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Broadcom Limited AFBR-57B4APZ
- Part No.:
- AFBR-57B4APZ
- Manufacturer:
- Broadcom Limited
- Category:
- Fiber Optic Transceiver Modules
- Package:
- Datasheet:
-
AFBR-57B4APZ.pdf
- Description:
- DC-50MBD 850NM VCSEL SFP DMI
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
AFBR-57B4APZ from Broadcom is a DC-to-50-Mbaud, 850-nm VCSEL-based SFP transceiver for multimode fiber links, supporting up to 2 km over 62.5/125-μm fiber or 100 m over 200/230-μm fiber. It operates from a single 3.3V supply, delivers LVTTL-compatible electrical I/O, and integrates real-time digital diagnostics per SFF-8472 via an LC duplex optical interface - deployed in power substation automation and HVDC communication systems.
For engineers reviewing the AFBR-57B4APZ datasheet, pinout, applications, or equivalent options, key selection criteria include its Class 1 laser safety compliance, –40°C to +85°C industrial operating range, integrated DMI monitoring of temperature/voltage/Rx power, hot-pluggable SFP form factor, and verified ESD immunity (9 kV contact to LC receptacle).
Technical Context
The AFBR-57B4APZ implements a fully integrated transmitter with an 850-nm VCSEL and LVTTL-input driver IC, and a receiver with PIN photodiode and digitalizing IC delivering LVTTL/LVCMOS output logic - both powered at 3.3V. Its optical subassembly couples efficiently into multimode fiber using an optimized lens system.
It supports the SFF-8472 MSA-compliant two-wire serial interface (MOD-DEF1/2) at address 0xA2 for real-time monitoring of internal temperature (±5°C accuracy), supply voltage (±0.1 V), and received optical power (±3.0 dB). The module features Class 1 eye safety per IEC 60825-1 and FDA 21 CFR 1040.10/1040.11 under normal and single-fault conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | DC to 50 Mbaud - supports legacy industrial protocols and low-speed deterministic control links without clock recovery circuitry. |
| Optical Wavelength | 805–865 nm - centered on 850 nm for optimal coupling into standard multimode fiber with low dispersion. |
| Link Distance | Up to 2 km on 62.5/125-μm MMF - enables long-haul fiber runs in substations without repeaters. |
| Operating Temperature | –40°C to +85°C - qualified for outdoor and uncontrolled industrial environments including HVDC converter stations. |
| Power Supply | Single 3.3V ±10% - simplifies host board power design; total typical current draw is 32 mA (12 mA Tx + 20 mA Rx). |
| Laser Safety | Class 1 per IEC 60825-1 Ed. 3 - safe for unrestricted use without user-accessible interlocks or labeling requirements. |
| Digital Diagnostics | SFF-8472 compliant - provides real-time readout of temperature, Vcc, Tx bias, Tx power, and Rx power via I²C at 0xA2. |
Pinout & Package
The AFBR-57B4APZ uses the industry-standard SFP mechanical package (MSA-compliant), with LC duplex optical connector and hot-pluggable capability. Dimensions conform to SFP MSA Rev. 4.1, and housing combines UL-94V-0 flame-retardant plastic with metal shielding for EMI suppression.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1, 17–20, 3, 4, 9–11, 14 | VEET / VEER | Transmitter and receiver ground pins - internally connected; require separate low-impedance return paths on host PCB to minimize crosstalk. |
| 13 | RD+ | Receiver data output - LVTTL logic, non-inverted, 2.0–3.3V VOH, drives 50-Ω terminated line. |
| 18 | TD+ | Transmitter data input - LVTTL logic, 15 μA current-source loaded, compatible with SerDes or FPGA GPIO. |
| 15 | VCCR | Receiver 3.3V supply - must be decoupled with 10 μF + 0.1 μF capacitors near pin per datasheet layout guidance. |
| 16 | VCCT | Transmitter 3.3V supply - independent from VCCR; requires dedicated 1 μH choke and local decoupling. |
| 4–6 | MOD-DEF2 / MOD-DEF1 / MOD-DEF0 | I²C data/clock/presence pins - MOD-DEF0 grounded internally to signal module insertion; MOD-DEF1/2 pulled up externally for SFF-8472 access. |
Key Features
| Feature | Design Value |
|---|---|
| Hot-pluggable SFP form factor | Enables field-replaceable fiber connectivity without host system shutdown - critical for continuous operation in power automation systems. |
