10G SFP+ LR 1310nm 20km Transceiver

SKU: SFP-SM31TG-20DC

Product Highlights

Supports up to 10.7Gbps bit rates
Hot-pluggable SFP+ footprint
1310nm DFB laser and PIN photodiode, Up to 20km for SMF transmission
Compliant with SFP+ MSA and SFF-8472 with duplex LC receptacle
Compatible with RoHS
Single +3.3V power supply
Real Time Digital Diagnostic Monitoring

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10.3G SFP+ Transceiver 1310nm 20km (Commercial / Industrial Temp Optional)

The SFP‑SM31TG‑20Dx series is cost‑effective 10G SFP+ single‑mode optical transceiver, supporting bit‑rate 1.0‑10.7Gbps, typical 10.3125Gbps. It adopts 1310nm DFB laser transmitter and PIN photodiode with TIA preamplifier for up to 20 km transmission over SMF. Two variants available: SFP‑SM31TG‑20DC commercial temp 0‑70℃, SFP‑SM31TG‑20DI industrial wide temp ‑40~+85℃. Hot‑pluggable SFP+ footprint with duplex LC receptacle, supporting real‑time DDM digital diagnostic monitoring complying with SFF‑8472. Powered by single +3.3 V supply, compliant with Class I laser safety, SFP+ MSA and RoHS. Suitable for 10GBASE‑LR / LW, LTE transmission, campus and metro 20km single‑mode fiber interconnection.

Technical Specification

Vendor Name	FIBERTOP	FIBERTOP Part Number(s)	SFP-SM31TG-20Dx
Transceiver Type	LR	Reach	20km
Wavelength	1310nm	Form Type	SFP+
Speed Description	10G	Media	SMF
Connector	Duplex LC	Extinction Ratio	> 3.5 dB
TX Power	-3 ~ 2 dBm	Receiver Sensitivity	< -14.4 dBm
Applications	10Gbps Optical systems, 10GBASE-LR at 10.3125Gbps, Other Optical links	Environment	Operating: 0°C to 70°C Storage:-40°C to 85°C

Frequently Asked Questions

Q: What is difference between DC and DI version?

A: SFP‑SM31TG‑20DC is commercial temp for indoor data‑center environment (0‑70℃). SFP‑SM31TG‑20DI is industrial grade, ‑40~+85℃ for outdoor and industrial harsh conditions.

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