Optcore 1.25G pair SFP BIDI LC 20KM


A pair of SFP 1.25G Single Fiber (bi-directional) MF, Tx:1310nm/Rx:1550nm, 20km, LC or SC Compatible with Cisco, Mikrotik, HP, Juniper, Huawei, Extreme.

20KM range. Sold as a pair.

2 years warranty

SKU: STI-OPB1250-3520-5320CDR Category:


This SFP+ BIDI transceiver  uses a 1310nm FP laser that is a class 1 laser compliant according to International Safety Standard IEC 60825. The receiver section uses a high-speed 1550nm InGaAs PIN photodiode (PD) integrated with a trans-impedance preamplifier (TIA). The BiDi SFP module is fully compliant with SFP Multi-Sourcing Agreement (MSA) and SFF-8472. For further information, please see SFP MSA and SFF-8472 standard.

A OPB1250-3520xCR is always connected with a OPB1250-5320DCR with a single fiber.


• Hot-Pluggable SFP package
• Up to 1.25Gb/s data links
• Compliant with SFP MSA standard
• Compliant with IEEE 802.3z
• Single LC or SC Connector
• Single 3.3V power supply
• Low power dissipation
• Metal enclosure provides lower EMI
• ROHS compliant and Lead Free

Additional information

Weight 0.3 kg
Dimensions 1 × 3 × 2 cm


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