Broadcom Limited AFBR-5803AZ
- Part No.:
- AFBR-5803AZ
- Manufacturer:
- Broadcom Limited
- Category:
- Fiber Optic Transceiver Modules
- Package:
- Datasheet:
-
AFBR-5803AZ.pdf
- Description:
- TXRX OPT 1X9 100MBPS SC EXT TEMP
- Quantity:
- Payment:

- Shipping:

Inventory:1,781
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Product details
Overview
AFBR-5803AZ from Broadcom is a 1300-nm FDDI/ATM/100BASE-FX fiber-optic transceiver in a 1×9 SIP package with duplex SC or ST connector interface, supporting 100 Mb/s to 125 Mbaud signaling over multimode fiber up to 2 km, compliant with ISO/IEC 9314-3 and ANSI X3.166 standards for backbone links in substation automation and factory networks.
For engineers reviewing the AFBR-5803AZ datasheet, pinout, applications, or equivalent options, this transceiver delivers PECL-compatible differential data I/O, single-ended signal detect, –10°C to +85°C extended temperature operation, dual supply support (3.135–3.5 V or 4.75–5.25 V), and FDDI PMD-compliant optical performance on multimode fiber.
Technical Context
The AFBR-5803AZ integrates an InGaAsP LED transmitter and InGaAs PIN photodiode receiver with custom silicon driver and transimpedance preamplifier ICs, all housed in a shielded 1×9 SIP package with internal EMI suppression. Its optical subassembly uses low-cost lens elements and high-volume assembly for cost-effective 2-km multimode operation.
It supports differential PECL logic I/O referenced to VCC (–1.81 V to –0.88 V), features integrated signal detect with programmable thresholds (–45 dBm ON / –31 dBm OFF), and meets MIL-STD-883 Class 1 ESD immunity (>1500 V) and FCC/CISPR 22 Class B EMI limits with ≥9 dB margin using duplex SC or ST receptacles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Temp | –10°C to +85°C ambient, enabling deployment in industrial substations and factory automation environments without forced cooling. |
| Supply Voltage | 3.135–3.5 V or 4.75–5.25 V - dual-rail compatibility allows integration into legacy +5 V or modern +3.3 V systems without level-shifting. |
| Optical Wavelength | 1300 nm center wavelength with ≤10 nm spectral width - optimized for low dispersion in 62.5/125 µm and 50/125 µm multimode fiber. |
| Output Power | –19 dBm (min, BOL) into 62.5/125 µm fiber - provides ≥12 dB optical power budget at 2 km per FDDI PMD standard compliance. |
| Data Rate | 10–125 Mbaud signaling range - supports 100BASE-FX, ATM UNI 3.0, and FDDI physical layer with guaranteed BER ≤10⁻⁶. |
| Signal Detect | –45 dBm (ON threshold), –31 dBm (OFF threshold), <100 µs assertion - enables robust link fault detection in noisy industrial optical paths. |
| Package | Industry-standard 1×9 SIP with duplex SC/ST receptacle - ensures multisource board footprint compatibility and mechanical interoperability. |
Pinout & Package
AFBR-5803AZ uses a 1×9 SIP package with 9 electrical pins and two isolated solder posts for mechanical anchoring. The package height complies with duplex SC connector clearance requirements (max 39.12 mm), and the housing is molded from filled nonconductive plastic for EMI shielding and electrical isolation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 9 | VEE (Ground) | Common emitter reference for PECL I/O; must be connected to system ground plane for signal integrity and EMI control. |
| 2, 3 | RD+ / RD− | Differential receiver data outputs - PECL-compatible, terminated to VCC–2 V via 50 Ω for impedance matching. |
| 4 | SD | Single-ended signal detect output - active-high open-emitter, requires pull-up to VCC for logic-level interfacing. |
| 5, 6 | VCC | Primary power supply inputs - dual VCC pins reduce IR drop and improve noise rejection in high-speed operation. |
| 7, 8 | TD+ / TD− | Differential transmitter data inputs - ECL-referenced, accept –1.81 V to –0.88 V swing; require split-load termination at PHY. |
Key Features
| Feature | Design Value |
|---|---|
| FDDI PMD Compliance | Meets ISO/IEC 9314-3:1990 and ANSI X3.166–1990 optical specs - guarantees interoperability in certified FDDI backbone infrastructure. |
| 1300-nm LED Aging | <1 dB degradation over mission life - exceeds industry convention (1.5 dB), reducing link margin erosion in long-term deployments. |
