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Broadcom Limited HFBR-57E0ALZ
- Part No.:
- HFBR-57E0ALZ
- Manufacturer:
- Broadcom Limited
- Category:
- Fiber Optic Transceiver Modules
- Package:
- Datasheet:
-
HFBR-57E0ALZ.pdf
- Description:
- TXRX MM SFP LC CONN STD DELATCH
- Quantity:
- Payment:
- Shipping:
Inventory:2,800
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Product details
Overview
HFBR-57E0ALZ 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, +3.3 V single-supply operation, LC duplex optical interface, and -40 °C to +85 °C industrial temperature range.
For engineers reviewing the HFBR-57E0ALZ datasheet, pinout, applications, or equivalent options, this page delivers verified electrical interface timing (RD+/RD−, TD+/TD−), optical performance (−19 dBm min Tx power, −31 dBm min Rx sensitivity), LOS logic behavior (+3.3 V TTL open-collector), SFP MSA-compliant pin mapping, and bail de-latch mechanical option confirmation.
Technical Context
The HFBR-57E0ALZ implements a fully integrated SFP transceiver architecture with separate transmitter and receiver signal paths. Its transmitter uses a custom silicon IC to convert differential PECL inputs (ECL-referenced to +3.3 V) into analog LED drive current for the 1300 nm InGaAsP LED; the receiver employs an InGaAs PIN photodiode coupled to a transimpedance preamplifier and quantizer IC to generate squelch-enabled differential PECL outputs and a +3.3 V TTL Loss of Signal (LOS) indicator.
It complies with ATM Forum UNI SONET OC-3, IEEE 802.3u 100Base-FX, and FDDI PMD optical standards, supports 62.5/125 μm and 50/125 μm multimode fiber, and incorporates internal AC coupling, 100 Ω differential termination, and EEPROM-based serial ID per SFP MSA specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Wavelength | 1270–1380 nm center wavelength; enables compatibility with standard multimode fiber infrastructure for OC-3 and Fast Ethernet. |
| Transmit Optical Power (BOL) | −19 dBm min (62.5/125 μm); sufficient for ≥2 km link budget in compliant multimode fiber systems. |
| Receiver Sensitivity (BER ≤1×10⁻¹⁰) | −31 dBm min at eye center (OC-3); ensures robust detection under worst-case jitter and aging conditions. |
| Data Interface | Differential PECL (ECL-shifted to +3.3 V); eliminates need for external level-shifting or biasing on host board. |
| LOS Output | +3.3 V TTL open-collector; requires external 4.7–10 kΩ pull-up; asserts high when optical input falls below −31 dBm. |
| Supply Voltage | +3.3 V ±10%; supports single-rail system design with VCCT and VCCR pins separately decoupled. |
| Temperature Range | −40 °C to +85 °C; validated for industrial-grade deployment in telecom access equipment and ruggedized networking gear. |
Pinout & Package
HFBR-57E0ALZ uses the industry-standard SFP package (55.2 mm × 13.5 mm × 8.5 mm) with integral LC duplex optical connector and bail de-latch mechanical option. The module conforms to Multi-Source Agreement (MSA) mechanical and electrical specifications, including hot-plug capability and 3-stage pin sequencing (ground → power → signal).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1, 17, 20 | VEET | Transmitter ground reference; must be connected to host board chassis ground for EMI control and signal integrity. |
| 3 | Tx Disable | Active-high disable control; pulls transmitter LED off when driven >2.0 V; open-circuit defaults to enabled. |
| 4, 5 | MOD-DEF2 / MOD-DEF1 | Two-wire serial ID clock/data lines; require 4.7–10 kΩ pull-up on host board for EEPROM communication. |
| 6 | MOD-DEF0 | Module presence detect; grounded internally to indicate valid insertion to host controller. |
| 8 | LOS | Open-collector TTL output; pulled high by external resistor; low = normal optical link, high = fault condition. |
| 9–11, 14 | VEER | Receiver ground; dedicated return path isolates receiver noise from transmitter circuitry. |
| 12–13 | RD− / RD+ | Differential PECL receive data outputs; internally AC-coupled and terminated; 400–2000 mV p-p swing. |
| 15 | VCCR | +3.3 V receiver supply; must be filtered per MSA spec (10 μF + 0.1 μF + 1 μH) to suppress switching noise. |
