Finisar FTLF8536P4BCL Compatible 25GBASE-SR SFP28 Transceiver
Finisar compatible FTLF8536P4BCL - Key Features
- Compatibility: Finisar
- Media Type: Multi-Mode Fiber (MMF) -OM3/OM4/OM5
- Fiber Count: Duplex
- Connector: Double LC/UPC
- Maximum Distance: 100 m
- Guaranteed Link Budget: 5.3 dB
- Tx Wavelength: 850 nm
- Supported Data Rate: 8.5 Gbps - 25.78 Gbps
- DDM/DOM: Supported
- Forward Error Correction (FEC): Host FEC Supported
- Temperature Range: Standard 0°-70°C
Finisar FTLF8536P4BCL Price
In Stock - Ships Next Business DayFinisar compatible FTLF8536P4BCL Specifications
Form Factor | SFP28 |
Media Type | Multi-Mode Fiber (MMF) -OM3/OM4/OM5 |
Fiber Count | Duplex |
Connector | Double LC/UPC |
Maximum Distance | 100 m |
Guaranteed Link Budget | 5.3 dB |
TX Wavelength | 850 nm |
RX Wavelength | 850 nm |
Supported Data Rate | 8.5 Gbps - 25.78 Gbps |
Supported Ethernet Applications | 10G Ethernet (10.31Gbps), 25G Ethernet (25.78Gbps) |
DDM/DOM | Supported |
Forward Error Correction (FEC) | Host FEC Supported |
Transmitter Type | VSCEL Laser |
Average Launch Power (Min) Each Lane | -5 dBm |
Average Launch Power (Max) Each Lane | 2.4 dBm |
Extinction Ratio (Min) | 3 dB |
Receiver Type | PIN photodiode |
Rx Wavelength Bandwidth | 20 nm |
Average Receiver Sensitivity (Min) Each Lane | -10.3 dBm |
Average Receiver Sensitivity (Max) Each Lane | 2.4 dBm |
Receiver Overload | 2.4 dBm |
Temperature Range | Standard 0°-70°C |
Storage Temperature | -40° to 85°C |
Relative Humidity | 5 to 85% |
Power Consumption (Max) | 0.3 W |
Power | +3.3V single power supply |
Compliance | SFF-8432, CE, Class 1 FDA and IEC60825-1 Laser Safety Compliant, RoHS, SFF-8431, SFF-8472, SFP28 MSA |
Finisar compatible FTLF8536P4BCL Datasheet
v3Complete technical specifications and product details
Finisar compatible FTLF8536P4BCL Description
EdgeOptic's FTLF8536P4BCL compatible is a Finisar-coded dual-rate 10GBASE-SR / 25GBASE-SR SFP28 transceiver that matches the original Finisar (now Coherent Corp) FTLF8536P4BCL specification. The FTLF8536 series supports both 10.3125 Gbps (10GBASE-SR) and 25.78125 Gbps (25GBASE-SR) line rates; the host port configuration determines the Ethernet rate. The module is an SFP28 part per SFF-8402 MSA, not an SFP+ part; legacy references describing it as SFP+ are incorrect.
Optical specs: 850 nm VCSEL transmitter, PIN photodiode receiver, TX power -8.4 to +2.4 dBm, RX sensitivity better than -10.3 dBm, 5.3 dB link budget. Reach is 100 m on OM4, 100 m on OM5, and 70 m on OM3 with an LC/UPC duplex connector. The module is IEEE 802.3by Clause 112 compliant and runs RS-FEC via Clause 91 (RS(528,514)) when the host port negotiates it.
Electrical interface follows SFF-8431 and SFF-8432 for the SFP28 cage. Digital diagnostics are SFF-8472 Rev 12.2 compliant, surfacing per-module temperature, supply voltage, TX bias, TX power, and RX power. Power dissipation is 0.3 W, the module is hot-swappable, and operating temperature range is 0-70 C. RoHS compliant per the original Finisar spec.
The FTLF8536P4BCL is an OEM-supplied transceiver deployed across a wide range of networking equipment where Finisar was the original supplier, including data center switches, server NICs, and converged fabric platforms from Cisco, Dell, and HPE. Finisar merged with II-VI Incorporated in 2019 and II-VI rebranded as Coherent Corp in 2022, so current-generation stock of this part is also marketed under the Coherent Corp name. The FTLF8536P4BCV is the Coherent successor SKU for new deployments. EdgeOptic's FTLF8536P4BCL compatible is coded to match Finisar EEPROM identification for drop-in replacement in existing Finisar-populated slots.
For Finisar-populated slots in Cisco, Dell, or HPE equipment needing the -FC variant, contact our sales team.
Frequently Asked Questions
Is the FTLF8536P4BCL an SFP+ or SFP28 module?
The FTLF8536P4BCL is an SFP28 module, not SFP+. All Finisar and cross-vendor listings identify it as a 25GBASE-SR SFP28 part per SFF-8402 MSA, operating at the 25.78 Gbps line rate defined by IEEE 802.3by. Legacy documents that describe it as SFP+ are incorrect; SFP+ is a 10G form factor.
What is the data rate of the FTLF8536P4BCL?
The FTLF8536P4BCL supports both 10.3125 Gbps (10GBASE-SR) and 25.78125 Gbps (25GBASE-SR) line rates; the FTLF8536 series is dual-rate. The host port configuration selects the Ethernet rate. At 25G, RS-FEC (IEEE 802.3by Clause 91) is typically enabled on the host; at 10G, no host FEC is required. The module does not negotiate rate autonomously.
Has the FTLF8536P4BCL been discontinued by Finisar or Coherent?
Finisar merged into II-VI Incorporated in 2019 and the combined company rebranded as Coherent Corp in 2022. The FTLF8536P4BCL remains available through distribution, and Coherent has introduced the FTLF8536P4BCV as the successor SKU for new deployments. EdgeOptic's compatible is the drop-in replacement for populations that must stay on the original FTLF8536P4BCL part number.
Is the FTLF8536P4BCL-FC suffix variant the same module as the base FTLF8536P4BCL?
The -FC suffix is a Finisar customer-variant code that covers the same optical and electrical specification as the base FTLF8536P4BCL. The 25GBASE-SR optical path, SFP28 cage, DOM implementation, and 100 m OM4 reach are identical. EdgeOptic's FTLF8536P4BCL compatible serves both the base SKU and the -FC variant from the same product page.