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Finisar FTLF1521P1WCL 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
- FTLF1521P1WCL
- Family
- FTLF1521P1
- Category
- Fiber optic transceiver modules
- Datasheet
- FTLF1521P1WCL datasheet (PDF)
FTLF1521P1WCL specifications
| Attribute | Value |
|---|---|
| Manufacturer | Coherent Corp. (Finisar) |
| Manufacturer part number | FTLF1521P1WCL |
| 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 | Legacy / end-of-life |
| Variant note | Wide extraction bail |
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 FTLF1521P1WCL
The Finisar FTLF1521P1WCL (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. It belongs to Finisar's FTLF1521P1 family, which has 2 orderable variants that differ by temperature grade, latch, receiver build or wavelength channel. This is a legacy Finisar part; we help buyers find remaining stock or a current Coherent alternative. 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
FTLF1521P1WCL: frequently asked questions
What is the Finisar FTLF1521P1WCL?
The FTLF1521P1WCL 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 is the maximum distance of the FTLF1521P1WCL?
The FTLF1521P1WCL 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.
What is the optical power budget of the FTLF1521P1WCL?
Per the Finisar family datasheet, the FTLF1521P1WCL transmits −5 to 0 dBm and has a receiver sensitivity of −18 dBm @ OC-48 to −23 dBm @ OC-3.
Does the FTLF1521P1WCL 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 fiber and connector does the FTLF1521P1WCL use?
The FTLF1521P1WCL works at 1550nm DFB over SMF. Both ends of a link must use the same optical standard.
Will the FTLF1521P1WCL work in my Cisco, Juniper, Arista or HPE switch?
The FTLF1521P1WCL 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.
FTLF1521P1WCL vs FTLF1521P1BCL: what is the difference?
Both are in Finisar's FTLF1521P1 family and share the same core optics; the suffix marks a different build option (latch, receiver or ordering variant). Pick the variant that matches your temperature, latch and wavelength needs.
What temperature range is the FTLF1521P1WCL rated for?
The FTLF1521P1WCL is a commercial-temperature part rated 0 to 70 °C. Choose an industrial (T) variant for outdoor or uncontrolled sites.
What does the FTLF1521P1WCL 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 the FTLF1521P1WCL still available?
The FTLF1521P1WCL is a legacy Finisar part, so new production is limited or ended. Next Gen Networks helps source remaining genuine stock and can suggest a current Coherent alternative with the same reach and wavelength.
What is the FTLF1521P1WCL price in India and how do I order?
The Finisar FTLF1521P1WCL 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 FTLF1521P1WCL 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 guideManufacturer datasheet
Finisar / Coherent family datasheet
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