| Integrated digital diagnostics (SFF-8472) | Provides real-time visibility into temperature, supply voltage, and optical power levels - supports predictive maintenance and fault isolation in remote substations. |
| Class 1 laser safety certification | Eliminates need for external safety interlocks or warning labels - reduces system certification burden for HVDC and industrial OEMs. |
| High ESD immunity (9 kV contact to LC) | Withstands harsh handling during installation in live switchgear cabinets - exceeds IEC 61000-4-2 for field-deployed equipment. |
| –40°C to +85°C extended temperature range | Guarantees full optical and electrical performance across outdoor enclosure extremes - validated per CENELEC EN 55032:2012 for EMI robustness. |
Applications
| Power Substation Automation | HVDC Control & Monitoring |
|---|---|
Use Scenario: Fiber-optic communication between protective relays, RTUs, and bay controllers in high-voltage switchyards. IC Role / Device Role / Timing Role: Bidirectional serial data transceiver providing galvanically isolated, EMI-immune physical layer for IEC 61850 GOOSE and SV traffic. Use Value: 2 km reach eliminates need for intermediate repeaters; Class 1 safety avoids regulatory delays; DMI enables remote health monitoring of fiber link integrity. |
Use Scenario: Real-time control signal transmission between valve hall electronics and pole control units in HVDC converter stations. IC Role / Device Role / Timing Role: Low-latency, jitter-tolerant optical interface converting LVTTL control signals to 850-nm light for noise-immune transmission across magnetic fields. Use Value: Verified dV/dt rejection and EMI behavior ensure reliable operation near thyristor/IGBT switching noise; –40°C to +85°C rating supports uncooled outdoor enclosures. |
| Industrial Ethernet Backbone | Legacy Protocol Extension over Fiber |
Use Scenario: Connecting distributed PLCs and HMIs across factory floors using multimode fiber to avoid ground loops and RFI. IC Role / Device Role / Timing Role: Physical layer transceiver implementing DC-coupled LVTTL I/O compatible with industrial Ethernet MACs and custom serial protocols. Use Value: Hot-plug support allows maintenance without line stoppage; SFP form factor enables standardized spares inventory across multiple OEM platforms. |
Use Scenario: Extending RS-485, CAN, or proprietary serial bus signals over fiber in electric utility SCADA networks. IC Role / Device Role / Timing Role: Transparent optical repeater translating LVTTL-level serial data to/from fiber - no protocol awareness required. Use Value: DC-to-50-Mbaud bandwidth accommodates legacy 19.2 kbps to 40 Mbps protocols; low propagation delay (<15 ns Tx, <30 ns Rx) preserves timing integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SFP transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AFBR-57B5APZ | Same SFP package and 850-nm VCSEL, but rated for DC-to-125-Mbaud - higher bandwidth, higher power consumption (typ. 45 mA), and tighter optical specs. | Targeted at faster industrial Ethernet variants (e.g., PROFINET IRT); not needed for sub-50-Mbaud legacy protocols. | Select AFBR-57B5APZ only if future bandwidth headroom or IEEE 802.3 compatibility is required; AFBR-57B4APZ offers lower power and cost for fixed 50-Mbaud use cases. |
| AFBR-57E4APZ | Same 50-Mbaud rating and SFP form factor, but uses 1310-nm FP laser for single-mode fiber - supports up to 10 km on SMF, higher extinction ratio (12 dB min), and different DMI calibration. | Used where longer reach or EMI immunity beyond MMF limits is needed; incompatible with MMF infrastructure without media converters. | Choose AFBR-57E4APZ when deploying over single-mode fiber or requiring >2 km distance; AFBR-57B4APZ remains optimal for cost-sensitive, short-to-medium MMF links in substations. |
Compared with AFBR-57B5APZ and AFBR-57E4APZ, the AFBR-57B4APZ delivers the precise bandwidth, multimode reach, and thermal robustness needed for power automation - avoiding unnecessary cost, power, or complexity while maintaining full SFF-8472 diagnostic functionality and Class 1 safety.