| 16 | VCCT | +3.3 V transmitter supply; separate rail prevents supply coupling between Tx and Rx sections. |
| 18–19 | TD+ / TD− | Differential PECL transmit data inputs; accept 400–1200 mV p-p for optimal EMI performance; internally terminated. |
Key Features
| Feature | Design Value |
|---|---|
| RoHS-compliant construction | Meets EU Directive 2002/95/EC; enables global deployment without hazardous substance restrictions. |
| Integrated AC coupling & termination | Eliminates need for external capacitors and resistors on host PCB; reduces BOM count and layout complexity. |
| Squelch-enabled receiver outputs | Forces RD+/RD− to steady PECL levels during LOS assert, preventing metastability in downstream SerDes. |
| MSA-compliant serial ID EEPROM | Stores part number (HFBR-57E0ALZ), compliance codes (OC-3/Fast Ethernet), date code, and vendor data per SFP MSA. |
| Bail de-latch mechanical option | Enables secure insertion/removal in high-vibration environments; confirmed for HFBR-57E0ALZ/APZ variants. |
Applications
| ATM Switch Infrastructure | SONET/SDH Access Node |
|---|---|
Use Scenario: Deployed in carrier-class ATM edge switches aggregating enterprise traffic onto metro rings. IC Role / Device Role / Timing Role: Physical layer transceiver converting electrical SerDes signals to 1300 nm optical pulses compliant with ATM UNI OC-3. Use Value: Delivers −31 dBm receiver sensitivity and <1.2 ns systematic jitter to maintain BER ≤1×10⁻¹⁰ across 2 km of 62.5/125 μm fiber. | Use Scenario: Installed in SDH add-drop multiplexers (ADMs) at cell tower backhaul sites. IC Role / Device Role / Timing Role: OC-3 optical interface providing STM-1 connectivity with full ITU-T G.957 compliance. Use Value: Industrial −40 °C to +85 °C rating ensures uninterrupted operation in uncontrolled outdoor cabinets. |
| Fast Ethernet Backbone | FDDI Migration Link |
Use Scenario: Interconnecting legacy industrial control networks over existing multimode fiber plant. IC Role / Device Role / Timing Role: 100Base-FX PHY transceiver supporting IEEE 802.3u with automatic squelch and LOS monitoring. Use Value: −19 dBm minimum Tx power and 50/125 μm fiber support enable reuse of installed 500 m backbone runs. | Use Scenario: Replacing aging FDDI NICs in financial data centers requiring backward-compatible optical links. IC Role / Device Role / Timing Role: Drop-in optical replacement meeting FDDI PMD spectral and sensitivity requirements. Use Value: Full compliance with FDDI optical performance specs ensures bit-for-bit interoperability without protocol stack changes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SFP transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HFBR-57E0LZ | Commercial temperature range (0 °C to +70 °C); no bail de-latch; identical optical/electrical specs. | Targeted for controlled indoor data center environments only. | Select HFBR-57E0LZ only if ambient operating temperature remains within 0–70 °C and mechanical retention is not required. |
| AFBR-57E5APZ | Same form factor and pinout; uses VCSEL instead of LED; higher bandwidth (up to 1.25 Gbps); lower power (165 mA max). | Supports Gigabit Ethernet and enhanced SONET OC-12; not suitable for legacy 155 Mbps OC-3 systems requiring LED spectral width. | Choose AFBR-57E5APZ only when upgrading to higher-speed protocols and verifying LED-vs-VCSEL spectral compatibility with installed fiber. |
Compared with HFBR-57E0ALZ, HFBR-57E0LZ lacks industrial temperature and mechanical latching-making it unsuitable for outdoor or mobile infrastructure-while AFBR-57E5APZ trades LED-based OC-3 compliance for VCSEL speed and efficiency, requiring full optical layer revalidation.
Availability
HFBR-57E0ALZ is available at Aetrix Electronics and suitable for SONET OC-3 infrastructure, industrial Fast Ethernet backbones, and telecom access node deployments requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for HFBR-57E0ALZ 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) designs high-performance optical interconnect solutions for datacom, telecom, and industrial markets.
