SFP fiber transceiver extra digital SFP1310SC 1.25G Tx1310nm/Rx1550nm 20 km

The extra digital SFP1310SC is a single‑fiber WDM SFP transceiver module that supports 1.25 Gbit/s data rate. It transmits at 1310 nm and receives at 1550 nm over an SC duplex receptacle and is designed for up to 20 km single‑mode fiber links. The module is compliant with the SFP MSA and SFF-8472 specifications, provides digital diagnostic monitoring (DDM) with internal or external calibration options, and operates from a single +3.3 V supply within the standard industrial temperature range.

Advantages

The SFP1310SC offers a compact, hot‑swappable SFP form factor with dual data‑rate support (1.25 Gbps / 1.0625 Gbps) and a 20 km transmission reach on single‑mode fiber. It integrates an FP laser transmitter, a PIN photodiode with trans‑impedance amplifier and MCU control for monitoring and Class I laser safety compliance. The module is RoHS compatible and supports both internal and external calibration for its digital diagnostic functions.

Suitable for

• Gigabit Ethernet links
• Fiber Channel connections
• Switch‑to‑switch and router/server interfaces
• Switched backplane applications and other optical transmission systems

Key specifications

• Manufacturer: extra digital, MPN: SFP1310SC, EAN: 4775342530824
• Form factor: SFP (LC duplex receptacle)
• Wavelength: Tx 1310 nm / Rx 1550 nm (single‑fiber WDM)
• Data rate: 1.25 Gbps (also supports 1.0625 Gbps)
• Maximum reach: up to 20 km on single‑mode fiber (SMF)
• Transmitter: FP laser; Receiver: PIN photodiode with TIA
• Power supply: +3.3 V single supply
• Monitoring: Digital Diagnostic Monitoring (internal or external calibration)
• Standards: SFP MSA, SFF‑8472, RoHS compliant
• Operating case temperature: -40 °C to +85 °C (standard)

How to use

Install the SFP1310SC into an available SFP slot on compatible network equipment with the module’s ejector or release mechanism. Connect the single‑fiber link using an appropriate WDM fiber patch (SC connector) so that the 1310 nm transmit and 1550 nm receive paths are matched to the far‑end module. Ensure the host device provides a +3.3 V supply and supports SFP behavior; the device will expose digital diagnostic data via the SFF‑8472 interface if the host supports DDM. Observe manufacturer instructions for handling ESD and optical safety.

Recommendations

Use this SFP module for point‑to‑point single‑fiber WDM links where compact SFP form factor and 20 km reach are required. Verify wavelength pairing with the remote transceiver, maintain clean SC connectors, and operate within the specified temperature and voltage ranges to ensure reliable performance.