25G SFP28 SR CDR Optical Transceiver 850nm 100m LC DOM SMF

Basic Information
Place of Origin: Shenzhen, China
Brand Name: Gigaopto
Certification: CE, FCC, ROHS, ISO9001, ISO14000, MSDS, REACH, CP65, TUV, UL
Model Number: GTS-L08B1-01DC
Minimum Order Quantity: 1
Price: negotiable
Packaging Details: Single Package,10 or 20pcs per Tray,30 or 50 or 100pcs per box, 400 or 600pcs per carton
Delivery Time: 1-5 work days
Payment Terms: T/T, L/C
Supply Ability: 80,000pcs/month
Detail Information
Item Name: SFP28 Optical Transceiver Date Rate: 25.78Gbps
Max.Reach: 100-meter Warranty: 3 Years
Wavelength: 850nm Connector: Dual LC
Keywords: 25GBASE-SR, SFP28 SR
High Light:

25G SFP28 SR


CDR Optical Transceiver 850nm

Product Description

25Gbps SFP28 SR Optical Transceiver 850nm SMF 100m LC DOM



  • 850nm VCSEL laser and PIN photodiode
  • 100m over M5F MMF (50/125 um OM4);70m over M5E MMF (50/125um OM3);20m on MMF (50/125um OM2)
  • Single +3.3V power supply
  • Supports up to 25.78Gbps bit rate
  • Hot-pluggable SFP+ footprint
  • Real Time Digital Diagnostic Monitoring
  • Operating case temperature:Standard: 0 to +70°C
  • Compliant with SFP+ MSA and SFF-8472 with duplex LC receptacle
  • Compatible with RoHS




Gigaopto’s GTS-L08B1-01DC SFP28 SR transceivers are high performance,cost effective modules supporting data rate of 25.78Gbps for 25 Gigabit Ethernet applications.

The 25G SR transceiver consists of three sections: a VCSEL laser transmitter, a PIN photo diode integrated with a trans-impedance amplifier (TIA) and MCU control unit. That provides links up to 70m over OM3 or 100m over OM4 multi-mode fiber. All modules satisfy class I laser safety requirements.

The SFP28 SR transceivers are compatible with SFP Multi-Source Agreement(MSA),RoHS and IEEE802.3by standards.

Digital diagnostics functions are available through a 2-wire serial interface, as specified in SFF-8472.

Every 25G SR is tested in targeted host devices for superior performance, quality, and reliability before shipping.





Form Factor SFP28 Max Data Speed 25.78Gbps
Center Wavelength 850nm Max Reach 100m@OM4/70m@OM3
Connector Duplex LC Media Type MMF
Transmitter Type VCSEL Receiver Type PIN
TX Output Power -6.4~2.4dBm Receiver Sensitivity <-10.3dBm
Powerbudget 3.9dB Receiver Overload  >3dBm
Power Consumption ≤1W Extinction Ratio >2dB
DDM/DOM Supported FEC Function Support RS-FEC, FC FEC
CDR (Clock and Data Recovery) TX & RX Built-in CDR Temperature Range 0 to 70°C (32 to 158°F)
OEM/ODM Supported Warranty 3 years
Application 25GBASE-SR Ethernet Weight 30 gram
Compliance IEC/EN 61000-4-2,IEC-60825,FDA 21CFR 1040.10 and 1040.11,RoHS



Optical Specification


Parameter Symbol Unit Min Typ Max Notes
Signaling rate per lane   Gbps   25.78    
Center wavelength λc nm 840   860  
RMS Spectral Width SW nm     0.6  
Optical Output Power Pout dBm -6.4   2.4  
Extinction Ratio ER dB 2      
Optical Power OMA POMA dBm -8.5      

Average Launch Power of OFF


POFF dBm     -30  
Relative Intensity Noise RIN dB/Hz     -128  

Transmitter Eye mask definition

{X1,X2,X3, Y1,Y2,Y3}

    Compliant with IEEE 802.3by  
Signaling rate per lane   Gbps   25.78    
Center wavelength λIN nm 840   860  
Receiver Sensitivity RSENSE dBm     -10.3 Note1
Receiver Overload Pin dBm     3  
Receiver Reflectance Rfl dB     -12  
LOS De-Assert LOSD dBm     -13  
LOS Assert LOSA dBm -30      
LOS Hysteresis   dB 0.5   5  

Note1: Measured at ER>2dBm, PRBS 231 -1 test pattern, @25.78Gb/s, BER<5*5-5.