The HFBR-57E0ALZ belongs to Avago's legacy SFP transceiver product line, engineered specifically for cost-sensitive, reliability-critical multimode fiber applications in SONET OC-3, Fast Ethernet, and FDDI systems.
FAQ
What is the operating temperature range specified for the HFBR-57E0ALZ?
The HFBR-57E0ALZ is rated for case operating temperatures from −40 °C to +85 °C, validated across full electrical and optical specifications. This industrial-grade range is explicitly confirmed for the ALZ/APZ variant suffixes in the datasheet's Recommended Operating Conditions table and distinguishes it from commercial variants like HFBR-57E0LZ (0 °C to +70 °C). The extended range supports deployment in outdoor cabinets, transportation systems, and factory-floor networking equipment where ambient conditions exceed commercial limits.
Does the HFBR-57E0ALZ support hot-plug insertion and removal?
Yes, the HFBR-57E0ALZ fully supports hot-plug operation per the SFP Multi-Source Agreement. Its mechanical design includes controlled 3-stage pin sequencing (ground → power → signal) and EMI shield contact prior to electrical engagement, enabling safe insertion or removal while the host system remains powered and operational. This capability is essential for carrier-grade network maintenance without service interruption and is functionally identical across all HFBR-57E0 variants, including HFBR-57E0ALZ.
What optical fiber types are compatible with the HFBR-57E0ALZ?
The HFBR-57E0ALZ is qualified for use with both 62.5/125 μm and 50/125 μm multimode fiber, as stated in the Features section and verified in the Transmitter Optical Characteristics table. It meets the optical launch requirements of IEEE 802.3u 100Base-FX, FDDI PMD, and SONET OC-3 standards on these fiber types. The device does not support single-mode fiber; attempting to use it with SMF will result in excessive loss and failure to meet sensitivity or power budget specifications.
How is the Loss of Signal (LOS) output configured on the HFBR-57E0ALZ?
The LOS output on HFBR-57E0ALZ is an open-collector +3.3 V TTL signal (Pin 8) that drives high when optical input falls below the defined assert threshold (−31 dBm for OC-3). It requires an external 4.7–10 kΩ pull-up resistor to VCC on the host board. When asserted, LOS forces RD+/RD− to steady-state PECL levels (high/low) via internal squelch, preventing metastability. This behavior is identical across all HFBR-57E0 variants and is documented in Table 2 and the LOS functional description.
Is the HFBR-57E0ALZ RoHS compliant and what certifications does it hold?
Yes, the HFBR-57E0ALZ is RoHS compliant per EU Directive 2002/95/EC, as explicitly stated in the Features section. It also carries TUV certification R 72042022, UL/CSA Joint Component Recognition (UL File# E173874), Class 1 laser safety per EN60825-1, and meets FCC Class B, CENELEC EN55022, and VCCI Class 1 EMI standards. These certifications are verified in the Regulatory Compliance table and apply specifically to the HFBR-57E0ALZ variant, not inferred from family-level claims.
HFBR-57E0ALZ 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-57E0ALZ FAQ
1.How can I place an order for HFBR-57E0ALZ through Aetrix?
Please submit a Request for Quotation (RFQ) for HFBR-57E0ALZ 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-57E0ALZ reliable?
The price and inventory of HFBR-57E0ALZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HFBR-57E0ALZ is usually 5 days.
3.What payment methods are accepted for HFBR-57E0ALZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HFBR-57E0ALZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HFBR-57E0ALZ?
HFBR-57E0ALZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HFBR-57E0ALZ 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-57E0ALZ?
For technical support, including HFBR-57E0ALZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HFBR-57E0ALZ requirements.
6.How does Aetrix verify that HFBR-57E0ALZ is sourced from the original manufacturer or authorized distributors?
All HFBR-57E0ALZ 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-57E0ALZ meets industry standards.
7.What is the process for return or replacement of HFBR-57E0ALZ?
All HFBR-57E0ALZ units undergo pre-shipment inspection (PSI). If there is an issue with HFBR-57E0ALZ, 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-57E0ALZ part is unused and in its original packaging.
Return procedure for HFBR-57E0ALZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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