HFBR-2521 Fiber Optic Receiver Equivalent & Substitute Parts

Part Overview

The HFBR-2521 is a fiber optic receiver designed for general purpose applications with a 5MBd data rate. This component operates within a 4.75V to 5.25V supply voltage range and draws 6.2 mA of supply current. The HFBR-2521 is classified as obsolete, making identification of suitable substitute components necessary for ongoing system support and new design implementations.

Substiute Parts

HFBR-2521

Broadcom LimitedIn Stock: 5661HFBR-2521 Datasheet

Current PartRFQ

HFBR-2521Z

Broadcom LimitedIn Stock: 18395HFBR-2521Z Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HFBR-2521 is determined by the following critical parameters:

• Data Rate: 5MBd (must match)
• Voltage - Supply: 4.75V ~ 5.25V (must match)
• Manufacturer: Broadcom Limited (same manufacturer family)
• Moisture Sensitivity Level: Compatibility with storage and handling requirements
• REACH Status: REACH Unaffected (regulatory compliance maintained)

The HFBR-2521Z qualifies as a substitute based on matching data rate and supply voltage specifications. Both components are manufactured by Broadcom Limited and maintain REACH Unaffected status.

Parameter Comparison

Engineering Selection Recommendations

The HFBR-2521Z is the designated manufacturer substitute for the obsolete HFBR-2521. Both components share identical data rate and supply voltage specifications, ensuring functional compatibility in applications designed for the original part.

The HFBR-2521Z maintains REACH Unaffected regulatory status, consistent with the original component. The substitute is currently in active production status, providing supply continuity for systems requiring this fiber optic receiver function.

Current consumption increases from 6.2 mA to 10 mA in the substitute part. Power supply design must accommodate this higher current draw. The HFBR-2521Z provides specified minimum receivable power of -43dBm, whereas this parameter is not specified for the original HFBR-2521.

Moisture sensitivity level changes from MSL 1 (Unlimited) to MSL 3 (168 Hours). Storage and handling procedures must align with the more restrictive moisture sensitivity classification of the substitute component.

Frequently Asked Questions (FAQ)

Q: Can the HFBR-2521Z directly replace the HFBR-2521 in existing designs?

A: The HFBR-2521Z matches the critical electrical parameters of data rate (5MBd) and supply voltage (4.75V ~ 5.25V). Power supply design must account for increased current consumption (10 mA versus 6.2 mA). Moisture handling procedures must follow MSL 3 requirements rather than MSL 1.

Q: What is the primary reason for substitution?

A: The HFBR-2521 is classified as obsolete. The HFBR-2521Z is the active production equivalent from the same manufacturer, ensuring continued component availability.

Q: Are there packaging differences between these parts?

A: The HFBR-2521 packaging is not specified in the provided data. The HFBR-2521Z is supplied in Tube packaging.

Q: Do both parts meet the same regulatory requirements?

A: Both components maintain REACH Unaffected status. Regulatory compliance is maintained across the substitution.

Q: What is the impact of the increased current specification?

A: Current consumption increases from 6.2 mA to 10 mA. Power supply circuits must be verified to support this higher current draw without exceeding voltage regulation limits.