| Dual Supply Support | Operates natively at +3.3 V or +5 V - eliminates external regulators and simplifies power architecture across mixed-voltage systems. |
| Wave Solder Compatible | Tin-copper/Ni-plated solder posts - withstands standard wave soldering and aqueous cleaning without optical alignment shift or EMI shield damage. |
| EMI Shielding | Internal shields for optical/electrical subassemblies - achieves ≥9 dB margin to CISPR 22 Class B, critical for EMC-certified industrial equipment. |
Applications
| Substation Automation | Factory Automation |
|---|---|
Use Scenario: Optical communication between protective relays and bay controllers in high-EMI HV substations over 2-km multimode fiber runs. IC Role / Device Role / Timing Role: Physical layer transceiver implementing FDDI PMD-compliant 100 Mb/s serial link with deterministic signal detect latency (<100 µs). Use Value: Immunity to conducted EMI and >9 dB EMI margin ensure reliable operation in 50/60 Hz magnetic fields and switching transients. | Use Scenario: Real-time motion control network linking PLCs, drives, and I/O modules across manufacturing cells using 100BASE-FX. IC Role / Device Role / Timing Role: Full-duplex 100 Mb/s fiber interface with PECL I/O for low-jitter, low-latency deterministic Ethernet traffic. Use Value: Guaranteed 10–125 Mbaud operation and <2.2 ns output rise/fall times maintain signal integrity at 100 Mb/s over 2 km of 62.5/125 µm fiber. |
| Merging Unit Interface | Media Converter Bridge |
Use Scenario: Digitized current/voltage sampling data transmission from merging units to process buses in IEC 61850-9-2 systems. IC Role / Device Role / Timing Role: Optical physical layer device supporting ATM 100-Mb/s UNI 3.0 interface for time-synchronized sampled value transport. Use Value: FDDI LCF-PMD compliance ensures precise jitter allocation (<1 UI peak-to-peak) required for sub-microsecond timestamp accuracy. | Use Scenario: Copper-to-fiber media conversion in wiring closets to extend Fast Ethernet reach beyond 100 m UTP limitations. IC Role / Device Role / Timing Role: Standalone transceiver enabling 100BASE-FX operation on existing 1×9 footprint boards with SC or ST connectivity. Use Value: Dual SC/ST receptacle option and multisource 1×9 footprint allow drop-in replacement in legacy media converter designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fiber-optic transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AFBR-5803Z | Commercial temperature range (0°C to +70°C); identical optical/electrical specs and pinout. | Not rated for extended industrial environments; unsuitable for substation or uncooled factory deployments. | Select AFBR-5803Z only for controlled indoor telecom or office LAN applications. |
| AFBR-5803ATZ | Same extended temperature range (–10°C to +85°C) but uses duplex ST connector instead of SC; otherwise identical electrical and optical behavior. | Requires different chassis cutout and panel-mount geometry; incompatible with SC-based infrastructure. | Choose AFBR-5803ATZ when ST connector mechanical interface is mandated by system design or legacy cabling. |
Compared with AFBR-5803Z and AFBR-5803ATZ, the AFBR-5803AZ uniquely combines extended temperature operation with duplex SC receptacle - making it the sole option for SC-based industrial fiber links requiring –10°C to +85°C reliability without mechanical redesign.
Availability
AFBR-5803AZ is available at Aetrix Electronics and suitable for substation automation, factory automation, merging unit interfaces, and media converter bridges requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for AFBR-5803AZ 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 specializing in wired and wireless communications, enterprise storage, and optical interconnect solutions with broad industrial and infrastructure design-in presence.
The AFBR-5803AZ belongs to Broadcom's AFBR-58xxx transceiver family, engineered specifically for cost-sensitive, high-reliability 100 Mb/s fiber links in industrial Ethernet, utility automation, and legacy FDDI/ATM infrastructure.
FAQ
What is the operating temperature range of the AFBR-5803AZ?
