Broadcom Limited AFBR-59E4APZ-LH
- Part No.:
- AFBR-59E4APZ-LH
- Manufacturer:
- Broadcom Limited
- Category:
- Fiber Optic Transceiver Modules
- Package:
- Datasheet:
-
AFBR-59E4APZ-LH.pdf
- Description:
- TXRX MULTIMODE SFF FE LOW POWER
- Quantity:
- Payment:

- Shipping:

Inventory:4,054
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Product details
Overview
AFBR-59E4APZ-LH from Broadcom is a multimode fiber Fast Ethernet transceiver using a 1310-nm LED transmitter and InGaAs PIN photodiode receiver, operating at 125 MBd with differential LVPECL I/O, single +3.3 V supply, and –40 °C to +85 °C temperature range for LC-connector-based 100BASE-FX systems.
For engineers reviewing the AFBR-59E4APZ-LH datasheet, pinout, applications, or equivalent options, this transceiver supports AC-coupled LVPECL interface design, optical power budget analysis for 62.5/125 μm and 50/125 μm MMF links, ESD Class 2 compliance, and board-level decoupling per Figure 3 of the official datasheet.
Technical Context
The AFBR-59E4APZ-LH implements a full-duplex 100BASE-FX physical layer transceiver with separate transmitter and receiver subassemblies housed in a 2×5 DIP package. Its transmitter uses an integrated LVPECL-to-LED driver IC; the receiver integrates an InGaAs PIN photodiode, transimpedance preamplifier, and quantizer IC to deliver LVPECL-compatible RD+/RD– and single-ended SD outputs.
Optical performance is specified for both 62.5/125 μm (NA=0.275) and 50/125 μm (NA=0.20) multimode fiber, with input sensitivity down to –31 dBm and signal detect hysteresis of 0.5–1.9 dB. It meets IEEE 802.3u 100BASE-FX requirements and provides 10 dB EMI margin against FCC Class B and CISPR 22 limits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Signaling Rate | 125 MBd - matches 100BASE-FX 4B/5B encoding requirement |
| Supply Voltage | +3.0 V to +3.6 V - compatible with standard 3.3 V rail with ±10% tolerance |
| Operating Temperature | –40 °C to +85 °C - supports industrial-grade embedded and telecom equipment |
| Optical Input Sensitivity | –31 dBm - enables ≥2 km link reach on 62.5/125 μm MMF at BER ≤1×10⁻¹⁰ |
| Signal Detect Hysteresis | 0.5–1.9 dB - prevents false toggling during marginal optical input conditions |
| ESD Rating (Pins) | JESD22-A114 Class 2 (2000–3999 V) - requires standard ESD handling before PCB mounting |
| Output Optical Power | –23.0 to –14.0 dBm (62.5/125 μm) - ensures sufficient margin for connector/splice losses |
Pinout & Package
The AFBR-59E4APZ-LH is housed in a 2×5 DIP-style package compliant with multisource SFF specifications, measuring 17.79 mm × 13.59 mm × 10.16 mm (L×W×H), with LC fiber connector interface and two isolated solder posts for mechanical anchoring to chassis ground.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Receiver Signal Ground (VEE RX) | Direct connection to receiver ground plane; critical for low-noise analog front-end return path |
| Pin 2 | Receiver Power Supply (VCC RX) | +3.3 V supply for receiver ICs; requires local 0.1 μF + 1 μF decoupling per datasheet Figure 3 |
| Pin 3 | Signal Detect (SD) | LVPECL-compatible single-ended output indicating valid optical input (>–33 dBm) |
| Pin 4 | Receiver Data Out Bar (RD–) | AC-coupled LVPECL differential output; must be terminated with 100 Ω differential load |
| Pin 5 | Receiver Data Out (RD+) | AC-coupled LVPECL differential output; paired with Pin 4 for noise-immune data recovery |
| Pin 6 | Transmitter Power Supply (VCC TX) | +3.3 V supply for LED driver IC; separate filtering from VCC RX recommended |
| Pin 7 | Transmitter Signal Ground (VEE TX) | Isolated ground reference for transmitter section to minimize crosstalk |
| Pin 8 | NC | No internal connection; must remain unconnected on PCB |
| Pin 9 | Transmitter Data In (TD+) | AC-coupled LVPECL differential input; accepts 125 MBd data from SerDes or PHY |
