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Broadcom Limited AFBR-5803TZ
- Part No.:
- AFBR-5803TZ
- Manufacturer:
- Broadcom Limited
- Category:
- Fiber Optic Transceiver Modules
- Package:
- Datasheet:
-
AFBR-5803TZ.pdf
- Description:
- TXRX OPT 1X9 100MBPS DUPLEX ST
- Quantity:
- Payment:
- Shipping:
Inventory:109
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Product details
Overview
AFBR-5803TZ from Broadcom is a 1300-nm FDDI PMD-compliant fiber optic transceiver in a 1×9 SIP package with duplex SC or ST interface, supporting 100 Mb/s Fast Ethernet (100BASE-FX) and ATM UNI 3.0 interfaces over 2-km multimode fiber. It operates from a single +3.3 V or +5 V supply, features PECL-compatible differential data I/O, and delivers guaranteed optical performance per ISO/IEC 9314-3:1990 and ANSI X3.166–1990.
For engineers reviewing the AFBR-5803TZ datasheet, pinout, applications, or equivalent options, this transceiver is selected for deterministic optical power budget, low aging (<1 dB), FDDI/ATM/Fast Ethernet physical layer compliance, and compatibility with industry-standard 1×9 board footprints and ECL termination schemes.
Technical Context
The AFBR-5803TZ integrates an InGaAsP LED transmitter and InGaAs PIN photodiode receiver, both coupled to custom silicon ICs: a driver IC converts differential PECL inputs into analog LED drive current, while a transimpedance preamplifier and quantizer IC deliver differential PECL data output and single-ended signal detect. Optical subassemblies are housed in a shielded, low-profile 1×9 SIP package with isolated solder posts.
It supports dual supply rails (3.135–3.5 V or 4.75–5.25 V), operates across 0°C to +70°C ambient, and meets MIL-STD-883 Class 2 ESD immunity. Its jitter performance complies with Annex E of FDDI PMD/LCF-PMD standards, and its optical spectral width and rise/fall times satisfy FDDI-defined limits for 1300-nm multimode links.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 100 Mb/s (125 Mbaud signaling rate), compliant with 100BASE-FX, ATM UNI 3.0, and FDDI PMD physical layers. |
| Wavelength | 1300 nm center wavelength, optimized for 62.5/125 µm and 50/125 µm multimode fiber with NA 0.275/0.20. |
| Optical Power (BOL) | –19 dBm avg. (62.5/125 µm), –22.5 dBm avg. (50/125 µm); enables ≥2 km link reach per FDDI PMD standard. |
| Receiver Sensitivity | –31 dBm (signal detect on), –45 dBm (signal detect off); provides robust loss-of-signal detection with ≤100 µs assertion time. |
| Supply Voltage | 3.135–3.5 V or 4.75–5.25 V; single-rail operation eliminates need for dual supplies in legacy or mixed-voltage systems. |
| Interface | Differential PECL I/O (ECL-referenced to VCC), compatible with standard 50 Ω terminations to VCC – 2 V. |
| Operating Temp | 0°C to +70°C ambient; case temperature measurement point defined per Figure 3 for thermal design validation. |
Pinout & Package
The AFBR-5803TZ uses a standardized 1×9 SIP package with 9 electrical pins and two isolated solder posts for mechanical anchoring. Package height complies with duplex SC connector clearance requirements (max 39.12 mm), and footprint matches the multisource "Common Transceiver Footprint" (20.32 mm × 25.4 mm). Solder posts are electrically isolated from circuitry and require no ground connection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 9 | VEE (Ground Reference) | Common emitter reference for PECL I/O; must be connected to system ground plane for signal integrity. |
| 2, 3 | RD+ / RD− (Receiver Data) | Differential PECL output pair; requires 50 Ω termination to VCC – 2 V at receiving PHY. |
| 4 | SD (Signal Detect) | Single-ended PECL output indicating valid optical input (>–31 dBm); used for link status monitoring. |
| 5, 6 | VCC (Power Supply) | Accepts either 3.3 V or 5 V rail; decoupling capacitors (0.1 µF + 10 µF) required per Figure 9. |
| 7, 8 | TD+ / TD− (Transmitter Data) | Differential PECL input pair; driven by PHY with ECL-level signals referenced to VCC. |
