- Home
- Optical Transceivers
- Finisar (Coherent)
- 25G
- FTLF8536W4BTL
Actual product photos
available on request
To keep listings accurate, we share real photos of the exact FTLF8536W4BTL stock you will receive, including the label, serial number and packaging.
Request photos from our teamPhotos are usually shared within working hours on WhatsApp or email.
Finisar FTLF8536W4BTL 25G SR SFP28 850nm 100m
25 Gb/s 25G SR / CPRI-eCPRI wireless, single-rate SFP28 transceiver, 850nm, up to 100m (OM4), industrial temperature.
- Manufacturer
- Coherent Corp. (formerly Finisar / II-VI)
- Mfr part number
- FTLF8536W4BTL
- Family
- FTLF8536W4
- Category
- Fiber optic transceiver modules
- Datasheet
- FTLF8536W4BTL datasheet (PDF)
FTLF8536W4BTL specifications
| Attribute | Value |
|---|---|
| Manufacturer | Coherent Corp. (Finisar) |
| Manufacturer part number | FTLF8536W4BTL |
| Product family | FTLF8536W4 |
| Form factor | SFP28 |
| Standards / application | IEEE 802.3by; SFF-8472 Rev 12.2b; SFF-8402g; SFF-8432a; SFF-8431 Rev 4.1c |
| Data rate | 24.33–25.78 Gb/s; ≤10.3 Gb/s supported |
| Wavelength | 840–860 nm |
| Laser | 850 nm oxide VCSEL |
| Receiver | PIN |
| Reach | 100 m OM4; 70 m OM3; 20 m OM2 |
| Connector | Duplex LC |
| Tx output power | −8.4 to +2.4 dBm avg; OMA −6.4 to +3 dBm |
| Rx sensitivity | −5.2 dBm @25.78G |
| Rx overload / max input | +3 dBm (avg receive range −10.3 to +3 dBm) |
| Extinction ratio | ≥ 2 dB |
| Supply voltage | 3.3 V (3.15–3.46 V) |
| Power dissipation | 1.2 W max (290 mA) |
| Operating temperature | Industrial |
| Diagnostics | SFF-8472 digital diagnostics, 2-wire |
| Compliance | RoHS 2011/65/EU |
| Lifecycle | Ask for availability |
Optical and electrical values are from the Finisar / Coherent family datasheet; temperature grade is per part number. Confirm critical values with us before ordering.
About the Finisar FTLF8536W4BTL
The Finisar FTLF8536W4BTL (now a Coherent Corp. product, formerly II-VI) is a SFP28 25G SR / CPRI-eCPRI wireless, single-rate optical transceiver for 25 Gb/s links at 850nm over MMF, with reach up to 100m (OM4). It is an industrial-temperature part. It belongs to Finisar's FTLF8536W4 family, which has 2 orderable variants that differ by temperature grade, latch, receiver build or wavelength channel. Typical uses: 25G Ethernet server and leaf links, 5G fronthaul (eCPRI) and 10G-to-25G upgrades.
- Up to 25.78 Gb/s bi-directional data links
- 850nm Oxide VCSEL laser transmitter
- Duplex LC connector
- Built-in digital diagnostic functions
- Hot-pluggable SFP+ footprint
- −40 to 85 °C industrial temperature
FTLF8536W4BTL: frequently asked questions
What is the Finisar FTLF8536W4BTL?
The FTLF8536W4BTL is a Finisar SFP28 transceiver for 25G SR / CPRI-eCPRI wireless, single-rate at 25 Gb/s. Finisar is now part of Coherent Corp. (formerly II-VI), and the part number is unchanged. It is used for 25G Ethernet server and leaf links, 5G fronthaul (eCPRI) and 10G-to-25G upgrades.
What is the maximum distance of the FTLF8536W4BTL?
The FTLF8536W4BTL is specified for up to 100m (OM4) over MMF. Long-reach optics may need an attenuator on short links; we can advise based on your link loss.
What is the optical power budget of the FTLF8536W4BTL?
Per the Finisar family datasheet, the FTLF8536W4BTL transmits −8.4 to +2.4 dBm avg; OMA −6.4 to +3 dBm and has a receiver sensitivity of −5.2 dBm @25.78G. Maximum receiver input is +3 dBm (avg receive range −10.3 to +3 dBm).
Does the FTLF8536W4BTL support DDM / digital diagnostics?
Yes. SFF-8472 digital diagnostics, 2-wire. Your switch can read live temperature, voltage, laser bias and Tx/Rx power.
Which fiber and connector does the FTLF8536W4BTL use?
The FTLF8536W4BTL works at 850nm over MMF. Both ends of a link must use the same optical standard.
Will the FTLF8536W4BTL work in my Cisco, Juniper, Arista or HPE switch?
The FTLF8536W4BTL follows the SFP28 MSA, so it fits any matching port. It carries Finisar's own EEPROM programming; switches that check the module vendor may need a configuration setting or a vendor-branded optic. Send us your switch model and we confirm before dispatch.
FTLF8536W4BTL vs FTLF8536W4BTV: what is the difference?
Both are in Finisar's FTLF8536W4 family. They differ in build / application (25G SR / CPRI-eCPRI wireless, single-rate vs 25G SR/10G SR / eCPRI wireless, dual-rate). Pick the variant that matches your temperature, latch and wavelength needs.
What temperature range is the FTLF8536W4BTL rated for?
The FTLF8536W4BTL is an industrial-temperature part. Industrial grade suits outdoor cabinets, telecom huts and plant floors.
What does the FTLF8536W4BTL part number mean?
The FTLF prefix marks Finisar's SFP / SFP28 / SFP56 family (incl. Fibre Channel). The I letter in the suffix usually marks the industrial temperature grade. The remaining characters identify the optical design and build variant.
Is your FTLF8536W4BTL genuine Finisar?
Yes. Next Gen Networks supplies original Finisar / Coherent modules, not third-party lookalikes or grey-market stock, and shares serial numbers on request.
What is the FTLF8536W4BTL price in India and how do I order?
The Finisar FTLF8536W4BTL price in India depends on quantity, delivery city and current stock. Next Gen Networks supplies it with a GST invoice (input tax credit ready) and pan-India dispatch from New Delhi. Send the part number, quantity and delivery city on WhatsApp +91-7827955775 or email Sales@nextgennetworks.in for a GST quote.
What power does the FTLF8536W4BTL need?
It runs from 3.3 V (3.15–3.46 V) with power dissipation of 1.2 W max (290 mA).
Documents
NextGen datasheetPDF · specs, FAQ & buying guideManufacturer datasheet
Finisar / Coherent family datasheet
Related Finisar parts
FTLF8536W4BTV25G SR/10G SR / eCPRI wireless, dual-rate, 100m (OM4)FTLF8536P5BCL25GBASE-SR/10G SR-Lite/eCPRI, 100m (OM4)FTLF8538P5BCL25GE low-latency SR single-rate, up to 100m OM4 w/ RS-FECFTLF8540P4BCV25G eSR/SR dual-rate, 300m (OM4)FTLF8536P4BCL25GBASE-SR single-rate 0-70C bail, 100m (OM4)FTLF1436W5BTV25GE LR/10G LR, eCPRI 24.33G, 10kmGovernment, PSU and enterprise orders welcome. GST invoice and pan-India delivery.
Talk to Sales