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Position: Home > Products > Active Components > Optical Transceivers

SUN-SFP28-25G-LR Optical Transceiver

Model: SUN-SFP28-25G-LR

25Gbps,1310nm; SM, dual fiber, max transmission distance: 10km; LC interface

    Key Features

  • 25Gb/s serial optical interface
  • 1310nm DFB transmitter, PIN photo-detector
  • 2-wire interface for management specifications compliant with SFF 8472, digital diagnostic monitoring interface for optical transceivers
  • Advanced firmware allow customer system encryption information to be stored in transceiver
  • Cost effective SFP28 solution, enables higher port densities and greater bandwidth
  • Operating case temperature: Standard: 0~+70°C, Industrial: -40~+85°C
  • Description
  • Specifications
  • Ordering Information
  • Applications
  • FAQ
  • Product Video
  • Sun Telecom’s SUN-SFP28-25G-LR SFP transceiver is designed to transmit and receive optical data over single mode optical fiber for link length 10km. The SFP28 LR module electrical interface is compliant to SFI electrical specifications.
    The transmitter input and receiver output impedance is 100 Ohms differential. Data lines are internally AC coupled. The module provides differential termination and reduce differential to common mode conversion for quality signal termination and low EMI. SFI typically operates over 200 mm of improved FR4 material or up to about 150mmof standard FR4 with one connector.
    The transmitter converts 25Gbit/s serial PECL or CML electrical data into serial optical data compliant with the 25GBASE-LR standard.
  • Transceiver Block Diagram

    Absolute Maximum Ratings
    Parameter Symbol Min Max Units
    Supply Voltage Vcc 0 3.6 V
    Storage Temperature Tc -40 85 ºC
    Relative Humidity (Non-condensation) RH 5 90 %
    Operating Conditions

    Parameter Symbol Min Max Units
    Supply Voltage Vcc 3.1 3.5 V
    Operating Case Temperature Tcase 0 70 ºC
    Power Consumption PDISS   1.5 W
    SMF Link Length LKM   10 KM
    Data Rate - 25.78 - Gbps
    Optical Characteristics

    Parameter Min Typical Max Units
    Center Wavelength 1290 - 1330 nm
    Side Mode Suppression Ratio 30 - - dB
    Average Optical Power -8.4 - 3 dBm
    Laser Off Power - - -30 dBm
    Extinction Ratio 3.5 - - dBm
    Transmitter Dispersion Penalty - - - dB
    Relative Intensity Noise - - - dB/Hz
    Center Wavelength 1260   1360 nm
    Receiver Sensitivity in average power - - -10.4 dBm
    Receiver Sensitivity in OMA - - -8.6 dBm
    Stressed Sensitivity (OMA) - - -6.8 dBm
    Stressed eye jitter - - - UIp-p
    Receive electrical 3dB upper cutoff frequency - - - GHz
    LOS Assert - - - dBm
    LOS Dessert - - - dBm
    LOS Hysteresis - - - dB
    Overload - - 3.5 dBm
    Receiver Power Damage     5 dBm
    Receiver Reflectance - - -12 dB

    Dimensions (mm)
    Comply with SFF-8432 rev. 5.0, the improved pluggable form factor specification

  • Model Name Description
    SUN-SFP28-25G-LR Optical Transceiver SFP28, 25Gbps,1310nm; SM, dual fiber, max transmission distance: 10km; LC interface
    SUN-SFP28-25G-LR-I Optical Transceiver SFP28, 25Gbps,1310nm; SM, dual fiber, max transmission distance: 10km; LC interface, Industrial

  • ● High-speed storage area networks
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