Key Features
| Feature | Design Value |
|---|---|
| FDDI PMD Compliance | Meets ISO/IEC 9314-3:1990 and ANSI X3.166–1990 optical specs - enables drop-in use in certified FDDI backbone equipment. |
| Low LED Aging | <1 dB optical power degradation over lifetime (vs. industry-standard 1.5 dB), extending link margin and reducing maintenance cycles. |
| Dual-Voltage Operation | Supports both 3.3 V and 5 V supplies without external level-shifting - simplifies migration from legacy 5 V to modern 3.3 V designs. |
| EMI-Shielded Housing | Internal shields for optical/electrical subassemblies provide >9 dB margin to FCC Class B/CISPR 22B limits - reduces board-level filtering needs. |
| Wave-Solder Compatible | Withstands 260°C lead soldering for 10 sec and aqueous wash processes - supports high-volume automated PCB assembly. |
Applications
| Factory Automation | Substation Automation |
|---|---|
Use Scenario: High-noise industrial environments requiring noise-immune, long-reach communication between PLCs and remote I/O modules over existing multimode fiber plant. IC Role / Device Role / Timing Role: Physical layer transceiver implementing FDDI PMD-compliant 100 Mb/s serial link with deterministic jitter and signal detect for fault isolation. Use Value: Enables reliable 2-km backbone links without repeaters, leveraging installed 62.5/125 µm fiber and meeting IEC 61850-3 EMI immunity requirements. |
Use Scenario: Protection relay interconnection and GOOSE messaging across switchyard fiber infrastructure in utility substations. IC Role / Device Role / Timing Role: Optical interface for IEC 61850-9-2 sampled value transmission and fast trip command relaying at 100 Mb/s. Use Value: Provides <100 µs signal detect assertion and <350 µs deassertion - critical for sub-cycle fault response timing in digital protection schemes. |
| Multimode Fiber Media Converters | Wiring Closet to Desktop Links |
Use Scenario: Converting copper-based Fast Ethernet (100BASE-TX) traffic to fiber for campus backbone extension or EMI-isolated building-to-building links. IC Role / Device Role / Timing Role: Core optical transceiver in compact media converter modules, handling 100BASE-FX encoding/decoding and signal conditioning. Use Value: Delivers full 100BASE-FX compliance with guaranteed optical power budget and RoHS-compliant packaging - simplifies UL/cUL certification. |
Use Scenario: Horizontal cabling from telecom closets to end-user workstations using existing 50/125 µm multimode fiber drops. IC Role / Device Role / Timing Role: Low-cost 1×9 transceiver enabling cost-effective 100 Mb/s desktop connectivity where copper distance limits apply. Use Value: Achieves 2-km reach on 50/125 µm fiber with –22.5 dBm BOL output - supports longer runs than typical 100BASE-FX SFP modules. |
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 | Identical optical/electrical specs and pinout; differs only in temperature grade (0°C to +70°C same as AFBR-5803TZ). | No functional difference; AFBR-5803Z is the base commercial-grade variant without 'T' suffix. | Select AFBR-5803Z if exact same performance and qualification are acceptable and part marking preference excludes 'T'. |
| AFBR-5803AZ | Extended temperature range (–10°C to +85°C); identical optical specs, pinout, and electrical interface. | Suitable for harsher environments (e.g., outdoor enclosures, unconditioned substations) where ambient exceeds +70°C. | Choose AFBR-5803AZ when operating temperature exceeds +70°C; otherwise AFBR-5803TZ offers optimal cost/performance balance. |
Compared with AFBR-5803Z and AFBR-5803AZ, the AFBR-5803TZ provides identical FDDI/ATM/Fast Ethernet compliance and 1×9 footprint but is specifically qualified for 0°C to +70°C operation - making it the preferred choice for indoor telecom closets, factory control rooms, and standard commercial embedded systems where extended temperature is unnecessary.
