AFBR-89CTHZ Equivalent & Substitute Parts

Part Overview

The AFBR-89CTHZ is a QSFP28 transceiver module manufactured by Broadcom Limited, designed for 100 Gbps bidirectional communication at 850 nm wavelength. This component functions as a pluggable optical transceiver for high-speed data center and enterprise networking applications. The part is designated as Last Time Buy, indicating that Broadcom has discontinued or will discontinue production. Identifying equivalent substitute parts is necessary to ensure continued availability for system integration, maintenance, and future deployments.

Substiute Parts

AFBR-89CTHZ

Broadcom LimitedIn Stock: 904AFBR-89CTHZ Datasheet

Current PartRFQ

FTLC9558REPM

CoherentIn Stock: 1044FTLC9558REPM Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AFBR-89CTHZ are identified based on the following critical parameters that determine functional and mechanical compatibility:

Core Substitution Criteria:

• Data Rate: 100 Gbps (or equivalent performance specification)
• Wavelength: 850 nm (multimode fiber standard)
• Mounting Type: Pluggable QSFP28 form factor
• Connector Type: MTP® (MPO) interface
• Application: Ethernet transceiver module
• Compliance: ROHS3 Compliant

The FTLC9558REPM from Coherent meets these substitution criteria. Both parts operate at 850 nm wavelength with QSFP28 pluggable form factor and MTP® (MPO) connectors, enabling direct mechanical and optical compatibility in host systems designed for QSFP28 transceivers.

Parameter Comparison

Engineering Selection Recommendations

AFBR-89CTHZ (Broadcom Limited): The AFBR-89CTHZ is designated Last Time Buy, indicating end-of-life status. This part remains ROHS3 compliant and suitable for existing system maintenance and support. However, new designs and long-term inventory planning should not rely on this part due to production discontinuation.

FTLC9558REPM (Coherent): The FTLC9558REPM is an Active product from Coherent, ensuring ongoing availability and manufacturing support. This part meets all critical substitution parameters: 850 nm wavelength, QSFP28 form factor, MTP® (MPO) connector compatibility, and ROHS3 compliance. The data rate specification of 103.1 Gbps exceeds the 100 Gbps requirement, providing performance margin. The MSL rating of 1 (Unlimited) offers superior moisture handling compared to the AFBR-89CTHZ MSL 3 rating. Both parts share identical ECCN and HTSUS classifications, confirming regulatory equivalence.

For new system designs and long-term deployments, the FTLC9558REPM is the appropriate selection due to active product status and superior environmental specifications.

Frequently Asked Questions (FAQ)

Q: Can the FTLC9558REPM directly replace the AFBR-89CTHZ in existing systems?

A: Yes. Both parts are QSFP28 pluggable transceivers operating at 850 nm wavelength with MTP® (MPO) connectors. The mechanical form factor and optical interface are identical, enabling direct physical and functional substitution in host systems designed for QSFP28 modules.

Q: What is the significance of the data rate difference (100 Gbps vs. 103.1 Gbps)?

A: The FTLC9558REPM data rate of 103.1 Gbps exceeds the AFBR-89CTHZ specification of 100 Gbps. This higher performance specification ensures compatibility with 100 Gbps Ethernet standards and provides operational margin. The substitute part will function correctly in systems specified for 100 Gbps operation.

Q: Why is the MSL rating different between the two parts?

A: The AFBR-89CTHZ has MSL 3 (168 hours maximum exposure to 85°C/85% RH), while the FTLC9558REPM has MSL 1 (unlimited exposure). MSL 1 indicates superior moisture resistance and less stringent handling requirements during storage and assembly. The FTLC9558REPM offers more favorable environmental specifications for supply chain management.

Q: Are both parts ROHS3 compliant?

A: Yes. Both the AFBR-89CTHZ and FTLC9558REPM are ROHS3 compliant, confirming restriction of hazardous substances in accordance with applicable regulations.

Q: Do both parts share the same regulatory classifications?

A: Yes. Both parts are classified under ECCN 5A991B1 and HTSUS code 8517.62.0090, indicating identical export control and tariff classifications.

Q: Why is the AFBR-89CTHZ designated Last Time Buy?

A: Last Time Buy status indicates that Broadcom has announced end-of-production for this part. Customers requiring this component must place final orders within a specified window before manufacturing ceases. This designation makes identifying active substitute parts essential for long-term system support and future deployments.