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1.25Gbps SFF 1310nm 40km Single-Mode Optical Transceiver

Model#: SFF-1G31-40-xx
Standard Temperature: 0~70℃
Extended Temperature: -20~85℃
Industrial Temperature: -40~85℃
The SFF transceivers are small form factor, low power, high performance module for duplex optical data communications such as GBE, FE, SONET OC-3 / SDH STM-1 and OC-12 / STM-4. This module is designed for single-mode fiber and operates at a nominal wavelength of 1310nm. The transmitter section uses a multiple quantum well laser and is a class 1 laser compliant with International Safety Standard IEC-60825. The receiver section uses an integrated InGaAs detector preamplifier (IDP) mounted in an optical header and a limiting post-amplifier IC. A LVPECL logic interface simplifies interface to external circuitry.
Key Features
Duplex LC Single-Mode TransceiverOperating Data Rate up to 1.25Gbps40km with 9/125µm SMFSingle 3.3V Power supplyLVPECL Signal Input/OutputLVTTL Transmitter Disable InputLVPECL/LVTTL Signal Detect OutputSmall Form Factor 2X5 pin PackageClass 1 FDA and IEC60825-1 Laser Safety CompliantAverage Output Power: -2~+3dBmReceiver Sensitivity: -24dBm
Gigabit bit EthernetFiber Channel LinksOther Optical Link
Ordering Information
Pa No. Data Rate (Gbps) Wavelength (nm) TX Power (dBm) Re Sens. (dBm) Transmission Distance Fiber Type Connector Type Temp. Range Digital Diagnostics
SFF-1G85-5M-xx ≤1.25 850     550m MMF LC Com./Ind. No
SFF-1G31-2-xx ≤1.25 1310 -9~-3 ﹤-21 2km MMF LC Com./Ind. No
SFF-1G31-10-xx ≤1.25 1310 -9~-3 ﹤-21 10km SMF LC Com./Ind. No
SFF-1G31-20-xx ≤1.25 1310 -8~-3 ﹤-22 20km SMF LC Com./Ind. No
SFF-1G31-30-xx ≤1.25 1310 -5~0 ﹤-24 30km SMF LC Com./Ind. No
SFF-1G31-40-xx ≤1.25 1310 -2~+3 ﹤-24 40km SMF LC Com./Ind. No
SFF-1G55-40-xx ≤1.25 1550 -5~0 ﹤-24 40km SMF LC Com./Ind. No
SFF-1G55-60-xx ≤1.25 1550 -2~+3 ﹤-24 60km SMF LC Com./Ind. No
SFF-1G55-80-xx ≤1.25 1550 0~+5 ﹤-24 80km SMF LC Com./Ind. No
SFF-1G55-100-xx ≤1.25 1550 0~+5 ﹤-28 100km SMF LC Com./Ind. No
SFF-1G55-120-xx ≤1.25 1550 0~+5 ﹤-32 120km SMF LC Com./Ind. No
SFF-1G55-160-xx ≤1.25 1550     160km SMF LC Com./Ind. No
Notes xx means compatible brand. (For example: CO= Cisco, JU=Juniper, FD=Foundry, EX=Extreme, NE=Netgear,etc. The two characters are sho for compatible brand.)
Antistatic bag Packed on pallets in a box(Default Customer Options) Specific Labels as Request Seperate white Box for each transceiver
Combining our extensive design and engineering capability in optical transceiver industry, with our competitive advantages from integrated manufacturing capability, internal supply chain, and cost competitive and scalable operation infrastructure, Fiberinthebox provides OEM, ODM, and contract manufacturing service to world leading customers with our manufacturing facilities in China.We are also mainly engaged in providing complete sets of optoelectronic device solutions to gain more brand extensions and influence for Fiberinthebox in the world. OEM/ODM order is available We can supply SFF-1G31-40-xx according to your requirements, and design SFF-1G31-40-xx label and packaging for your company. We welcome any inquiry for customized SFF optical transceiver.
Order Procedure
Please contact us with any special requirements you may have, we can help you create a custom solution to meet almost any application. Our engineer will review the project and provide a quotation within 1-2 business days.
a. Email ( ) us a rough sketch to a detailed drawing.
b. Our engineer will review the project and provide a quotation within 24 hours.
c. We can arrange production as low as 1 piece and as high as 1,000 pieces in 1~4 business days once an order is placed.
Our Factory
Production Environment
Production Environment
Component Quality Inspection
Device Assembly
Standardized Production Line
Standardized Production Line
Environment Testing
Environment Testing
End Product Testing
Optic Module Transmission Distance Testing
Compatible Testing
Brand Compatibility Testing

International Express: Fedex, DHL, UPS, TNT and EMS.If you have another preferred carrier, please notify us in advance.
FedEx Overnight: It will take 1-3 business days (weekends and holidays excepted) for delivery.
DHL: It will take 2-4 business days (weekends and holidays excepted) for delivery. For Spain, Italy, Brazil and some other countries, items will take longer time to arrive due to customs clearance period.
Save Cost By Buying SFF transceivers From Original Manufacturer Fiberinthebox Directly.
Fiberinthebox is an professional manufacturer & supplier of SFF transceivers. All of our SFF transceivers are tested in-house prior to shipping to guarantee that they will arrive in perfect physical and working condition. We guarantee SFF transceivers to work in your system and all of our SFF transceivers come with a lifetime advance replacement warranty. If you have questions about SFF optics, please feel free to contact us at .