AFBR-5205ATZ Equivalent & Substitute Parts

Part Overview

The AFBR-5205ATZ is a transceiver module designed for ATM/SONET/OC-3 applications operating at 155Mbps with 1310nm wavelength transmission. This module features an ST connector interface and operates within a 4.75V to 5.25V supply voltage range, utilizing through-hole mounting technology. The product is classified as obsolete, making identification of compatible substitute components essential for system maintenance, legacy system support, and component procurement planning.

Substiute Parts

AFBR-5205ATZ

Broadcom LimitedIn Stock: 931AFBR-5205ATZ Datasheet

Current PartRFQ

AFBR-5205ATZ-C

ATGBICSIn Stock: 8446AFBR-5205ATZ-C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AFBR-5205ATZ is determined by the following critical parameters:

• Data Rate: 155Mbps (exact match required)
• Wavelength: 1310nm nominal (1300nm acceptable within standard optical tolerances for this application class)
• Connector Type: ST interface (physical and electrical compatibility)
• Mounting Type: Through Hole (PCB integration requirement)
• Voltage Supply Range: Compatibility within or encompassing 4.75V ~ 5.25V

The substitute part AFBR-5205ATZ-C meets these criteria through equivalent electrical performance specifications and compatible physical form factor, enabling direct functional replacement in legacy systems.

Parameter Comparison

Engineering Selection Recommendations

The AFBR-5205ATZ-C serves as a functional equivalent for the obsolete AFBR-5205ATZ based on matching data rate (155Mbps), compatible wavelength specification (1300nm vs. 1310nm), and identical through-hole mounting architecture. The substitute maintains ST connector compatibility and operates within the required voltage envelope.

The AFBR-5205ATZ-C carries active product status with RoHS compliance certification, providing advantages for new procurement and regulatory compliance in applications where environmental standards apply. Both components maintain REACH Unaffected status.

Physical integration requires verification of connector orientation and PCB footprint alignment, as the substitute specifies ST Duplex configuration compared to the original ST interface.

Frequently Asked Questions (FAQ)

Q: Can AFBR-5205ATZ-C directly replace AFBR-5205ATZ in existing designs?

A: The AFBR-5205ATZ-C provides electrical and functional equivalence at the 155Mbps data rate with compatible wavelength and through-hole mounting. Physical connector configuration (ST Duplex vs. ST) requires mechanical verification against the existing PCB layout and connector receptacle specifications.

Q: What is the wavelength tolerance between 1310nm and 1300nm?

A: Both wavelengths fall within the standard 1310nm window specification for this transceiver class. The 10nm variance is within acceptable optical performance parameters for 155Mbps Ethernet applications.

Q: Does the 5V fixed supply voltage of the substitute differ from the 4.75V ~ 5.25V range of the original?

A: The substitute operates at 5V nominal, which falls within the original part's specified range. Systems designed for the 4.75V ~ 5.25V range will accommodate the 5V operating point.

Q: What is the significance of the ST Duplex connector on the substitute?

A: ST Duplex provides dual-channel capability. Physical compatibility depends on the receiving connector type in the target application. Mechanical fit verification is required before deployment.

Q: Why is the original part classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The AFBR-5205ATZ-C, with active status, represents current-generation equivalent technology for legacy system support and component replacement.