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Home > Products > Optoelectronics > Fiber Optic Transceiver Modules

Broadcom Limited HFBR-57E0LZ

Name: HFBR-57E0LZ
Brand: Broadcom Limited
SKU: HFBR-57E0LZ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: HFBR-57E0LZ

Manufacturer:: Broadcom Limited

Category:: Fiber Optic Transceiver Modules

Package:

Datasheet:: HFBR-57E0LZ.pdf

Description:: TXRX MM SFP LC CONN STD DELATCH

Quantity:: RFQ Add To RFQ list

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Product details

Overview

HFBR-57E0LZ from Broadcom (formerly Avago) is a Small Form Factor Pluggable (SFP) multimode fiber transceiver for SONET OC-3/SDH STM-1 and Fast Ethernet physical layers, featuring a 1300 nm InGaAsP LED transmitter and InGaAs PIN photodiode receiver, single +3.3 V supply, LC duplex connector, and industrial temperature range (–40 °C to +85 °C).

For engineers reviewing the HFBR-57E0LZ datasheet, pinout, applications, or equivalent options, this page delivers verified optical power budgets (–19 dBm BOL min), jitter specs (SJ ≤ 1.2 ns p-p), LOS threshold (–31 dBm deassert), differential PECL I/O compatibility, and SFP MSA-compliant electrical interface details critical for ATM switch, FDDI backbone, and OC-3 infrastructure design.

Technical Context

The HFBR-57E0LZ implements a fully integrated SFP transceiver architecture with separate transmitter and receiver subassemblies: the transmitter uses a custom silicon IC to convert differential PECL inputs into analog LED drive current for a 1300 nm InGaAsP LED, while the receiver combines an InGaAs PIN photodiode with a transimpedance preamplifier and quantizer IC to deliver squelch-enabled differential PECL outputs and TTL-compatible LOS signaling.

It complies with multiple industry standards including ATM Forum UNI SONET OC-3 multimode fiber PL, IEEE 802.3u 100Base-FX, and FDDI PMD, supporting 62.5/125 μm and 50/125 μm multimode fiber with optical rise/fall times ≤ 3.0 ns and spectral width ≤ 147 nm (FWHM), all within a hot-pluggable SFP package meeting ISO 9001 manufacturing requirements.

Key Specifications

Parameter	Value and Actual Design Meaning
Operating Wavelength	1270–1380 nm center wavelength; ensures compatibility with multimode fiber dispersion limits for OC-3 and Fast Ethernet.
Transmitter Output Power (BOL)	–19 dBm min (62.5/125 μm); provides sufficient link margin for up to 2 km multimode fiber at OC-3 rates.
Receiver Sensitivity (BER ≤1×10⁻¹⁰)	–31 dBm min (OC-3, eye center); guarantees reliable detection under worst-case jitter and aging conditions.
Data Rate Support	155.52 MBd (OC-3) and 125 MBd (Fast Ethernet); enables dual-standard interoperability without hardware change.
Supply Voltage	+3.3 V ±10%; simplifies power delivery with single-rail design and internal filtering per SFP MSA.
Temperature Range	–40 °C to +85 °C; supports deployment in industrial-grade telecom chassis and outdoor-access equipment.
LOS Threshold Hysteresis	1.5 dB; prevents false toggling during marginal optical signal conditions near sensitivity limit.

Pinout & Package

HFBR-57E0LZ uses the industry-standard SFP mechanical form factor (55.2 mm × 13.4 mm × 8.5 mm) with integral LC duplex optical interface and 20-pin card-edge electrical interface compliant with Multi-Source Agreement (MSA) specifications. The metal housing provides EMI shielding and ESD protection, and hot-plug capability is enabled by 3-stage pin sequencing (ground → power → signal).

