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Finisar FTLF1521P1BCL 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
- FTLF1521P1BCL
- Family
- FTLF1521P1
- Category
- Fiber optic transceiver modules
- Datasheet
- FTLF1521P1BCL datasheet (PDF)
FTLF1521P1BCL specifications
| Attribute | Value |
|---|---|
| Manufacturer | Coherent Corp. (Finisar) |
| Manufacturer part number | FTLF1521P1BCL |
| 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 |
| Variant note | Narrow 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 FTLF1521P1BCL
The Finisar FTLF1521P1BCL (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. 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
FTLF1521P1BCL: frequently asked questions
What is the Finisar FTLF1521P1BCL?
The FTLF1521P1BCL 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 FTLF1521P1BCL?
The FTLF1521P1BCL 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 FTLF1521P1BCL?
Per the Finisar family datasheet, the FTLF1521P1BCL transmits −5 to 0 dBm and has a receiver sensitivity of −18 dBm @ OC-48 to −23 dBm @ OC-3.
Does the FTLF1521P1BCL 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 FTLF1521P1BCL use?
The FTLF1521P1BCL works at 1550nm DFB over SMF. Both ends of a link must use the same optical standard.
Will the FTLF1521P1BCL work in my Cisco, Juniper, Arista or HPE switch?
The FTLF1521P1BCL 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.
FTLF1521P1BCL vs FTLF1521P1WCL: 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 FTLF1521P1BCL rated for?
The FTLF1521P1BCL is a commercial-temperature part rated 0 to 70 °C. Choose an industrial (T) variant for outdoor or uncontrolled sites.
What does the FTLF1521P1BCL 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 FTLF1521P1BCL 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 FTLF1521P1BCL price in India and how do I order?
The Finisar FTLF1521P1BCL 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 FTLF1521P1BCL 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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