| Pin 10 | Transmitter Data In Bar (TD–) | AC-coupled LVPECL differential input; paired with Pin 9 for robust high-speed signaling |
Key Features
| Feature | Design Value |
|---|---|
| 1310-nm LED Transmitter | Enables cost-effective 100BASE-FX operation over legacy multimode fiber without laser safety constraints |
| InGaAs PIN Photodiode Receiver | Delivers –31 dBm sensitivity and <2.2 ns electrical rise/fall time for reliable 125 MBd recovery |
| LVPECL I/O Interface | Provides industry-standard AC-coupled differential signaling compatible with common SerDes and PHY ICs |
| Integrated EMI Shielding | Internal shielding between optical/electrical subassemblies ensures >10 V/m immunity up to 1 GHz |
| RoHS & Regulatory Compliance | Fully compliant with FCC Class B, CISPR 22, EN 60825-1, UL Component Recognition (E173874), and RoHS Directive 2011/65/EU |
Applications
| Industrial Ethernet Switches | Telecom Access Equipment |
|---|---|
|
Use Scenario: 24-port managed switch deployed in factory automation cabinets with ambient temperatures up to +75 °C. IC Role / Device Role / Timing Role: Physical layer transceiver converting electrical LVPECL signals to optical 1310-nm light for multimode fiber uplinks. Use Value: Enables 100 Mbps full-duplex connectivity over existing 62.5/125 μm OM1 cabling with –40 °C to +85 °C operational margin. |
Use Scenario: DSLAM or ONU unit requiring fiber uplink to central office via 50/125 μm OM2 backbone. IC Role / Device Role / Timing Role: 100BASE-FX transceiver providing deterministic latency and jitter-controlled data transmission. Use Value: Delivers <1.0 ns DCD and <0.76 ns RJ at transmitter, ensuring bit error rate ≤1×10⁻¹⁰ over 2 km links. |
| Medical Imaging Network Nodes | Transportation Control Systems |
|
Use Scenario: DICOM image server connecting to PACS storage via fiber to avoid EMI from MRI equipment. IC Role / Device Role / Timing Role: EMI-hardened optical interface isolating sensitive imaging electronics from noisy environments. Use Value: Internal shielding and 10 dB EMI margin meet EN 60601-1 immunity requirements for medical devices. |
Use Scenario: Rail signaling controller communicating with trackside sensors over 1 km of outdoor multimode fiber. IC Role / Device Role / Timing Role: Ruggedized transceiver supporting wide temperature cycling and vibration-prone mounting. Use Value: JESD22-A114 Class 2 ESD rating and –40 °C start-up capability ensure reliability in unconditioned enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Fast Ethernet transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AFBR-59E4APZ | No "-LH" suffix; identical electrical/optical specs but lacks explicit ESD Class 2 documentation in public datasheet | Suitable for controlled lab or non-industrial environments where ESD exposure is minimized | Select AFBR-59E4APZ-LH when JESD22-A114 Class 2 compliance is required for production deployment |
| AFBR-59E5APZ-LH | Same package and interface, but optimized for 50/125 μm fiber with higher output power (–22.0 to –13.0 dBm) | Better suited for longer-reach 50/125 μm links (>1.5 km); slightly reduced sensitivity on 62.5/125 μm | Choose AFBR-59E5APZ-LH only when primary fiber plant is OM2/OM3 and link budget demands higher Tx power |
Compared with AFBR-59E4APZ and AFBR-59E5APZ-LH, the AFBR-59E4APZ-LH uniquely guarantees JESD22-A114 Class 2 ESD robustness while maintaining balanced optical budget across both 62.5/125 μm and 50/125 μm fiber types-making it the default choice for mixed-fiber industrial deployments.
Availability
AFBR-59E4APZ-LH is available at Aetrix Electronics and suitable for industrial Ethernet switches, telecom access nodes, medical imaging networks, and transportation control systems requiring stable component supply and long-term lifecycle support.