Availability
AFBR-57B4APZ is available at Aetrix Electronics and suitable for power substation automation, HVDC control systems, and industrial networking over multimode fiber requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for AFBR-57B4APZ 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. is a global semiconductor leader designing high-performance connectivity, networking, and infrastructure solutions - headquartered in San Jose, CA, with ISO 9001-certified manufacturing facilities.
The AFBR-57B4APZ belongs to Broadcom's industrial-grade SFP transceiver product line, engineered specifically for electromagnetic harshness, extended temperature operation, and regulatory compliance in electric utility and heavy industrial applications.
FAQ
What is the maximum supported link distance for AFBR-57B4APZ on 62.5/125-μm multimode fiber?
The AFBR-57B4APZ supports up to 2 km on 62.5/125-μm multimode fiber with NA = 0.275. This distance is validated under specified operating conditions (–40°C to +85°C, 3.3V supply) and assumes BER ≤ 1×10⁻¹⁰. Performance may vary with fiber quality, connector cleanliness, and splice losses - actual deployment should include margin for aging and environmental stress.
Does AFBR-57B4APZ support digital diagnostics, and how is the interface accessed?
Yes, the AFBR-57B4APZ implements a full SFF-8472-compliant digital diagnostic monitoring interface accessible via a 2-wire I²C bus at address 0xA2. MOD-DEF1 (SCL) and MOD-DEF2 (SDA) pins must be pulled up externally (4.7–10 kΩ) to 3.3V. It provides real-time readings of temperature, supply voltage, Tx bias, Tx optical power, and Rx optical power - all with defined accuracy tolerances per the datasheet.
What is the operating temperature range for AFBR-57B4APZ, and is it guaranteed across that range?
The AFBR-57B4APZ is specified for ambient operating temperatures from –40°C to +85°C. All electrical and optical parameters - including data rate, extinction ratio, rise/fall times, and diagnostic accuracy - are guaranteed across this full range per the datasheet's Recommended Operating Conditions table. Thermal derating or parameter drift outside this range is not characterized.
Is AFBR-57B4APZ compatible with standard SFP host ports, and what connector type does it use?
Yes, the AFBR-57B4APZ complies fully with the SFP MSA specification (Rev. 4.1) and is mechanically and electrically compatible with standard SFP cages and host board layouts. It uses an LC duplex optical connector - confirmed by pinout, mechanical drawings, and MSA alignment specifications in the datasheet. Hot-plug functionality is fully supported.
What laser safety classification applies to AFBR-57B4APZ, and which standards does it meet?
The AFBR-57B4APZ is certified as a Class 1 laser product per IEC 60825-1 Ed. 3 and FDA 21 CFR 1040.10/1040.11, including testing under single-fault conditions. This classification means it is safe under all conditions of normal use and reasonably foreseeable misuse - no protective housings or user controls are required for compliance in end equipment.
AFBR-57B4APZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Broadcom Limited
- Series:
- -
- Packaging:
- Tray
- Product Status:
- Active
- Data Rate:
- 50MBd
- Wavelength:
- 845nm
- Applications:
- Networking
- Voltage - Supply:
- 3V ~ 3.6V
- Connector Type:
- LC Duplex
- Mounting Type:
- Pluggable, SFP
AFBR-57B4APZ FAQ
1.How can I place an order for AFBR-57B4APZ through Aetrix?
Please submit a Request for Quotation (RFQ) for AFBR-57B4APZ 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 AFBR-57B4APZ reliable?
The price and inventory of AFBR-57B4APZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AFBR-57B4APZ is usually 5 days.
3.What payment methods are accepted for AFBR-57B4APZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AFBR-57B4APZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AFBR-57B4APZ?
AFBR-57B4APZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AFBR-57B4APZ 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 AFBR-57B4APZ?
For technical support, including AFBR-57B4APZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AFBR-57B4APZ requirements.
6.How does Aetrix verify that AFBR-57B4APZ is sourced from the original manufacturer or authorized distributors?
All AFBR-57B4APZ 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 AFBR-57B4APZ meets industry standards.
7.What is the process for return or replacement of AFBR-57B4APZ?
All AFBR-57B4APZ units undergo pre-shipment inspection (PSI). If there is an issue with AFBR-57B4APZ, 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 AFBR-57B4APZ part is unused and in its original packaging.
Return procedure for AFBR-57B4APZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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