AFCT-5750TLZ Equivalent & Substitute Parts

Part Overview

The AFCT-5750TLZ is a transceiver module manufactured by Broadcom Limited, classified as a General Purpose TXRX SFF OC12/STM-4 SR STD unit. This is a 622Mbps optical transceiver operating at 1300nm wavelength with LC Duplex connectors in a pluggable SFP form factor. The part is currently listed as Obsolete, making identification of equivalent and substitute parts essential for system maintenance, upgrades, and component sourcing.

Substiute Parts

AFCT-5750TLZ

Broadcom LimitedIn Stock: 1125AFCT-5750TLZ Datasheet

Current PartRFQ

HFBR-57E0LZ

Broadcom LimitedIn Stock: 1092HFBR-57E0LZ Datasheet

SimilarRFQ

AFCT-5750TLZ-C

ATGBICSIn Stock: 10563AFCT-5750TLZ-C Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AFCT-5750TLZ is determined by the following critical parameters:

• Connector Type: Must be LC Duplex to ensure physical compatibility with existing infrastructure
• Mounting Type: Must be Pluggable, SFP to maintain form factor compatibility
• Wavelength: 1300nm operation is a primary compatibility criterion
• Voltage Supply Range: Must operate within or be compatible with 3.1V ~ 4.6V supply specifications
• RoHS and REACH Compliance: Must maintain ROHS3 Compliant and REACH Unaffected status for regulatory alignment

The identified substitute parts meet these core mechanical and electrical compatibility requirements while accommodating the obsolescence of the original component.

Parameter Comparison

Engineering Selection Recommendations

HFBR-57E0LZ is an Active product from Broadcom Limited with full ROHS3 compliance and REACH Unaffected status. This substitute maintains LC Duplex connector compatibility and SFP pluggable form factor. The 1300nm wavelength matches the original specification. However, the data rate of 155MBd is lower than the original 622Mbps, requiring verification that system bandwidth requirements can accommodate this reduction. The MSL rating of 1 (Unlimited) provides superior moisture handling compared to the original MSL 3 specification.

AFCT-5750TLZ-C is an Active product from ATGBICS with higher data rate capability at 1.25Gbps and operates at 1310nm wavelength, which is within the 1300nm band. The LC connector configuration differs from the LC Duplex specification of the original part. This substitute offers increased bandwidth capacity but requires confirmation that the connector type change is compatible with existing infrastructure. RoHS and REACH compliance status are not specified for this part.

Frequently Asked Questions (FAQ)

Q: Can HFBR-57E0LZ be used as a direct replacement for AFCT-5750TLZ?

A: HFBR-57E0LZ meets the mechanical requirements (LC Duplex, SFP pluggable form factor) and wavelength specification (1300nm). However, the data rate is 155MBd versus the original 622Mbps. Substitution is valid only if system bandwidth requirements do not exceed 155MBd capacity.

Q: What is the significance of the MSL rating difference between the main part and substitutes?

A: The original AFCT-5750TLZ has MSL 3 (168 Hours), indicating moisture sensitivity requiring controlled storage conditions. HFBR-57E0LZ has MSL 1 (Unlimited), providing superior moisture tolerance and reduced handling restrictions. AFCT-5750TLZ-C lists MSL as Not Applicable, indicating no moisture sensitivity constraint.

Q: Why does AFCT-5750TLZ-C show LC connector instead of LC Duplex?

A: The connector designation difference may reflect packaging or specification documentation variations. Physical compatibility with existing LC Duplex infrastructure must be verified before deployment.

Q: Are all substitute parts RoHS3 compliant?

A: HFBR-57E0LZ is confirmed ROHS3 Compliant. AFCT-5750TLZ-C does not specify RoHS status in the provided data. Compliance verification is required before use in regulated applications.

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

A: Both wavelengths operate within the 1300nm band used for long-wavelength single-mode and multimode fiber applications. The 10nm difference is within standard optical transceiver operating ranges for this category.