AFBR-5205TZ Equivalent & Substitute Parts

Part Overview

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

Substiute Parts

AFBR-5205TZ

Broadcom LimitedIn Stock: 1193AFBR-5205TZ Datasheet

Current PartRFQ

AFBR-5805TZ

Broadcom LimitedIn Stock: 1254AFBR-5805TZ Datasheet

DirectRFQ

AFBR-5205TZ-C

ATGBICSIn Stock: 9354AFBR-5205TZ-C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AFBR-5205TZ are identified based on the following critical parameters that determine functional compatibility:

Primary Compatibility Criteria:

• Connector Type: ST (required match)
• Mounting Type: Through Hole (required match)
• Wavelength: 1310nm or 1300nm (within acceptable optical range)
• Data Rate: 155Mbps (required match)

Secondary Considerations:

• Voltage Supply Range: Original operates at 4.75V ~ 5.25V; substitutes may operate at different voltage levels but must be compatible with system power architecture
• Product Status: Active products are preferred over obsolete components for long-term availability
• Compliance Certifications: RoHS and REACH status indicate regulatory compliance for new designs

Two substitute parts meet the core compatibility criteria while maintaining the essential electrical and mechanical interfaces required for direct substitution.

Parameter Comparison

Engineering Selection Recommendations

AFBR-5805TZ (Broadcom Limited): This substitute maintains the same manufacturer lineage and optical specifications (1310nm wavelength, ST connector, through-hole mounting). The primary distinction is the reduced supply voltage requirement (3.3V versus 4.75V ~ 5.25V). This component is currently active in production with RoHS3 compliance and superior moisture handling characteristics (MSL 1 versus MSL 3). Selection of this part requires verification that the system power architecture can accommodate 3.3V operation.

AFBR-5205TZ-C (ATGBICS): This substitute is offered by ATGBICS and maintains the critical 155Mbps data rate with near-equivalent wavelength (1300nm versus 1310nm). The ST connector and through-hole mounting are preserved. This component is active in production with RoHS compliance. Like the AFBR-5805TZ, it operates at 3.3V supply voltage. The ATGBICS offering provides an alternative source for the same functional specification.

Both substitutes are active products with current manufacturing status, providing improved long-term availability compared to the obsolete AFBR-5205TZ. Selection between them depends on system voltage compatibility and preferred supplier relationship.

Frequently Asked Questions (FAQ)

Q: Can AFBR-5805TZ directly replace AFBR-5205TZ in existing designs?

A: Direct replacement requires system-level voltage compatibility verification. The AFBR-5805TZ operates at 3.3V supply voltage, while the original AFBR-5205TZ requires 4.75V ~ 5.25V. If the system power architecture supports 3.3V operation, the ST connector and through-hole mounting provide mechanical and electrical interface compatibility.

Q: What is the significance of the wavelength difference between 1310nm and 1300nm?

A: Both wavelengths operate within the standard 1300nm optical window used for long-distance fiber optic transmission. The 10nm difference falls within acceptable tolerances for most ATM/SONET/OC-3 applications. System-specific optical budget calculations should confirm compatibility with existing fiber infrastructure.

Q: Why is the AFBR-5205TZ classified as obsolete?

A: Broadcom Limited has transitioned this product line to newer offerings. The AFBR-5805TZ represents the active successor within the same product family, offering improved compliance certifications and moisture handling characteristics.

Q: Are there packaging differences between the main part and substitutes?

A: The AFBR-5205TZ is specified with standard packaging, AFBR-5805TZ is supplied in bulk packaging, and AFBR-5205TZ-C is supplied in tray packaging. These packaging variations do not affect the electrical or mechanical performance of the transceiver module itself.

Q: What does MSL 3 versus MSL 1 mean for component handling?

A: MSL (Moisture Sensitivity Level) 3 indicates the component requires controlled storage conditions with a maximum floor life of 168 hours after moisture exposure. MSL 1 (unlimited floor life) indicates superior moisture resistance and reduced handling constraints. Both substitutes offer improved moisture performance compared to the original part.

Q: Are both substitutes RoHS compliant?

A: Yes. AFBR-5805TZ is RoHS3 compliant, and AFBR-5205TZ-C is RoHS compliant. Both meet current environmental and regulatory requirements for new component procurement.