Supply support for AFBR-59E4APZ-LH 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 connectivity, networking, and infrastructure solutions with emphasis on optical, wireless, and wired communications.
The AFBR-59E4APZ-LH belongs to Broadcom's Small Form-Factor transceiver product line, engineered specifically for cost-sensitive, high-reliability Fast Ethernet over multimode fiber in industrial and telecom edge applications.
FAQ
What is the maximum supported fiber distance for AFBR-59E4APZ-LH on 62.5/125 μm multimode fiber?
The AFBR-59E4APZ-LH supports up to 2 km on 62.5/125 μm OM1 fiber under standard 100BASE-FX conditions (BER ≤1×10⁻¹⁰), based on its –31 dBm receiver sensitivity and –23.0 to –14.0 dBm output power range. Link budget calculations must include connector, splice, and aging losses; Broadcom specifies <1 dB LED aging over mission life.
Does AFBR-59E4APZ-LH require external AC coupling capacitors on its LVPECL I/O lines?
Yes, AFBR-59E4APZ-LH requires external 100 nF AC coupling capacitors on all four LVPECL data lines (TD+, TD–, RD+, RD–) as shown in Figure 2 of the datasheet. The transceiver itself does not integrate these capacitors, and omission will disrupt DC biasing and cause signal integrity failure.
Can AFBR-59E4APZ-LH operate with a 2.5 V supply instead of 3.3 V?
No, AFBR-59E4APZ-LH is specified only for 3.0–3.6 V operation per its Recommended Operating Conditions table. A 2.5 V supply falls outside absolute maximum ratings and will prevent proper LED drive current and LVPECL output voltage swing, resulting in functional failure.
How is the signal detect (SD) output of AFBR-59E4APZ-LH electrically interfaced?
The AFBR-59E4APZ-LH SD output is a single-ended LVPECL signal with VOH = Vdd – 0.88 V and VOL = Vdd – 1.81 V (measured into 10 kΩ to ground). It asserts high when optical input exceeds –33 dBm and deasserts low below –45 dBm, with 0.5–1.9 dB hysteresis to prevent chatter near threshold.
Is AFBR-59E4APZ-LH compatible with SFP or SFP+ host interfaces?
No, AFBR-59E4APZ-LH uses a 2×5 DIP footprint and LC connector, not the SFP mechanical or electrical interface. It is designed for direct PCB mounting with discrete LVPECL routing-not hot-pluggable modules. Integration requires custom board layout per Figure 5 footprint and termination per Figure 2.
AFBR-59E4APZ-LH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Broadcom Limited
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Data Rate:
- 125MBd
- Wavelength:
- 1308nm
- Applications:
- Ethernet
- Voltage - Supply:
- 3V ~ 3.6V
- Connector Type:
- LC
- Mounting Type:
- Pluggable, SFP
AFBR-59E4APZ-LH FAQ
1.How can I place an order for AFBR-59E4APZ-LH through Aetrix?
Please submit a Request for Quotation (RFQ) for AFBR-59E4APZ-LH 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-59E4APZ-LH reliable?
The price and inventory of AFBR-59E4APZ-LH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AFBR-59E4APZ-LH is usually 5 days.
3.What payment methods are accepted for AFBR-59E4APZ-LH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AFBR-59E4APZ-LH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AFBR-59E4APZ-LH?
AFBR-59E4APZ-LH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AFBR-59E4APZ-LH 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-59E4APZ-LH?
For technical support, including AFBR-59E4APZ-LH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AFBR-59E4APZ-LH requirements.
6.How does Aetrix verify that AFBR-59E4APZ-LH is sourced from the original manufacturer or authorized distributors?
All AFBR-59E4APZ-LH 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-59E4APZ-LH meets industry standards.
7.What is the process for return or replacement of AFBR-59E4APZ-LH?
All AFBR-59E4APZ-LH units undergo pre-shipment inspection (PSI). If there is an issue with AFBR-59E4APZ-LH, 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-59E4APZ-LH part is unused and in its original packaging.
Return procedure for AFBR-59E4APZ-LH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AFBR-59E4APZ-LH Tags

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