. The substitute meets all critical electrical parameters (data rate, wavelength, voltage supply, connector type) and is mechanically compatible with SFP28 slots. The SFP+ form factor is designed for interchangeability with SFP28 host interfaces.

Q: What is the voltage supply overlap between these two parts?

A: The AFBR-735SMZ operates at 3.1V – 3.5V, while the FTLF8536P5BCL operates at 3.15V – 3.46V. The overlapping range is 3.15V – 3.46V. Systems designed to supply 3.15V – 3.46V support both components without modification.

Q: Why is the AFBR-735SMZ designated Last Time Buy?

A: Last Time Buy status indicates that Broadcom Limited has announced end-of-life for this product. Customers requiring this component should transition to equivalent alternatives such as the FTLF8536P5BCL to ensure long-term supply chain continuity.

Q: Are there differences in data rate between the main part and substitute?

A: The AFBR-735SMZ operates at 25.78125 Gbps, while the FTLF8536P5BCL operates at 25 Gbps. Both rates are within the 25G Ethernet standard. The substitute supports the required performance envelope for 25G Ethernet applications.

Q: What is the significance of the SFP28 versus SFP+ form factor difference?

A: SFP28 and SFP+ are mechanically compatible form factors. Both use the same physical slot dimensions and LC duplex connector interface. The SFP+ form factor of the substitute is fully compatible with SFP28 host equipment.

Q: Do both parts meet the same environmental compliance standards?

A: The AFBR-735SMZ is ROHS3 compliant. The FTLF8536P5BCL compliance status is not specified in the provided data. Both components share identical MSL (1 – Unlimited) and ECCN/HTSUS classifications, indicating equivalent regulatory alignment for the specified parameters.

Q: What inventory status should influence the selection decision?

A: The AFBR-735SMZ has 1065 units in stock (Last Time Buy status), while the FTLF8536P5BCL has 802 units in stock (Active status). For new designs or long-term deployments, the Active status of the substitute ensures continued manufacturing availability beyond current inventory levels.