ABCU-5700RZ Equivalent & Substitute Parts

Part Overview

The ABCU-5700RZ is a transceiver module manufactured by Broadcom Limited, designed for Ethernet applications operating at 1.25Gbps. This pluggable SFP module features an RJ45 connector and operates at 3.3V supply voltage. The product is currently classified as obsolete, making identification of functionally equivalent alternatives essential for system maintenance, repair, and component sourcing in legacy installations.

Substiute Parts

ABCU-5700RZ

Broadcom LimitedIn Stock: 1249ABCU-5700RZ Datasheet

Current PartRFQ

ABCU-5700RZ-C

ATGBICSIn Stock: 8429ABCU-5700RZ-C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ABCU-5700RZ is determined by the following critical parameters:

• Data Rate Compatibility: The substitute must support 1.25Gbps or higher Ethernet data rates to maintain system performance
• Supply Voltage: 3.3V operation is required for compatibility with existing host equipment
• Connector Type: RJ45 connector is mandatory for physical and electrical interface compatibility
• Mounting Type: Pluggable SFP form factor ensures mechanical fit within SFP module slots
• Application Domain: Ethernet networking applications define the operational context

The ABCU-5700RZ-C, manufactured by ATGBICS, meets all critical substitution criteria. While the ATGBICS part operates at 1000Mbps (1Gbps) rather than 1.25Gbps, this represents a backward-compatible data rate within the same Ethernet family and is suitable for systems where the host interface supports both rates.

Parameter Comparison

Engineering Selection Recommendations

The ABCU-5700RZ-C is the designated manufacturer-recommended substitute for the obsolete ABCU-5700RZ. Selection of this alternative is supported by:

• Product Status: The substitute is active and in current production, ensuring long-term availability and supply chain continuity
• Compliance Alignment: Both parts maintain REACH Unaffected status, confirming regulatory compatibility
• Electrical Compatibility: Matching 3.3V supply voltage and RJ45 connector specification ensure direct integration into existing host systems
• Backward Compatibility: The 1000Mbps data rate of the substitute is compatible with 1.25Gbps-capable host interfaces, as Ethernet standards support multiple data rates on the same physical interface

Frequently Asked Questions (FAQ)

Q: Can the ABCU-5700RZ-C operate in systems designed for the ABCU-5700RZ?

A: Yes. The ABCU-5700RZ-C is electrically and mechanically compatible. Both modules use 3.3V supply voltage, RJ45 connectors, and pluggable SFP form factors. The 1000Mbps data rate is backward-compatible with systems supporting 1.25Gbps operation.

Q: What is the difference between the two parts?

A: The primary difference is data rate: ABCU-5700RZ operates at 1.25Gbps, while ABCU-5700RZ-C operates at 1000Mbps. Both are Ethernet transceiver modules with identical connector types and supply voltages. The ATGBICS part is explicitly designated as copper-based and is currently in active production.

Q: Why is the original part obsolete?

A: The ABCU-5700RZ is classified as obsolete by Broadcom Limited. The ABCU-5700RZ-C provides equivalent functionality for Ethernet applications and is the recommended alternative for new designs and component replacement.

Q: Are there any compliance concerns with substitution?

A: No. Both parts maintain REACH Unaffected status, confirming regulatory compliance. The substitute does not introduce additional compliance requirements.

Q: What packaging is available for the substitute?

A: The ABCU-5700RZ-C is supplied in Tray packaging, suitable for production and inventory management in networking equipment manufacturing.