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25GBASE-LR SFP28 1310nm 10km DDM Duplex LC SMF Transceiver Module

SFP28-25G-LR-SM

$46.00

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  • High-speed data rate up to 25.78Gbps.
  • Supports 10km transmission on SMF.
  • Equipped with DFB Laser and PIN-TIA receiver.
  • Dual CDR for reduced EMI.
  • Integrated digital diagnostic monitoring.
  • Hot-pluggable SFP28 footprint.
  • Complies with SFF 8472 and SFF-8402 standards.
  • Operates on a single 3.3V power supply.
  • Low power dissipation under 1.2W.

  • Suitable for commercial and industrial environments.

25GBASE-LR SFP28 Transceiver Module (1310nm, 10km, DDM Duplex LC, SMF)

The 25G SFP28 transceiver supports data rates from 24.33Gb/s to 25.78Gb/s over distances up to 10km on single-mode fiber. This module integrates a DFB laser and PIN-TIA receiver, enhanced with built-in dual CDR for minimal EMI and optimal signal integrity. It features a low-jitter, low-bit error rate optical setup, and dual CDR on both transmission and reception to maintain signal quality. Ideal for high-speed communications equipment in both commercial (0°C to +70°C) and industrial (-40°C to +85°C) settings, this transceiver ensures robust performance with low power consumption. Perfect for networks needing long reach and high bandwidth with stringent power efficiency, ideal for data center backbone, high-performance computing, ethernet switches, and high-speed servers.

Specification

Form FactorSFP28Vendor NameAsterfusion
MediaSMFWavelength1310nm
ConnectorLCMax. Cable Distance10km
Data Rate25.78GbpsPower Consumption≤1.2w
Receive Power Overload＞2dBmReceiver Sensitivity<-12 dBm
Extinction Ratio＞3dBPower Supply3.3V
DDMSupportedCDR (Clock and Data Recovery)TX & RX Built-in CDR
RX LOSYesTX Disable functionYes
Operating Case Temperature0 to 70°C (32 to 158°F)Protocols25G Ethernet Compliant

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    FAQ

    The difference in range between SFP28 LR and SR modules?
    The transmission distances are the most difference between SFP28 LR and SR modules. The SFP28 LR can transmit up to 10 kilometers, which is ideal for joining distant facilities. For short distances up to 100 meters, the SFP28 SR works best. It works well in data centers and near buildings.

    Can SFP+ devices use SFP28 ports?
    SFP28 ports and SFP+ transceivers function well. The fastest SFP+ can manage is 10 Gbps, hence using one in an SFP28 port limits network speed.
    Is the SFP28 25GBASE-LR module hot-swappable?
    Yes, the SFP28 25GBASE-LR module is hot-swappable, meaning it can be inserted or removed from a device without shutting down the system. This feature helps in maintaining network uptime during upgrades or replacements.
    Can I replace the SFP28 25GBASE-LR module while the switch is on?
    In fact, the SFP28 25GBASE-LR adaptor can be replaced while functioning. This makes it easy to insert or remove without turning off the system. This feature keeps the network online during upgrades and replacements.

    Does SFP28 25GBASE-LR need an attenuator beyond 10 km?
    The SFP28 25GBASE-LR can deliver data 10 kilometers without an amplifier. Because it was designed for this distance, the transceiver module doesn’t need any reduction. Check receiver sensitivity and power levels for optimal results.

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