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Finisar FTLF1521P1xCL OC-48 IR-2 SFP 1550nm DFB 15km
up to 2.67 Gb/s OC-48 IR-2 / STM S-16.2 multirate (2.67G) SFP transceiver, 1550nm DFB, up to 15km / 40km class, commercial (0 to 70 °c) temperature.
- Manufacturer
- Coherent Corp. (formerly Finisar / II-VI)
- Mfr part number
- FTLF1521P1xCL
- Family
- FTLF1521P1
- Category
- Fiber optic transceiver modules
- Datasheet
- FTLF1521P1xCL datasheet (PDF)
FTLF1521P1xCL specifications
| Attribute | Value |
|---|---|
| Manufacturer | Coherent Corp. (Finisar) |
| Manufacturer part number | FTLF1521P1xCL |
| Product family | FTLF1521P1 |
| Form factor | SFP |
| Standards / application | SONET OC-48 IR-2 / SDH STM S-16.2; GbE (IEEE 802.3); Fibre Channel FC-PI 13.0 |
| Data rate | 155–2667 Mb/s |
| Wavelength | Tx 1430–1580 nm; Rx 1270–1600 nm |
| Laser | Uncooled 1550 nm DFB |
| Reach | 15 km @ OC-48; 50 km @ 2x FC; 60 km @ GbE/OC-12/OC-3 |
| Connector | Duplex LC |
| Tx output power | −5 to 0 dBm |
| Rx sensitivity | −18 dBm @ OC-48 to −23 dBm @ OC-3 |
| Extinction ratio | 9 dB min |
| Supply voltage | 3.3 V (3.10–3.50 V) |
| Power dissipation | Icc 200 typ / 300 mA max |
| Operating temperature | Commercial (0 to 70 °C) |
| Diagnostics | Digital diagnostics via 2-wire serial interface per SFP MSA (temperature, laser bias, Tx/Rx power, voltage; alarm/warning flags) |
| Compliance | Class 1 laser (FDA/CDRH, EN 60825); RoHS (2011/65/EU) |
| Lifecycle | Current production |
Optical and electrical values are from the Finisar / Coherent family datasheet; temperature grade is per part number. Confirm critical values with us before ordering.
FTLF1521P1xCL: orderable variants (2)
| Part number | Details |
|---|---|
| FTLF1521P1BCL | Narrow extraction bail |
| FTLF1521P1WCL | Wide extraction bail |
Ask for any variant on WhatsApp +91-7827955775 or Sales@nextgennetworks.in – bulk pricing by quantity.
About the Finisar FTLF1521P1xCL
The Finisar FTLF1521P1xCL (now a Coherent Corp. product, formerly II-VI) is a SFP OC-48 IR-2 / STM S-16.2 multirate (2.67G) optical transceiver for up to 2.67 Gb/s links at 1550nm DFB over SMF, with reach up to 15km / 40km class. It is a commercial-temperature part rated 0 to 70 °C. The FTLF1521P1xCL family name covers 2 orderable variants listed below. Typical uses: Gigabit Ethernet, 1/2/4G Fibre Channel SAN, SONET OC-48 / STM-16 and CWDM/DWDM metro links.
- Up to 2.67Gb/s bi-directional data links
- Hot-pluggable SFP footprint
- Built-in digital diagnostic functions
- Uncooled 1550nm DFB laser transmitter
- RoHS compliant and lead-free
FTLF1521P1xCL: frequently asked questions
What is the Finisar FTLF1521P1xCL?
The FTLF1521P1xCL is a Finisar SFP transceiver for OC-48 IR-2 / STM S-16.2 multirate (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 does the 'x' in FTLF1521P1xCL mean?
FTLF1521P1xCL is Finisar's family / ordering name. The 'x' is replaced by a code to make the exact orderable part number. For this family the codes are: B, W. See the variants table and tell us which one you need, or share your switch and link details and we will pick the right one.
What is the optical power budget of the FTLF1521P1xCL?
Per the Finisar family datasheet, the FTLF1521P1xCL transmits −5 to 0 dBm and has a receiver sensitivity of −18 dBm @ OC-48 to −23 dBm @ OC-3.
Does the FTLF1521P1xCL support DDM / digital diagnostics?
Yes. Digital diagnostics via 2-wire serial interface per SFP MSA (temperature, laser bias, Tx/Rx power, voltage; alarm/warning flags). Your switch can read live temperature, voltage, laser bias and Tx/Rx power.
Which part numbers are in the FTLF1521P1xCL family?
Orderable variants include: FTLF1521P1BCL, FTLF1521P1WCL. Next Gen Networks supplies the exact variant you need in bulk with a GST invoice.
What is the maximum distance of the FTLF1521P1xCL?
The FTLF1521P1xCL is specified for up to 15km / 40km class 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 FTLF1521P1xCL use?
The FTLF1521P1xCL works at 1550nm DFB over SMF. Both ends of a link must use the same optical standard.
Will the FTLF1521P1xCL work in my Cisco, Juniper, Arista or HPE switch?
The FTLF1521P1xCL 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.
What temperature range is the FTLF1521P1xCL rated for?
The FTLF1521P1xCL is a commercial-temperature part rated 0 to 70 °C. Choose an industrial (T) variant for outdoor or uncontrolled sites.
What does the FTLF1521P1xCL part number mean?
The FTLF prefix marks Finisar's SFP / SFP28 / SFP56 family (incl. Fibre Channel). The C letter in the suffix usually marks the commercial temperature grade. The remaining characters identify the optical design and build variant.
Is your FTLF1521P1xCL 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 FTLF1521P1xCL price in India and how do I order?
The Finisar FTLF1521P1xCL 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 FTLF1521P1xCL need?
It runs from 3.3 V (3.10–3.50 V) with power dissipation of Icc 200 typ / 300 mA max.
Documents
NextGen datasheetPDF · specs, FAQ & buying guideDownload datasheet
Finisar_FTLF1521P1xCL_Datasheet_NextGenNetworks.pdfManufacturer datasheet
Finisar / Coherent family datasheet
Related Finisar parts
FTLF1521P1BCLOC-48 IR-2 / STM S-16.2 multirate, 15km / 40km classFTLF1521P1WCLOC-48 IR-2 / STM S-16.2 multirate, 15km / 40km classGovernment, PSU and enterprise orders welcome. GST invoice and pan-India delivery.
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