SFP-2.5G-LX20-SM1310 2.5G Single-Mode 1310nm 20km Duplex — Product view 1
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SFP-2.5G-LX20-SM1310 2.5G Single-Mode 1310nm 20km Duplex — In a host switch 2
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SFP-2.5G-LX20-SM1310 2.5G Single-Mode 1310nm 20km Duplex — Application view 3
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SFP-2.5G-LX20-SM1310 2.5G Single-Mode 1310nm 20km Duplex — Application view 4
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SFP-2.5G-LX20-SM1310 2.5G Single-Mode 1310nm 20km Duplex — Application view 5
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SFP-2.5G-LX20-SM1310 2.5G Single-Mode 1310nm 20km Duplex — Application view 6
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Product images are illustrative renders for marketing reference; final delivered product is built to order per confirmed specifications.

2.5G SFP

SFP-2.5G-LX20-SM1310 2.5G Single-Mode 1310nm 20km Duplex

SFP-2.5G-LX20-SM1310 | 2.5G Single-Mode 1310nm 20km Duplex LC Transceiver with DDM

The SFP-2.5G-LX20-SM1310 is a 2.5 Gigabit SFP optical transceiver for reliable single-mode fiber transmission up to 20 km at 1310 nm. It features a duplex LC interface, full digital diagnostic monitoring (DDM/DDMI), and a 3.3 V hot-pluggable design that drops into any standard SFP port.

  • Stable 2.5 Gbps data rate for FTTx and switch uplinks
  • 1310 nm single-mode transmission, reach up to 20 km
  • Duplex LC connector on single-mode fiber (SMF)
  • Digital Diagnostic Monitoring (DDM / DDMI) for real-time status
Data rate
2.5 Gbps
Wavelength
1310 nm
Reach
20 km
Interface
Duplex LC
Fibre / media
Single-Mode (SMF)
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  • Coded and confirmed for your host platform before production
  • Samples for evaluation in the intended port
  • Specification, test data and compliance paperwork with the order

Overview

What this module is for.

The SFP-2.5G-LX20-SM1310 is a 2.5 Gigabit SFP optical transceiver for reliable single-mode fiber transmission up to 20 km at 1310 nm. It features a duplex LC interface, full digital diagnostic monitoring (DDM/DDMI), and a 3.3 V hot-pluggable design that drops into any standard SFP port. CE / FCC / RoHS certified and available with OEM custom labeling, it is built for FTTx, switch uplinks, and IP network deployments.

Review the exact module, host platform and complete link requirement before ordering. Our inquiry keeps the configuration, host details and quantity together in one record.

Check the optical budget for your path

Key selling points

  • Stable 2.5 Gbps data rate for FTTx and switch uplinks
  • 1310 nm single-mode transmission, reach up to 20 km
  • Duplex LC connector on single-mode fiber (SMF)
  • Digital Diagnostic Monitoring (DDM / DDMI) for real-time status
  • 3.3 V supply, standard SFP form factor, hot-pluggable
  • CE / FCC / RoHS certified; OEM and custom label supported

Technical detail

Listed specifications.

Fields published for initial selection. The production datasheet, coding and marking are confirmed with the quotation.

SFP-2.5G-LX20-SM1310 2.5G Single-Mode 1310nm 20km Duplex — listed specifications
ParameterListed value
Model NumberSFP-2.5G-LX20-SM1310
Data Rate2.5 Gbps
Wavelength1310 nm
Transmission Distance20 km
Connector TypeDuplex LC
Fiber TypeSingle-Mode (SMF)
Digital DiagnosticsDDM / DDMI supported
Supply Voltage3.3 V
Operating Temperature0 ~ 70 °C
Form FactorSFP, Hot-Pluggable
ApplicationFTTx, Switches, IP Network
CertificationCE, FCC, RoHS
Warranty12 Months

Technical drawings

Dimensions, structure and interfaces.

Supplier drawings for this product family. Click any drawing to enlarge it — the callouts are readable at full size.

Drawing 1 of 4 — click to enlarge
Drawing 2 of 4 — click to enlarge
Drawing 3 of 4 — click to enlarge
Drawing 4 of 4 — click to enlarge

Drawings are illustrative. Confirm mechanical dimensions and interface details against the production datasheet before design-in.

Build quality

Details that decide reliability.

Real-time DDM monitoring of temperature, voltage, bias, and optical power

Hot-swappable SFP design for zero-downtime maintenance

Low-loss gold-plated contacts for stable signal integrity

Rugged metal housing for durability and EMI protection

Where it is used

Typical applications.

  • FTTx access and last-mile single-mode links
  • Enterprise and campus switch uplinks
  • Metro and access IP networks
  • Carrier-grade single-mode deployments

Application notes describe common deployments for this product type. Confirm the design of your own link with the responsible engineering team.

Application concepts
Network equipment in a data centre aisle

OEM / ODM

Customization options.

  • OEM and custom label / coding supported
  • Industrial-temperature (-40 ~ 85 °C) grade available on request
  • Compatible coding for major switch brands on request

Availability, minimum quantity and lead time for customized configurations are confirmed in the quotation.

Discuss a custom configuration
Optical module coding and test

Ordering

What is confirmed, and what we need from you.

Listed ordering information

Model
SFP-2.5G-LX20-SM1310
Packaging
single item, 23 x 18 x 8 cm, 1.0 kg gross weight
Note
MOQ, lead time, and custom coding available on request

Include this in your inquiry

  • Product reference and required quantity
  • Host brand, model, port and software version
  • Fibre or cable type, connector and installed reach
  • Operating environment and temperature grade
  • Destination, sample needs and requested schedule

MOQ, lead time, warranty and applicable documents are confirmed in the quotation.

FAQ

Questions about this model.

What link distance is listed for the SFP-2.5G-LX20-SM1310 2.5G Single-Mode 1310nm 20km Duplex?

The listed reach is 20 km. Actual distance depends on the installed fibre loss, the number of connectors and splices and the receiver sensitivity at both ends, so confirm the optical budget for your own path before ordering. Our link budget calculator works through the arithmetic in a minute.

Which wavelength does this module use?

It is listed at 1310 nm. Both ends of a duplex link must use the same wavelength plan.

What connector and fibre does it need?

The listed interface is Duplex LC on Single-Mode (SMF). Check that your patch cords, panel adapters and polarity match before installation.

Is an industrial temperature version available?

The listed operating temperature is 0 ~ 70 °C. Commercial (0~70°C) and industrial (-40~85°C) grades can be quoted; state the installed environment in your inquiry so the right grade is offered.

Can it be coded for my switch?

Yes. Send the host manufacturer, the exact model and the software version with your inquiry. Coding is confirmed per platform before production — a connector that fits does not by itself prove the host will accept the module.

Can I evaluate a sample first?

Include the required quantity, host platform and destination in your inquiry. Sample availability, charges and lead time are confirmed in the quotation, and we recommend testing in the intended port before a bulk order.

More in the procurement FAQ.

Related

Other models in this family.

All 2.5G SFP

Next step

Confirm this configuration with us.

Send the host platform, the installed link and the quantity. We will confirm coding, reach and lead time in the quotation.

Request a quotation