Electrical Specification


Parameter Symbol Unit Min Typ Max Notes
Supply Voltage VCC V 3.14   3.46  
Supply Current ICC A     0.3  
Power Consumption Pc W     1  
Signaling rate per lane   Gbps   25.78    
Input Differential Impedance RIN Ω 90 100 110  
Differential data input swing VIN mVp-p 200   600  
Signaling rate per lane   Gbps   25.78    
Output Differential Impedance ROUT Ω 90 100 110  
Differential data output swing VOUT mVp-p 300   900  
IIC communication
IIC Clock frequency - KHZ 100   400  





As a global provider of Brand Compatible Networking products, we have made significant investments over the past few years to support our customers, as well as in our physical infrastructure and test equipment platforms. Our overall trusted engineering and testing capabilities allow us to produce a large selection of Brand Compatible Transceivers. This GTS-L08B1-01DC 25G SFP28 SR optical transceiver is 100% compatible with mainstream optical devices. Below is a table of P/N correspondence for different brand modules. For more compatibility, please don't hesitate to contact us.


Corresponding Compatible Brand/Part Number
Brand Part Number Brand Part Number
Gigaopto GTS-L08B1-01DC Arista SFP-25G-SR
Cisco SFP-25G-SR-S HW 02311KNR
Dell 407-BBWK Juniper QFX-SFP-25G-SR
Chelsio SM25G-SR Brocade 25G-SFP28-SR
Avago AFBR-725SMZ Mellanox MMA2P00-AS
H3C SFP-25G-SR-MM850 Intel E25GSFP28SRX
Edge-Core ET7302-SR    



Package Dimensions


25G SFP28 SR CDR Optical Transceiver 850nm 100m LC DOM SMF 0



For more of our SFP28 25GBASE Transceiver series, please refer to the following form


P/N Description Wave Length Reach Fiber Type TX Power (dBm) Rx Sens. (dBm) DDM
GTS-L08B1-01DC 25G SR 850nm 100m MMF -6.4~2.4 < -10.3 Y
GTS-L08B1-03DC 25G eSR 850nm 300m MMF -6.4~2.4 < -10.3 Y
GTS-L08B1-01MC 25G CSR Dual Rate 10/25G 850nm 100m MMF -5~2.4 <-10.3 Y
GTS-L13B1-10DC 25G LR 1310nm 10km SMF -4.5~2.5 <-11.4 Y
GTS-L13B1-30DC 25G ER Lite 1310nm 30km SMF 0~6 <-19 Y
GTS-L13B1-40DC 25G ER 1310nm 40km SMF 0~6 <-19 Y
GTS-B23B1-10DC 25G BD LR 1270/1330nm 10km SMF -2~4 <-13 Y
GTS-B32B1-10DC 25G BD LR 1330/1270nm 10km SMF -2~4 <-13 Y
GTS-B23B1-20DC 25G BiDi eLR 1270/1330nm 20km SMF 0~6 <-14 Y
GTS-B32B1-20DC 25G BiDi eLR 1330/1270nm 20km SMF 0~6 <-14 Y
GTS-B23B1-40DC 25G BD ER 1270/1330nm 40km SMF 0~6 <-18 Y
GTS-B32B1-40DC 25G BD ER 1330/1270nm 40km SMF 0~6 <-18 Y
GTS-CxxB1-10DC 25G CWDM LR C27/C29/C31/C33/C35/C37 10km SMF 0~6 <-14 Y
GTS-CxxB1-10DC 25G CWDM LR C47/C49/C51/C53/C55/C57 10km SMF 0~6 <-14 Y
GTS-CxxB1-30DC 25G CWDM ER Lite C27/C29/C31/C33/C35/C37 30km SMF 0~6 <-19 Y
GTS-CxxB1-30DC 25G CWDM ER Lite C47/C49/C51/C53/C55/C57 30km SMF 0~6 <-19 Y
GTS-DxxB1-10DC 25G DWDM LR 100GHz C17~C61 10km SMF -2~6 <-12 Y



Contact Details

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