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Finisar FWLF15217D51 CWDM multi-rate SFP CWDM 1511nm 50km
up to 2.67 Gb/s CWDM multi-rate OC-48/STM-16, GbE, FC (to 2.67G) SFP transceiver, CWDM 1511nm, up to 50km, commercial (0 to 70 °c) temperature.
- Manufacturer
- Coherent Corp. (formerly Finisar / II-VI)
- Mfr part number
- FWLF15217D51
- Family
- FWLF15217D
- Category
- Fiber optic transceiver modules
- Datasheet
- FWLF15217D51 datasheet (PDF)
FWLF15217D51 specifications
| Attribute | Value |
|---|---|
| Manufacturer | Coherent Corp. (Finisar) |
| Manufacturer part number | FWLF15217D51 |
| Product family | FWLF15217D |
| Form factor | SFP |
| Standards / application | SONET, Gigabit Ethernet, Fibre Channel |
| Data rate | 0.622–2.67 Gb/s |
| Wavelength | 1471/1491/1511/1531/1551/1571/1591/1611 nm (8 CWDM channels) |
| Laser | Uncooled DFB |
| Reach | Link budget 20–21.0 dB @2.67 Gb/s |
| Connector | Duplex LC |
| Tx output power | 0 to +5 dBm |
| Rx sensitivity | −20 dBm |
| Rx overload / max input | 0 dBm (max input per sensitivity range) |
| Extinction ratio | 8.2 dB |
| Supply voltage | 3.3 V (3.15–3.60 V) |
| Power dissipation | < 700 mW |
| Operating temperature | Commercial (0 to 70 °C) |
| Diagnostics | Built-in digital diagnostics, 2-wire serial interface |
| Compliance | Class 1 laser product (FDA/CDRH, IEC-825) |
| Lifecycle | Current production |
| Variant note | Wavelength 1511 nm (clasp color: blue) |
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 FWLF15217D51
The Finisar FWLF15217D51 (now a Coherent Corp. product, formerly II-VI) is a SFP CWDM multi-rate OC-48/STM-16, GbE, FC (to 2.67G) optical transceiver for up to 2.67 Gb/s links at CWDM 1511nm over SMF, with reach up to 50km. It is a commercial-temperature part rated 0 to 70 °C. It belongs to Finisar's FWLF15217D family, which has 8 orderable variants that differ by temperature grade, latch, receiver build or wavelength channel. Typical uses: Gigabit Ethernet, 1/2/4G Fibre Channel SAN, SONET OC-48 / STM-16 and CWDM/DWDM metro links.
- Up to 2.67 Gb/s bi-directional data links
- Hot-pluggable SFP footprint
- Built-in digital diagnostic functions
- Very low jitter
- Metal enclosure, for lower EMI
- Single 3.3V power supply
FWLF15217D51: frequently asked questions
What is the Finisar FWLF15217D51?
The FWLF15217D51 is a Finisar SFP transceiver for CWDM multi-rate OC-48/STM-16, GbE, FC (to 2.67G) at up to 2.67 Gb/s. Finisar is now part of Coherent Corp. (formerly II-VI), and the part number is unchanged. It is used for Gigabit Ethernet, 1/2/4G Fibre Channel SAN, SONET OC-48 / STM-16 and CWDM/DWDM metro links.
What is the maximum distance of the FWLF15217D51?
The FWLF15217D51 is specified for up to 50km over SMF. 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 FWLF15217D51?
Per the Finisar family datasheet, the FWLF15217D51 transmits 0 to +5 dBm and has a receiver sensitivity of −20 dBm. Maximum receiver input is 0 dBm (max input per sensitivity range).
Does the FWLF15217D51 support DDM / digital diagnostics?
Yes. Built-in digital diagnostics, 2-wire serial interface. Your switch can read live temperature, voltage, laser bias and Tx/Rx power.
Which fiber and connector does the FWLF15217D51 use?
The FWLF15217D51 works at CWDM 1511nm 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 FWLF15217D51 work in my Cisco, Juniper, Arista or HPE switch?
The FWLF15217D51 follows the SFP 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.
FWLF15217D51 vs FWLF15217D47: what is the difference?
Both are in Finisar's FWLF15217D family. They differ in wavelength (CWDM 1511nm vs CWDM 1471nm). Pick the variant that matches your temperature, latch and wavelength needs.
What temperature range is the FWLF15217D51 rated for?
The FWLF15217D51 is a commercial-temperature part rated 0 to 70 °C. Choose an industrial (T) variant for outdoor or uncontrolled sites.
What does the FWLF15217D51 part number mean?
The FWLF prefix marks Finisar's CWDM / DWDM wavelength-specific SFP family. The C letter in the suffix usually marks the commercial temperature grade. The remaining characters identify the optical design and build variant.
Is your FWLF15217D51 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 FWLF15217D51 price in India and how do I order?
The Finisar FWLF15217D51 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 FWLF15217D51 need?
It runs from 3.3 V (3.15–3.60 V) with power dissipation of < 700 mW.
Documents
NextGen datasheetPDF · specs, FAQ & buying guideManufacturer datasheet
Finisar / Coherent family datasheet
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