Finisar FTLF8536P5BCV Compatible 10G/25G Dual-Rate SFP28 Transceiver
Finisar compatible FTLF8536P5BCV - 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 FTLF8536P5BCV Price
SKU:25G-SFP28-100-MS
In Stock - Ships Next Business DayFinisar compatible FTLF8536P5BCV 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 FTLF8536P5BCV Datasheet
v3Complete technical specifications and product details
Finisar compatible FTLF8536P5BCV Description
EdgeOptic's FTLF8536P5BCV compatible is a Finisar-coded dual-rate 10GBASE-SR / 25GBASE-SR SFP28 transceiver that matches the original Finisar (now Coherent Corp) FTLF8536P5BCV specification. The BCV suffix is what separates this part from the single-rate BCL sibling: the EEPROM carries both 10G and 25G rate support, so the module negotiates at whichever Ethernet rate the host port is configured for. Line rates are 10.3125 Gbps for 10GBASE-SR and 25.78125 Gbps for 25GBASE-SR, within the 8.5 - 28.1 Gbps SerDes operating range.
Optical path is identical to the P5BCL: 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, LC/UPC duplex connector. Reach is 100 m on OM4, 100 m on OM5, and 70 m on OM3. At 25GBASE-SR the module runs under IEEE 802.3by Clause 112 with RS-FEC via Clause 91 (RS(528,514)) when the host port negotiates it. At 10GBASE-SR the module runs at 10.3125 Gbps with no host FEC required.
Electrical interface is SFP28 per SFF-8402 MSA, with SFF-8431 / SFF-8432 for the cage. Digital diagnostics are SFF-8472 Rev 12.2 compliant, exposing per-module temperature, supply voltage, TX bias, TX power, and RX power. Power dissipation is 0.3 W, the module is hot-swappable, operating temperature range is 0-70 C, and the part is RoHS compliant per the original Finisar specification.
Lenovo ThinkSystem 4TC7A88638 is Lenovo's dual-rate 10G/25G SR SFP28 transceiver, branded as a Finisar part. The FTLF8536P5BCV matches that functional specification: P5-generation dual-rate 10GBASE-SR / 25GBASE-SR over 850 nm MMF with a 100 m OM4 reach. EdgeOptic's FTLF8536P5BCV compatible is a functional match for Lenovo 4TC7A88638 populations, not an EEPROM-exact drop-in unless the target slot accepts the standard Finisar P5BCV identity. The module also ships into multi-vendor IEEE 802.3by switch environments where a mixed 10G and 25G port policy is enforced at the host. Finisar merged with II-VI Incorporated in 2019 and II-VI rebranded as Coherent Corp in 2022, so the same transceiver is also listed under Coherent Finisar branding in recent distribution channels. EdgeOptic's BCV compatible is coded to the Finisar EEPROM profile and presents as a dual-rate part to the host - no forced 25G single-rate fallback.
For mixed 10G/25G slot policies where the FTLF8536P5BCV or the FTLF8536P5BCVFTN pull-tab variant is on the order line, or where Lenovo 4TC7A88638 is the stocked OEM code and a functional-match compatible is acceptable, contact our sales team.
Frequently Asked Questions
Does the FTLF8536P5BCV support both 10G and 25G, or is it 25G-only like the BCL?
The BCV suffix is the dual-rate designation. The FTLF8536P5BCV negotiates at 10GBASE-SR (10.3125 Gbps) or 25GBASE-SR (25.78125 Gbps) based on host-port configuration. That is the distinction from the BCL suffix in the original Finisar nomenclature, where BCL was positioned as the single-rate 25G part. In the field some vendor databases list both suffixes as dual-rate for the P5 generation; the BCV is the one Lenovo qualified under 4TC7A88638 specifically as a dual-rate module.
Can the FTLF8536P5BCV drop into a 25G-only port where an FTLF8536P5BCL was originally installed?
Yes. At 25GBASE-SR the BCV and BCL share the same optical path (850 nm VCSEL, 100 m OM4, 5.3 dB budget) and the same SFP28 electrical. The host negotiates at 25G; the dual-rate EEPROM on the BCV does not force a 10G fallback. The only caveat is host-side OEM validation - if the platform only accepts the exact BCL EEPROM signature, the EdgeOptic BCV compatible can be coded to the target host during fulfillment.
The FTLF8536P5BCV ships as Lenovo ThinkSystem 4TC7A88638 - is this a Finisar OEM build, or a separate module?
Lenovo 4TC7A88638 is Lenovo's ThinkSystem Dual Rate 10G/25G SR SFP28 Transceiver, published on Lenovo's product page as a Finisar part. Lenovo does not publicly name the exact Finisar OEM P/N underneath the 4TC7A88638 label, so EdgeOptic positions the FTLF8536P5BCV compatible as a functional-spec match for the 4TC7A88638 use case: dual-rate P5 generation over 850 nm MMF, 100 m OM4 reach. If the target slot enforces a specific EEPROM variant, confirm the exact Finisar identity the host expects before ordering.
What is the FTLF8536P5BCVFTN variant seen in some search results?
The FTN suffix is a Finisar mechanical-housing designator, most commonly a pull-tab release in place of the standard bail-latch. Optical specifications (wavelength, reach, budget, rates) are unchanged. EdgeOptic's FTLF8536P5BCV compatible covers both the bail-latch and pull-tab mechanical variants from the same SKU.