Pin/Terminal	Circuit Role	Design Meaning
1, 17, 20	VEET	Transmitter ground reference; dedicated low-inductance return path for high-speed PECL driver circuitry.
3	Tx Disable	Active-high disable control; forces LED off and sets RD+/RD– to squelched PECL levels when asserted.
4, 5	MOD-DEF2 / MOD-DEF1	Two-wire serial ID interface (clock/data); enables host read of EEPROM contents per SFP MSA protocol.
6	MOD-DEF0	Module presence detect; grounded internally to signal module insertion to host controller.
8	LOS	Open-collector TTL output; pulled high externally to indicate loss of usable optical input signal.
12, 13	RD− / RD+	Differential receiver outputs; ac-coupled 100 Ω PECL signals, internally terminated, require no external coupling caps.
15	VCCR	Receiver power supply; 3.3 V ±10% input with max 150 mA draw; filtered per MSA Figure 6 requirements.
16	VCCT	Transmitter power supply; 3.3 V ±10% input with max 210 mA draw; includes internal bias resistors and ESD protection.
18, 19	TD+ / TD−	Differential transmitter inputs; accept 400–1200 mV p-p PECL/CML signals; ac-coupled and terminated inside module.

Key Features

Feature	Design Value
RoHS-compliant construction	Meets EU Directive 2002/95/EC; enables global deployment in environmentally regulated telecom infrastructure.
Squelch-enabled receiver outputs	Forces RD+/RD− to stable PECL logic states during LOS assert, preventing metastability in downstream SerDes.
Integrated EEPROM serial ID	AT24C01A-compatible 2-wire interface stores part number, compliance codes, date code, and vendor data per SFP MSA.
Class 1 eye safety certified	Complies with EN60825-1 and IEC 60825-1 under normal and single-fault conditions; eliminates need for user-level laser safety controls.
ESD robustness	Withstands ≥25 kV to LC receptacle (HBM) and ≥2200 V to electrical pins; reduces field failure risk in handling and system integration.

Applications

ATM Switch Infrastructure	FDDI Backbone Network
Use Scenario: Interconnecting ATM edge switches in metro access networks using multimode fiber links up to 2 km. IC Role / Device Role / Timing Role: HFBR-57E0LZ serves as the physical layer transceiver converting electrical PECL signals to 1300 nm optical pulses compliant with ATM UNI OC-3 specifications. Use Value: Delivers –31 dBm receiver sensitivity and <1.2 ns systematic jitter to maintain BER ≤1×10⁻¹⁰ across temperature and aging, ensuring carrier-grade uptime.	Use Scenario: Upgrading legacy FDDI campus backbones to support higher bandwidth while retaining existing 62.5/125 μm cabling plant. IC Role / Device Role / Timing Role: HFBR-57E0LZ acts as drop-in optical PHY for FDDI PMD layer, interfacing directly with MAC-layer controllers via differential PECL I/O. Use Value: Full compliance with FDDI PMD optical performance requirements enables seamless integration without redesign of line-card PCB layout or firmware.
SONET/SDH Add-Drop Multiplexer	Industrial Fast Ethernet Link
Use Scenario: Providing OC-3 optical interfaces in compact SDH ADMs deployed in harsh industrial environments with wide ambient temperature swings. IC Role / Device Role / Timing Role: HFBR-57E0LZ functions as the standardized SFP pluggable module delivering deterministic jitter performance (<0.25 ns SJ) required for synchronous SONET framing. Use Value: –40 °C to +85 °C operating range and metal-shielded housing ensure stable operation in uncontrolled enclosures, eliminating thermal derating concerns.	Use Scenario: Enabling noise-immune 100 Mbps Ethernet connectivity between PLCs and HMIs over 500 m of factory-floor multimode fiber. IC Role / Device Role / Timing Role: HFBR-57E0LZ operates as the physical medium dependent (PMD) layer for IEEE 802.3u 100Base-FX, providing galvanic isolation and EMI resilience. Use Value: Single +3.3 V supply, integrated termination, and 1.5 dB LOS hysteresis reduce BOM count and improve reliability in electrically noisy industrial settings.

ATM Switch Infrastructure

FDDI Backbone Network

Use Scenario: Interconnecting ATM edge switches in metro access networks using multimode fiber links up to 2 km.

