Finisar FTLF8536P5PCL Compatible 25GBASE-SR SFP28 Pull-Tab Latch for 25G SFP28 Host Platforms

EdgeOptic's FTLF8536P5PCL compatible is a Finisar-coded 25GBASE-SR SFP28 transceiver built as a direct replacement for the Coherent / Finisar FTLF8536P5PCL. It ships with Finisar EEPROM vendor and part-number strings so 25G SFP28 host platforms that read the FTLF8536P5PCL ordering code on optic insertion identify the module as a native Finisar part. The PCL housing carries a pull-tab clasp latch in place of the bail-clasp wire used on the FTLF8536P5BCL sibling, so extraction is tool-free and the latch profile stays inside the cage envelope on dense patch panels. Link-up, receive-optical-signal and DOM telemetry surface on the standard optic-inventory path through the host switch or NIC management interface.

Optical behavior is 25GBASE-SR per IEEE 802.3by Clause 112 over duplex multi-mode fiber: 100m on OM4, 70m on OM3. Line signaling rate is 25.78125 Gbd, single-rate, per IEEE 802.3by Clause 112; the 'L' suffix in the FTLF8536P5PCL ordering code denotes single-rate 25GbE operation, so the module does not carry the 10GBASE-SR backward-rate path that the FTLF8536P5BCV variant supports. Transmit power is -8.4 to +2.4 dBm, receive sensitivity -10.3 dBm, link budget 5.3 dB per IEEE 802.3by Clause 112 Table 112-3 (RS-FEC per Clause 108 operates at the PCS layer and does not alter the optical power budget). Wavelength 850nm VCSEL, duplex LC/UPC, DOM per SFF-8472, 0.3W typical power consumption per the Coherent FTLF8536P5xyz datasheet P5 power class. Operating case temperature is 0 to 70 degrees Celsius commercial.

FTLF8536P5PCL sits in the Coherent FTLF8536P5xyz P5-generation SFP28 product line, where the suffix encodes the housing and rate variant: PCL is Pull-tab Clasp Latch with single-rate 25GbE, BCL is Bail-Clasp Latch in the same FTLF8536P5 product line, BCV is Bail-Clasp Latch with the dual-rate 10G/25G versatile path, and BNV is the extended-temperature variant. PCL and BCL share identical VCSEL, photodiode, FEC behavior and link budget; the only physical difference is the latch mechanism. Operators selecting PCL over BCL typically do so for high-density patch environments where bail-latch wires risk snagging adjacent cables on insertion or removal, or where blind-mate cable-management trays expect a flush pull-tab profile inside the cage.

EdgeOptic's compatible is built to the SFP28 MSA (SFF-8402 mechanical and high-speed electrical, SFF-8432 management interface, SFF-8472 diagnostics) so any 25G SFP28 host that reads the Finisar EEPROM vendor and part-number strings on its optic-inventory path identifies the module as a native FTLF8536P5PCL on insertion. Coherent does not publish a per-platform certification list for FTLF8536P5PCL, so platform scope is stated at IEEE 802.3by Clause 112-compliant 25G SFP28 host level. Operators replacing a deployed FTLF8536P5PCL or migrating a deployment from FTLF8536P5BCL on the same host can request the exact EEPROM vendor and PN strings from EdgeOptic for verification before swap-out.

On FEC, 25G FEC mode is configured at the MAC layer on each link partner and the optical path is agnostic to the host FEC profile. RS-FEC per IEEE 802.3by Clause 108 is the default path for 25GBASE-SR and is the mode FTLF8536P5PCL is specified against; Clause 74 Fire Code FEC (BASE-R) and no-FEC operation are supported at the optical layer where both link partners are configured for that FEC profile. DOM registers for transmit power, receive power, supply voltage, laser bias current and module case temperature are accessible through standard SFF-8472 reads on the host transceiver-diagnostics interface and on any EEPROM-aware link partner. Every unit is factory-tested to the 25GBASE-SR optical specification per IEEE 802.3by Clause 112 before dispatch.

For volume pricing, Finisar EEPROM vendor and part-number strings for pre-deployment verification on a specific 25G SFP28 host platform, or confirmation of the FTLF8536P5PCL pull-tab profile against a target patch-panel cage geometry, contact our sales team and we will respond within one business day.