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Finisar FTLF8524E2KNL 4G/2G/1G FC SFF 2x7 850nm 150m @4G
up to 4.25 Gb/s 4G/2G/1G FC SFF 2x7 transceiver, 850nm, up to 150m @4G (550m lower rates), extended (−10 to 85 °c) temperature.
- Manufacturer
- Coherent Corp. (formerly Finisar / II-VI)
- Mfr part number
- FTLF8524E2KNL
- Family
- FTLF8524E2
- Category
- Fiber optic transceiver modules
- Datasheet
- FTLF8524E2KNL datasheet (PDF)
FTLF8524E2KNL specifications
| Attribute | Value |
|---|---|
| Manufacturer | Coherent Corp. (Finisar) |
| Manufacturer part number | FTLF8524E2KNL |
| Product family | FTLF8524E2 |
| Form factor | SFF 2x7 |
| Standards / application | FC-PI-2 Rev 10.02 |
| Data rate | 1.0625 / 2.125 / 4.25 Gb/s FC (tri-rate) |
| Wavelength | 830–860 nm |
| Laser | 850 nm oxide VCSEL |
| Receiver | PIN (Coherent product page) |
| Reach | 50/125 µm MMF: 500 m @ 1.0625, 300 m @ 2.125, 150 m @ 4.25 Gb/s; 62.5/125 µm MMF: 300 m / 150 m / 70 m |
| Connector | Duplex LC |
| Tx output power | −9 to −2.5 dBm |
| Rx sensitivity | −20 dBm @ 1.0625 Gb/s; −18 dBm @ 2.125 Gb/s; −15 dBm @ 4.25 Gb/s |
| Rx overload / max input | 0 dBm |
| Extinction ratio | 9 dB |
| Supply voltage | 3.3 V (3.0–3.6 V) |
| Power dissipation | Supply current 180 typ / 240 max mA |
| Operating temperature | Extended (−10 to 85 °C) |
| Diagnostics | Digital diagnostics over 2-wire serial (temp, bias, optical power, voltage) |
| Compliance | Class 1 laser product (EN/IEC 60825, EN/IEC 60950); RoHS 2002/95/EC |
| Lifecycle | Legacy / end-of-life |
| Variant note | K = 2 grounding pins, long EMI shield; L = non rate-selectable |
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 FTLF8524E2KNL
The Finisar FTLF8524E2KNL (now a Coherent Corp. product, formerly II-VI) is a SFF 2x7 4G/2G/1G FC optical transceiver for up to 4.25 Gb/s links at 850nm over MMF, with reach up to 150m @4G (550m lower rates). It is an extended-temperature part rated −10 to 85 °C. It belongs to Finisar's FTLF8524E2 family, which has 4 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.
- 2x7 pin SFF-like footprint
- Built-in digital diagnostic functions
- Metal enclosure, for lower EMI
- Single 3.3 V power supply
FTLF8524E2KNL: frequently asked questions
What is the Finisar FTLF8524E2KNL?
The FTLF8524E2KNL is a Finisar SFF 2x7 transceiver for 4G/2G/1G FC at up to 4.25 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 FTLF8524E2KNL?
The FTLF8524E2KNL is specified for up to 150m @4G (550m lower rates) over MMF. 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 FTLF8524E2KNL?
Per the Finisar family datasheet, the FTLF8524E2KNL transmits −9 to −2.5 dBm and has a receiver sensitivity of −20 dBm @ 1.0625 Gb/s; −18 dBm @ 2.125 Gb/s; −15 dBm @ 4.25 Gb/s. Maximum receiver input is 0 dBm.
Does the FTLF8524E2KNL support DDM / digital diagnostics?
Yes. Digital diagnostics over 2-wire serial (temp, bias, optical power, voltage). Your switch can read live temperature, voltage, laser bias and Tx/Rx power.
Which fiber and connector does the FTLF8524E2KNL use?
The FTLF8524E2KNL works at 850nm over MMF. Both ends of a link must use the same optical standard.
Will the FTLF8524E2KNL work in my Cisco, Juniper, Arista or HPE switch?
The FTLF8524E2KNL follows the SFF 2x7 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.
FTLF8524E2KNL vs FTLF8524E2GNV: what is the difference?
Both are in Finisar's FTLF8524E2 family. They differ in build / application (4G/2G/1G FC vs 4G/2G/1G FC + GbE (rate select)). Pick the variant that matches your temperature, latch and wavelength needs.
What temperature range is the FTLF8524E2KNL rated for?
The FTLF8524E2KNL is an extended-temperature part rated −10 to 85 °C. Choose an industrial (T) variant for outdoor or uncontrolled sites.
What does the FTLF8524E2KNL part number mean?
The FTLF prefix marks Finisar's SFP / SFP28 / SFP56 family (incl. Fibre Channel). The E letter in the suffix usually marks the extended temperature grade. The remaining characters identify the optical design and build variant.
Is the FTLF8524E2KNL still available?
The FTLF8524E2KNL 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 FTLF8524E2KNL price in India and how do I order?
The Finisar FTLF8524E2KNL 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 FTLF8524E2KNL need?
It runs from 3.3 V (3.0–3.6 V) with power dissipation of Supply current 180 typ / 240 max mA.
Documents
NextGen datasheetPDF · specs, FAQ & buying guideManufacturer datasheet
Finisar / Coherent family datasheet
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