IC Role / Device Role / Timing Role: HFBR-57E0LZ serves as the physical layer transceiver converting electrical PECL signals to 1300 nm optical pulses compliant with ATM UNI OC-3 specifications.

Use Value: Delivers –31 dBm receiver sensitivity and <1.2 ns systematic jitter to maintain BER ≤1×10⁻¹⁰ across temperature and aging, ensuring carrier-grade uptime.

Use Scenario: Upgrading legacy FDDI campus backbones to support higher bandwidth while retaining existing 62.5/125 μm cabling plant.

IC Role / Device Role / Timing Role: HFBR-57E0LZ acts as drop-in optical PHY for FDDI PMD layer, interfacing directly with MAC-layer controllers via differential PECL I/O.

Use Value: Full compliance with FDDI PMD optical performance requirements enables seamless integration without redesign of line-card PCB layout or firmware.

SONET/SDH Add-Drop Multiplexer

Industrial Fast Ethernet Link

Use Scenario: Providing OC-3 optical interfaces in compact SDH ADMs deployed in harsh industrial environments with wide ambient temperature swings.

IC Role / Device Role / Timing Role: HFBR-57E0LZ functions as the standardized SFP pluggable module delivering deterministic jitter performance (<0.25 ns SJ) required for synchronous SONET framing.

Use Value: –40 °C to +85 °C operating range and metal-shielded housing ensure stable operation in uncontrolled enclosures, eliminating thermal derating concerns.

Use Scenario: Enabling noise-immune 100 Mbps Ethernet connectivity between PLCs and HMIs over 500 m of factory-floor multimode fiber.

IC Role / Device Role / Timing Role: HFBR-57E0LZ operates as the physical medium dependent (PMD) layer for IEEE 802.3u 100Base-FX, providing galvanic isolation and EMI resilience.

Use Value: Single +3.3 V supply, integrated termination, and 1.5 dB LOS hysteresis reduce BOM count and improve reliability in electrically noisy industrial settings.

Equivalent & Alternatives

The following parts are listed as comparable options for similar SFP transceiver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
AFBR-57E5APZ	Same SFP form factor and 1300 nm LED architecture but rated for extended temperature (–40 °C to +85 °C) and includes bail latch option; identical optical specs and pinout.	Designed for applications requiring mechanical retention in high-vibration environments (e.g., transportation infrastructure).	Select AFBR-57E5APZ only if bail latch functionality and enhanced vibration resistance are required; otherwise HFBR-57E0LZ suffices for standard rack-mount deployments.
HFBR-57E1LZ	Uses VCSEL instead of LED; higher output power (–14 dBm BOL), lower jitter (<0.5 ns SJ), and improved power efficiency (180 mA max), but same SFP footprint and electrical interface.	Better suited for longer-reach or higher-margin links where LED aging and jitter limitations are critical constraints.	Choose HFBR-57E1LZ when upgrading legacy links beyond 1.5 km or when migrating toward tighter jitter budgets for future-proofing; HFBR-57E0LZ remains optimal for cost-sensitive OC-3/Fast Ethernet deployments.

Compared with AFBR-57E5APZ and HFBR-57E1LZ, HFBR-57E0LZ offers the lowest-cost SFP solution for standard-temperature OC-3 and Fast Ethernet applications, trading minor jitter and power advantages for proven reliability, broad standard compliance, and direct drop-in replacement in existing MSA-compliant ports.

Availability

HFBR-57E0LZ is available at Aetrix Electronics and suitable for SONET OC-3 infrastructure, FDDI backbone upgrades, and industrial Fast Ethernet links requiring stable component supply, long-term lifecycle continuity, and RoHS-compliant sourcing.

Supply support for HFBR-57E0LZ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Broadcom Inc. (acquired Avago Technologies in 2016) is a global leader in semiconductor solutions for wired and wireless communications, with deep expertise in optical interconnects and high-speed data transmission.

The HFBR-57E0LZ belongs to Avago's legacy SFP transceiver product line, engineered specifically for cost-effective, standards-compliant multimode fiber connectivity in telecom access, enterprise networking, and industrial automation systems.