Availability
AFBR-5803TZ is available at Aetrix Electronics and suitable for factory automation, substation automation, and multimode fiber media converters requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for AFBR-5803TZ 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 and manufacturing high-performance connectivity, networking, and broadband solutions for enterprise, industrial, and communications infrastructure.
The AFBR-5803TZ belongs to Broadcom's AFBR-58xxx transceiver family, engineered specifically for cost-sensitive, standards-compliant 100 Mb/s fiber links in FDDI, Fast Ethernet, and ATM systems - emphasizing interoperability, low EMI, and long-term reliability in industrial fiber networks.
FAQ
What is the maximum supported fiber distance for AFBR-5803TZ?
The AFBR-5803TZ is specified for 2-km multimode fiber backbone links per FDDI PMD standard (ISO/IEC 9314-3:1990). With 62.5/125 µm fiber (NA 0.275), it achieves this reach using –19 dBm BOL output and –31 dBm receiver sensitivity. Link length may vary with fiber quality, splices, and connectors - always validate against actual optical power budget calculations.
Does AFBR-5803TZ support both 3.3 V and 5 V operation simultaneously?
No, AFBR-5803TZ operates from a single supply rail: either 3.135–3.5 V or 4.75–5.25 V. Both voltage ranges are supported, but the device must be powered from one rail only. The internal driver and receiver ICs auto-adapt to the selected VCC level, maintaining PECL-compatible output swing and input thresholds.
What is the signal detect (SD) threshold behavior of AFBR-5803TZ?
The AFBR-5803TZ asserts SD (high) when input optical power exceeds –31 dBm and deasserts SD (low) when power falls below –45 dBm. Hysteresis ensures stable operation: SD turns on within ≤100 µs and off within ≤350 µs. This dual-threshold design prevents flickering during marginal link conditions and supports robust link-up/link-down detection.
Can AFBR-5803TZ be used in 100BASE-FX systems without modification?
Yes, AFBR-5803TZ is fully compliant with IEEE 802.3u 100BASE-FX physical layer requirements because it implements the FDDI PMD standard - which the Fast Ethernet Alliance explicitly adopts for 100BASE-FX. No firmware, configuration, or external components are needed for plug-and-play integration into standard 100BASE-FX PHY designs.
Is AFBR-5803TZ RoHS compliant and lead-free solder compatible?
Yes, AFBR-5803TZ 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. It withstands peak temperatures up to 260°C for 10 seconds per J-STD-020, supporting standard wave and reflow processes.
AFBR-5803TZ 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:
- ST
- Mounting Type:
- Through Hole
AFBR-5803TZ FAQ
1.How can I place an order for AFBR-5803TZ through Aetrix?
Please submit a Request for Quotation (RFQ) for AFBR-5803TZ 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-5803TZ reliable?
The price and inventory of AFBR-5803TZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AFBR-5803TZ is usually 5 days.
3.What payment methods are accepted for AFBR-5803TZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AFBR-5803TZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AFBR-5803TZ?
AFBR-5803TZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AFBR-5803TZ 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-5803TZ?
For technical support, including AFBR-5803TZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AFBR-5803TZ requirements.
6.How does Aetrix verify that AFBR-5803TZ is sourced from the original manufacturer or authorized distributors?
All AFBR-5803TZ 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-5803TZ meets industry standards.
7.What is the process for return or replacement of AFBR-5803TZ?
All AFBR-5803TZ units undergo pre-shipment inspection (PSI). If there is an issue with AFBR-5803TZ, 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-5803TZ part is unused and in its original packaging.
Return procedure for AFBR-5803TZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AFBR-5803TZ Tags
-
AFBR-5972EZ
Broadcom Limited
-
AFBR-5972BZ
Broadcom Limited
-
FTLF8519P3BNL
Coherent
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AFBR-5803Z
Broadcom Limited
-
AFBR-5803TZ
Broadcom Limited
-
FTLF8519P3BTL
Coherent
-
AFBR-5803ATZ
Broadcom Limited
-
AFBR-5803ATQZ
Broadcom Limited
-
FTLX8574D3BCV
Coherent
-
FTLF8526P3BNL
Coherent
-
FTLF8519F2GCL
Coherent
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FTLF1318P3BTL
Coherent
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