The AFBR-5803AZ operates over an extended ambient temperature range of –10°C to +85°C, verified per its recommended operating conditions table in AV02-0606EN. This range corresponds to a case temperature of –10°C to +100°C with adequate airflow, making AFBR-5803AZ suitable for uncooled industrial enclosures and outdoor substation cabinets where thermal management is constrained.
Does the AFBR-5803AZ support both +3.3 V and +5 V supply rails?
Yes, the AFBR-5803AZ supports dual supply operation: 3.135–3.5 V or 4.75–5.25 V DC. Its internal driver and receiver ICs are designed to function correctly across both voltage ranges without configuration changes, and its PECL I/O levels scale accordingly - ensuring seamless integration into mixed-voltage systems without external level translators.
What optical fiber types and distances does the AFBR-5803AZ support?
The AFBR-5803AZ is specified for 2-km multimode fiber links using either 62.5/125 µm (NA = 0.275) or 50/125 µm (NA = 0.20) fiber, meeting FDDI PMD optical power budget requirements. At beginning-of-life, it delivers ≥–19 dBm into 62.5/125 µm fiber, providing sufficient margin for connector loss, splices, and aging - confirmed in Figure 6 of the AFBR-5803AZ datasheet.
How is signal detect functionality implemented in the AFBR-5803AZ?
The AFBR-5803AZ provides a single-ended signal detect (SD) output that asserts high when received optical power exceeds –45 dBm and deasserts when power falls below –31 dBm, with maximum acquisition times of 100 µs (assert) and 350 µs (deassert). This hysteresis prevents false toggling in marginal optical conditions and is fully compliant with FDDI PMD link fault detection timing requirements.
Is the AFBR-5803AZ RoHS compliant and lead-free solder compatible?
Yes, the AFBR-5803AZ is RoHS compliant and qualified for lead-free soldering. Its solder posts feature tin-copper over nickel plating, and electrical pins use pure tin over nickel plating - both rated for peak temperatures up to +260°C for 10 seconds, satisfying IPC/JEDEC J-STD-020 moisture sensitivity and reflow profile requirements.
AFBR-5803AZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Broadcom Limited
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Data Rate:
- 100Mbps
- Wavelength:
- 1300nm
- Applications:
- General Purpose
- Voltage - Supply:
- 3.3V, 5V
- Connector Type:
- SC
- Mounting Type:
- Through Hole
AFBR-5803AZ FAQ
1.How can I place an order for AFBR-5803AZ through Aetrix?
Please submit a Request for Quotation (RFQ) for AFBR-5803AZ 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-5803AZ reliable?
The price and inventory of AFBR-5803AZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AFBR-5803AZ is usually 5 days.
3.What payment methods are accepted for AFBR-5803AZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AFBR-5803AZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AFBR-5803AZ?
AFBR-5803AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AFBR-5803AZ 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-5803AZ?
For technical support, including AFBR-5803AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AFBR-5803AZ requirements.
6.How does Aetrix verify that AFBR-5803AZ is sourced from the original manufacturer or authorized distributors?
All AFBR-5803AZ 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-5803AZ meets industry standards.
7.What is the process for return or replacement of AFBR-5803AZ?
All AFBR-5803AZ units undergo pre-shipment inspection (PSI). If there is an issue with AFBR-5803AZ, 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-5803AZ part is unused and in its original packaging.
Return procedure for AFBR-5803AZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AFBR-5803AZ Tags

-
AFBR-5972EZ
Broadcom Limited

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AFBR-5972BZ
Broadcom Limited
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FTLF8519P3BNL
Coherent
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AFBR-5803Z
Broadcom Limited
-
AFBR-5803TZ
Broadcom Limited
-
FTLF8519P3BTL
Coherent
-
AFBR-5803ATZ
Broadcom Limited
-
AFBR-5803ATQZ
Broadcom Limited

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FTLX8574D3BCV
Coherent

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FTLF8526P3BNL
Coherent

-
FTLF8519F2GCL
Coherent
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FTLF1318P3BTL
Coherent
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