Finisar FTLF1318P3BTL 1000BASE-LX Optical Transceiver
The Finisar FTLF1318P3BTL is an industrial-grade 1000BASE-LX SFP optical transceiver designed for 1.25 Gbps single-mode links up to 10 km over 9/125 μm SMF via a duplex LC interface. It suits network integrators and system builders deploying Gigabit Ethernet or 1G Fibre Channel backbones in harsh or extended-temperature environments. Note that the operating temperature range of -40°C to +85°C is an industrial-grade rating — confirm your host switch supports the full industrial temperature envelope to benefit from it.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Part Number | FTLF1318P2BTL-J3 |
| Manufacturer | Finisar |
| Form Factor | SFP (Small Form-Factor Pluggable) |
| Data Rate | 1.25 Gbps |
| Optical Interface | Duplex LC |
| Wavelength | 1310 nm |
| Fiber Type | Single-Mode Fiber (SMF, 9/125 μm) |
| Maximum Distance | 10 km |
| Transmitter Type | 1310 nm FP Laser |
| Receiver Type | PIN Photodiode |
| Supported Standards | IEEE 802.3z 1000BASE-LX, 1G Fibre Channel |
| Supply Voltage | 3.3 V |
| Power Consumption | < 0.6 W (Typical) |
| Digital Diagnostics | DDM/DOM Supported (monitoring on the host switch) |
| Hot-Pluggable | Yes |
| Operating Temperature | -40°C to +85°C (Industrial Grade) |
| EMI Protection | Metal Enclosure with Low EMI Emission |
| Compliance | RoHS Compliant |
Good to know
- As a 1310 nm LX-class module, it pairs with matched 1310 nm LX/SX-family optics on the far end and is typically deployed between SFP ports on enterprise switches, routers, and media converters; verify coding/compatibility with your switch vendor, as many platforms enforce vendor-locked or whitelisted transceivers.
- Within Finisar’s SFP portfolio, this LX variant targets longer 10 km single-mode runs, whereas SX-class 850 nm modules are limited to multimode in-building distances — choose based on your fiber plant, not reach headroom alone.
- Its 1G Fibre Channel support makes it reusable across both Ethernet and SAN storage links; when buying, confirm the exact part number suffix against your bill of materials, as suffixes denote coding and packaging variations.
For tray and reel pricing, current stock by part number and date code, and volume discounts on bulk orders, request a bulk quotation.
The Finisar FTLF1318P3BTL is an industrial-grade 1000BASE-LX SFP optical transceiver designed for 1.25 Gbps single-mode links up to 10 km over 9/125 μm SMF via a duplex LC interface. It suits network integrators and system builders deploying Gigabit Ethernet or 1G Fibre Channel backbones in harsh or extended-temperature environments. Note that the operating temperature range of -40°C to +85°C is an industrial-grade rating — confirm your host switch supports the full industrial temperature envelope to benefit from it.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Part Number | FTLF1318P2BTL-J3 |
| Manufacturer | Finisar |
| Form Factor | SFP (Small Form-Factor Pluggable) |
| Data Rate | 1.25 Gbps |
| Optical Interface | Duplex LC |
| Wavelength | 1310 nm |
| Fiber Type | Single-Mode Fiber (SMF, 9/125 μm) |
| Maximum Distance | 10 km |
| Transmitter Type | 1310 nm FP Laser |
| Receiver Type | PIN Photodiode |
| Supported Standards | IEEE 802.3z 1000BASE-LX, 1G Fibre Channel |
| Supply Voltage | 3.3 V |
| Power Consumption | < 0.6 W (Typical) |
| Digital Diagnostics | DDM/DOM Supported (monitoring on the host switch) |
| Hot-Pluggable | Yes |
| Operating Temperature | -40°C to +85°C (Industrial Grade) |
| EMI Protection | Metal Enclosure with Low EMI Emission |
| Compliance | RoHS Compliant |
Good to know
- As a 1310 nm LX-class module, it pairs with matched 1310 nm LX/SX-family optics on the far end and is typically deployed between SFP ports on enterprise switches, routers, and media converters; verify coding/compatibility with your switch vendor, as many platforms enforce vendor-locked or whitelisted transceivers.
- Within Finisar’s SFP portfolio, this LX variant targets longer 10 km single-mode runs, whereas SX-class 850 nm modules are limited to multimode in-building distances — choose based on your fiber plant, not reach headroom alone.
- Its 1G Fibre Channel support makes it reusable across both Ethernet and SAN storage links; when buying, confirm the exact part number suffix against your bill of materials, as suffixes denote coding and packaging variations.
For tray and reel pricing, current stock by part number and date code, and volume discounts on bulk orders, request a bulk quotation.
