SFPs / Transceivers
Lantronix TN-SFP-LX Series 1000Base-LX Single-Mode SFP Transceivers
The TN-SFP-LX Series are duplex single-mode Gigabit SFP transceivers with DMI and LC connectors, spanning 10 km to 200 km so the same family serves building links, metro rings and long-haul fiber spans.
From $49.02
Overview
About the Lantronix TN-SFP-LX Series
The TN-SFP-LX family (also written TN-SFP-LXx, as in TN-SFP-LX1 or TN-SFP-LX20) is Lantronix's range of MSA-compliant Gigabit SFPs for duplex single-mode fiber. What sets it apart is reach: a single part-number scheme runs from a 10 km module up to a 200 km module with a 41.0 dB link budget, so network designers can pick the optic that matches the measured loss of each span instead of over-specifying every link.
TN-SFP-LX1 and TN-SFP-LX1T use 1310 nm for 10 km with an 11.5 dB budget, and TN-SFP-LX3 uses 1310 nm for 30 km with 19.0 dB. At 1550 nm, TN-SFP-LX8 reaches 80 km (24.0 dB), TN-SFP-LX16 160 km (37.0 dB) and TN-SFP-LX20 200 km (41.0 dB). Every module includes DMI digital diagnostics, is hot-pluggable, follows IEEE 802.3 and draws 0.66 W at 3.3 V. Standard modules operate from 0 °C to 70 °C; LX1 is rated -10 °C to 85 °C and LX1T -40 °C to 85 °C.
Key capabilities
- 10 km to 200 km
- Five reach classes, 10, 30, 80, 160 and 200 km, cover campus, metro and long-haul single-mode Gigabit links.
- Up to 41 dB budget
- TN-SFP-LX20 provides a 41.0 dB link budget and TN-SFP-LX16 37.0 dB, leaving room for splices and connectors on very long spans.
- DMI on every model
- All TN-SFP-LX modules include digital diagnostics, so optical levels can be watched from the host switch on remote links.
- Industrial -40 °C option
- TN-SFP-LX1T is the 10 km module rated -40 °C to 85 °C for hardened switches and outdoor equipment.
- MSA hot-pluggable
- Standard SFP footprint per the Multi-Source Agreement, hot-swappable in Gigabit SFP ports of switches, routers and media converters.
How to choose the right TN-SFP-LX Series part number
The number after LX is the reach in tens of kilometers. TN-SFP-LX1 (1310 nm, 10 km, 11.5 dB, UL Listed) suits campus links, and TN-SFP-LX1T is the same optic rated -40 °C to 85 °C. TN-SFP-LX3 extends 1310 nm to 30 km (19.0 dB). For long spans choose a 1550 nm module: TN-SFP-LX8 for 80 km (24.0 dB), TN-SFP-LX16 for 160 km (37.0 dB) or TN-SFP-LX20 for 200 km (41.0 dB). Match the module's link budget to the measured fiber loss and use the same part at both ends.
Configure & order
Find your TN-SFP-LX Series part number
Every orderable TN-SFP-LX Series configuration, filtered by the specs that actually differ between them. Pick what you need on the left and the matching part numbers appear here.
TN-SFP-LX1
$49.02
Ships on backorder
TN-SFP-LX3
$412.50
Ships on backorder
TN-SFP-LX8
$599.50
Ships on backorder
TN-SFP-LX16
$1,045.00
Ships on backorder
TN-SFP-LX20
$2,860.00
Ships on backorder
TN-SFP-LX1T
$214.50
Ships on backorder
Where the TN-SFP-LX Series is used
- Single-mode campus and building links up to 10 km
- Metro edge rings spanning 30 to 80 km
- Long-haul Gigabit spans up to 160 or 200 km
- Hardened switch uplinks with TN-SFP-LX1T in outdoor cabinets
TN-SFP-LX Series datasheets & documentation
TN-SFP-LX Series FAQ
What is the longest reach in the TN-SFP-LX Series?
TN-SFP-LX20 is rated for 200 km over single-mode fiber at 1550 nm with a 41.0 dB link budget. TN-SFP-LX16 covers 160 km with 37.0 dB, and TN-SFP-LX8 covers 80 km with 24.0 dB.
What is the difference between TN-SFP-LX1 and TN-SFP-LX1T?
Both are 1000Base-LX 1310 nm single-mode modules with DMI, LC connectors, a 10 km reach and an 11.5 dB link budget. TN-SFP-LX1 operates from -10 °C to 85 °C and is UL Listed, while TN-SFP-LX1T operates from -40 °C to 85 °C.
Do TN-SFP-LX modules support digital diagnostics?
Yes. Every TN-SFP-LX part number includes DMI digital diagnostics, so compatible switches and routers can read optical and module data. The modules comply with the SFP Multi-Source Agreement and are hot-pluggable.
Which wavelength do TN-SFP-LX transceivers use?
The 10 km and 30 km modules (TN-SFP-LX1, LX1T and LX3) transmit at 1310 nm. The long-reach modules (TN-SFP-LX8, LX16 and LX20) transmit at 1550 nm. All are duplex LC and need a matching module at the far end.
Where are TN-SFP-LX SFPs typically used?
Lantronix lists Gigabit Ethernet switches and routers, Fiber Channel switch infrastructure, xDSL applications and metro edge switching as applications. The range of reach classes makes them suited to campus, metro and long-distance single-mode links.