FAQ

What is the maximum supported link distance for HFBR-57E0LZ on 62.5/125 μm multimode fiber?

The HFBR-57E0LZ supports up to 2 km on 62.5/125 μm multimode fiber at OC-3 rates (155.52 MBd), based on its –19 dBm minimum BOL output power and –31 dBm receiver sensitivity, assuming typical fiber attenuation of 1.0 dB/km and 0.5 dB per connector pair. This aligns with SONET OC-3 multimode fiber PL specifications and includes >3 dB system margin for aging and splices.

Does HFBR-57E0LZ support digital diagnostics monitoring (DDM) or DOM functionality?

No, HFBR-57E0LZ does not support DDM/DOM. It implements only the basic SFP MSA serial ID EEPROM (AT24C01A-compatible) for read-only identification data such as part number, compliance codes, and date code. Real-time monitoring of temperature, voltage, TX bias, or optical power is not provided - that functionality requires newer-generation SFP+ or enhanced SFP modules.

Can HFBR-57E0LZ be used interchangeably with HFBR-57E0ALZ in the same host port?

Yes, HFBR-57E0LZ and HFBR-57E0ALZ share identical pinout, electrical interface, optical specifications, and SFP mechanical dimensions. The sole difference is the bail latch option (ALZ includes it; LZ does not). Both operate over –40 °C to +85 °C, so HFBR-57E0LZ is functionally interchangeable in ALZ-designated ports unless mechanical retention is required.

What is the recommended external pull-up resistor value for the LOS pin on HFBR-57E0LZ?

The LOS pin on HFBR-57E0LZ is an open-collector TTL output and must be pulled up externally to a supply ≤ VCCT +0.3 V (i.e., ≤ 3.63 V) using a 4.7 kΩ to 10 kΩ resistor, as specified in Table 2 Note 3. A 4.7 kΩ resistor is preferred for faster rise time and noise immunity in high-speed board layouts.

How does the Tx Disable function behave electrically on HFBR-57E0LZ?

When Tx Disable is driven high (≥2.0 V) or left floating, the HFBR-57E0LZ disables its LED transmitter and forces RD+/RD− outputs into squelched PECL states (RD+ = high, RD− = low). The disable threshold is VIH ≥ 2.0 V and VIL ≤ 0.8 V, compatible with standard 3.3 V GPIO logic. No external pull-down is required - the pin is internally biased.

HFBR-57E0LZ Specifications

Product attributes: Attribute value

Manufacturer:: Broadcom Limited

Series:: -

Packaging:: Bulk

Product Status:: Active

Data Rate:: 155MBd

Wavelength:: 1300nm

Applications:: Ethernet

Voltage - Supply:: 3.3V

Connector Type:: LC Duplex

Mounting Type:: Pluggable, SFP

HFBR-57E0LZ FAQ

1.How can I place an order for HFBR-57E0LZ through Aetrix?

Please submit a Request for Quotation (RFQ) for HFBR-57E0LZ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for HFBR-57E0LZ reliable?

The price and inventory of HFBR-57E0LZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HFBR-57E0LZ is usually 5 days.

3.What payment methods are accepted for HFBR-57E0LZ?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HFBR-57E0LZ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for HFBR-57E0LZ?

HFBR-57E0LZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your HFBR-57E0LZ order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for HFBR-57E0LZ?

For technical support, including HFBR-57E0LZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HFBR-57E0LZ requirements.

6.How does Aetrix verify that HFBR-57E0LZ is sourced from the original manufacturer or authorized distributors?

All HFBR-57E0LZ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that HFBR-57E0LZ meets industry standards.

7.What is the process for return or replacement of HFBR-57E0LZ?

All HFBR-57E0LZ units undergo pre-shipment inspection (PSI). If there is an issue with HFBR-57E0LZ, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The HFBR-57E0LZ part is unused and in its original packaging.

Return procedure for HFBR-57E0LZ:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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