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
- Average 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 |
Average 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 25GBASE-SR version of the EdgeOptic 25G-SFP28-100 multi-vendor 25GBASE-SR SFP28 transceiver. The module matches the original Finisar (now Coherent Corp) FTLF8536P4BCL specification: a 25.78 Gbps short-wavelength SFP28 module per SFF-8402 MSA. The FTLF8536P4BCL is an SFP28 part, not an SFP+ part; legacy distributor descriptions that call it SFP+ predate the SFP28 MSA designation and are inaccurate.
Optical specs: 850 nm VCSEL transmitter, PIN photodiode receiver, TX power −5 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 operates at 25.78 Gbps per IEEE 802.3by Clause 112. RS-FEC per Clause 91 (RS(528,514)) is supported and enabled by the host port when 25GBASE-SR is negotiated.
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 the operating temperature range is 0 to 70 C commercial. RoHS compliant per the original Finisar spec.
The FTLF8536P4BCL was an OEM-supplied transceiver across data center switches, server NICs, and converged fabric platforms. Finisar merged with II-VI Incorporated in 2019; II-VI 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 FTLF8536P4BCL compatible is coded to match the original Finisar EEPROM identification for drop-in replacement in existing Finisar-populated slots.
For Finisar-populated slots needing the -FC customer-variant suffix or bulk requirements across multi-vendor populations, contact our sales team. Ships next business day from EU stock with a lifetime warranty. Backed by 15+ years of EdgeOptic compatibility engineering across vendor optical platforms.
Frequently Asked Questions
Is the FTLF8536P4BCL an SFP+ or SFP28 module?
The FTLF8536P4BCL is an SFP28 module per SFF-8402 MSA, operating at the 25.78 Gbps line rate defined by IEEE 802.3by. Some legacy distributor listings describe it as 'SFP+' because the SFP28 form factor reuses the SFP+ mechanical envelope, but SFP+ is a 10G specification and does not match this module's electrical and optical rating.
Has the FTLF8536P4BCL been discontinued by Finisar or Coherent?
Finisar merged into II-VI Incorporated in the late 2010s and the combined company later rebranded as Coherent Corp; verify the current Coherent product status against the vendor's catalog for new deployments. The FTLF8536P4BCL remains available through distribution, and Coherent 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 understood to be a Finisar customer-variant code that covers the same 25GBASE-SR optical specification as the base FTLF8536P4BCL (SFP28 cage, SFF-8472 DOM, 100 m OM4 reach); a primary Coherent variant decoder is the authoritative source. EdgeOptic's FTLF8536P4BCL compatible is intended for both the base SKU and the -FC variant from the same product page. Verify with Coherent or our sales team before treating them as fully interchangeable in your specific platform.