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Finisar FTF3436W5BNV31 25G LR SFP28 1311nm CWDM 10km
25 Gb/s 25G LR / CPRI-eCPRI CWDM (-20 to 85C) SFP28 transceiver, 1311nm CWDM, up to 10km, extended temperature.
- Manufacturer
- Coherent Corp. (formerly Finisar / II-VI)
- Mfr part number
- FTF3436W5BNV31
- Family
- FTF3436W5BNVxx
- Category
- Fiber optic transceiver modules
- Datasheet
- FTF3436W5BNV31 datasheet (PDF)
FTF3436W5BNV31 specifications
| Attribute | Value |
|---|---|
| Manufacturer | Coherent Corp. (Finisar) |
| Manufacturer part number | FTF3436W5BNV31 |
| Product family | FTF3436W5BNVxx |
| Form factor | SFP28 |
| Standards / application | 25G LR / CPRI-eCPRI CWDM (-20 to 85C) |
| Data rate | 25.78 Gb/s (25G LR / 10G LR) |
| Wavelength | CWDM, 1310 nm band |
| Laser | DFB (CWDM) |
| Receiver | PIN |
| Reach | 10 km duplex SMF |
| Connector | LC |
| Operating temperature | Extended |
| Lifecycle | Current production |
Optical and electrical values are from the Finisar / Coherent family datasheet or product page where available; temperature grade is per part number. Confirm critical values with us before ordering.
About the Finisar FTF3436W5BNV31
The Finisar FTF3436W5BNV31 (now a Coherent Corp. product, formerly II-VI) is a SFP28 25G LR / CPRI-eCPRI CWDM (-20 to 85C) optical transceiver for 25 Gb/s links at 1311nm CWDM over SMF, with reach up to 10km. It is an extended-temperature part. It belongs to Finisar's FTF3436W5BNVxx family, which has 6 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.
- 25 Gb/s · 25G LR / CPRI-eCPRI CWDM (-20 to 85C) · up to 10km
- 1311nm CWDM · SMF
- Extended temperature grade
- Part of the Finisar FTF3436W5BNVxx family (6 variants)
FTF3436W5BNV31: frequently asked questions
What is the Finisar FTF3436W5BNV31?
The FTF3436W5BNV31 is a Finisar SFP28 transceiver for 25G LR / CPRI-eCPRI CWDM (-20 to 85C) 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 FTF3436W5BNV31?
The FTF3436W5BNV31 is specified for up to 10km over SMF. Long-reach optics may need an attenuator on short links; we can advise based on your link loss.
Which fiber and connector does the FTF3436W5BNV31 use?
The FTF3436W5BNV31 works at 1311nm CWDM over SMF. CWDM/DWDM optics must match the channel of your mux/demux port. Both ends of a link must use the same optical standard.
Will the FTF3436W5BNV31 work in my Cisco, Juniper, Arista or HPE switch?
The FTF3436W5BNV31 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.
FTF3436W5BNV31 vs FTF3436W5BNV27: what is the difference?
Both are in Finisar's FTF3436W5BNVxx family. They differ in wavelength (1311nm CWDM vs 1271nm CWDM). Pick the variant that matches your temperature, latch and wavelength needs.
What temperature range is the FTF3436W5BNV31 rated for?
The FTF3436W5BNV31 is an extended-temperature part. Choose an industrial (T) variant for outdoor or uncontrolled sites.
What does the FTF3436W5BNV31 part number mean?
The FTF3 prefix marks Finisar's 25G CWDM SFP28 family. The E letter in the suffix usually marks the extended temperature grade. The remaining characters identify the optical design and build variant.
Is your FTF3436W5BNV31 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 FTF3436W5BNV31 price in India and how do I order?
The Finisar FTF3436W5BNV31 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.
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