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1000BASE-LX/LH SFP 1310nm 20km Transceiver

Model:UF-SFP-1G-20, UF-SFP-1G-L20

  • Data rate:1.25G
  • Distance:20km
  • Wavelength (nm):1310
  • Source:FP+PIN
  • DDM: YES
  • Media Type:SMF

The SFP transceivers are high performance, cost effective modules supporting 1.25Gbps/1.0625Gbps data-rate and 20km transmission distance with SMF.

The transceiver consists of three sections: a VCSEL laser transmitter, a PIN photodiode integrated with a trans-impedance preamplifier (TIA) and MCU control unit. All modules satisfy class I laser safety requirements.

The transceivers are compatible with SFP Multi-Source Agreement (MSA) and SFF-8472. For further information, please refer to SFP MSA.

1000BASE-LX/LH SFP 1310nm 20km Transceiver

  • Data-rate of 1.25Gbps/1.063Gbps operation
  • 1310nm FP laser and PIN photodetector for 20km transmission
  • Compliant with SFP MSA and SFF-8472 with duplex LC receptacle
  • Digital Diagnostic Monitoring:
  • Internal Calibration or External Calibration
  • Compatible with SONET OC-24-LR-1
  • Compatible with RoHS
  • +3.3V single power supply
  • Operating case temperature:
  • Commercial: 0 to +70°C
  • Industrial: -40 to +85°C


•Gigabit Ethernet Links
•Fast Ethernet Links
•Fiber Channel Links
•Other Optical Links


•Operating Data Rate up to 1.25Gbps
•Single 3.3V Power Supply
•Hot-Pluggable SFP Footprint Duplex LC Connector Interface
•Class 1 FDA and IEC60825-1 Laser Safety Compliant
•Operating Temperature: Com.0°C ~+70°C/Ind.:-40°C ~+85°C /Ext.:-20°C ~+70°C
•Compliant with MSA SFP Specification
•Compliant with SFF-8472
  • Download FileName:UF-SFP-1G-20 1.25G SMF 20KM SFP Datasheet V1.0.pdf Size: 438KB

Part Number

Product Description


1310nm, 1.25Gbps, 20km, 0ºC ~ +70ºC, With Digital Diagnostic Monitoring


1310nm, 1.25Gbps, 20km, -40ºC ~ +85ºC, With Digital Diagnostic Monitoring

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