Optcore 1.25Gbps 1550nm-TX/1310nm-RX 40km BiDi SFP Transceiver

The Optcore OPB1250-5340xCR is a BiDi (bi-directional) SFP transceiver module designed for cost-effective and efficient optical data communication over a single strand of single-mode fiber. Here’s a detailed overview:


  • Hot-Pluggable SFP Package: Allows for easy installation and removal without disrupting network operations.
  • Data Rate: Supports data links up to 1.25 Gb/s, suitable for Gigabit Ethernet and 1G Fibre Channel applications.
  • Compliance: Meets the SFP Multi-Sourcing Agreement (MSA) and IEEE 802.3z standards, ensuring wide compatibility with various network equipment.
  • Single Fiber Operation: Utilizes 1550nm wavelength for transmission (TX) and 1310nm for reception (RX) over a single fiber, reducing fiber cabling costs by half compared to dual fiber solutions.
  • Connector: Available with single LC or SC connector for flexible connectivity options.
  • Power Supply: Operates on a single 3.3V power supply, ensuring low power consumption.
  • Digital Diagnostic Monitoring: Optionally supports real-time monitoring of transceiver parameters such as temperature, voltage, bias current, and optical power.
  • Environmental Compliance: ROHS compliant and lead-free, aligning with environmental safety standards.
  • EMI Reduction: Metal enclosure minimizes electromagnetic interference.


  • Product Series: Fiber Optical Transceiver
  • Part Number: OPB1250-5340xCR
  • Form Factor: BiDi SFP
  • Data Rate: 1.25 Gb/s
  • Wavelength: 1550nm-TX/1310nm-RX
  • Fiber Type: Single Mode Fiber (SMF)
  • Max Distance: 40 km
  • Optical Components: DFB laser transmitter and PIN photodiode receiver
  • Transmitter Power: -5 to 0 dBm
  • Extinction Ratio: Greater than 9 dB
  • Receiver Sensitivity: Less than -24 dBm
  • Receiver Overload: Greater than 0 dBm
  • Connector: Single LC or SC
  • Digital Diagnostic Monitoring: Available with or without
  • Operating Environment: 0°C to 70°C
  • Storage Environment: -40°C to 85°C
  • Weight: 0.03 kg


  • 1G Fibre Channel: Suitable for extended reach applications.
  • Gigabit Ethernet: Ideal for 1000BASE-BX Ethernet applications.
  • Switch to Switch Interface: Facilitates high-speed interconnects between switches.
  • Switched Backplane Applications: Enhances backplane data communication in network systems.
  • Broadband Aggregation and Wireless Infrastructure: Supports various broadband and wireless network infrastructure setups.
  • Router/Server Interface: Enables high-speed connectivity between routers and servers.
  • Other Optical Networking: Versatile for various other optical communication requirements.


The Optcore OPB1250-5340xCR BiDi SFP transceiver module is designed for high-performance, cost-effective optical communication over single-mode fiber. It supports Gigabit Ethernet and 1G Fibre Channel applications, providing up to 40 km transmission distance with a single fiber strand, reducing fiber infrastructure costs significantly. Its compliance with industry standards and optional digital diagnostic monitoring make it a reliable and efficient choice for various networking needs.

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