Hot Pluggable 25G SFP28 ER 40km Ethernet Fiber Transceiver Module

Basic Information
Place of Origin: Shenzhen, China
Brand Name: Gigaopto
Certification: CE, FCC, ROHS, ISO9001, ISO14000, MSDS, REACH, CP65, TUV, UL
Model Number: GTS-L13B1-40DC
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: 20,000pcs/Month
Detail Information
Product Name: SFP28 25G ER Data Rate: 25Gbps
Interface: Duplex LC Reach: 40km
Warranty: 3-year Wavelength: 1310nm
Keywords: 25GBASE-ER 40km, Gigabit Fiber Optical Transceiver
High Light:

25G QSFP28 40km


25G SFP28 ER


Ethernet Fiber Transceiver Module

Product Description

40km Single Mode SFP28 25G ER 1310nm Ethernet Fiber Transceiver Module EML + APD Duplex LC DOM


  • 2-wire interface for management
  • 25.78Gb/s bit rates
  • EML transmitter, APD photo-detector
  • Up to 40km on SMF
  • Operating case temperature Range: 0~70°C
  • Hot-Pluggable
  • RoHS complaint
  • Power Supply :+3.3V
  • digital diagnostic monitoring interface for optical transceivers
  • Duplex LC connector
  • Cost effective SFP28 solution, enables higher port densities and greater bandwidth
  • Low Power consumption<1.5W
  • specifications compliant with SFF 8472




Gigaopto’s GTS-L13B1-40DC transceiver provides 25GBase-ER throughput up to 40km distance for optical data communications such as 25G Ethernet and CPRI Option 10. It is with the SFP+ 20-pin connector to allow hot plug capability.

This 25G SFP28 ER module is designed for single mode fiber and operates at a nominal wavelength of 1310 nm. The transmitter section uses a 1310nm multiple quantum well DFB laser and is a class 1 laser compliant according to International Safety Standard IEC-60825. The receiver section uses an integrated InGaAs detector preamplifier (IDP) mounted in an optical header and a rate selection clock data recovery (CDR) IC.

Compatible with SFF-8431, SFF-8432, it supports Wireless (CPRI/eCPRI), 25G Ethernet ER and 25G Fiber Channel protocol. It has built-in clock and data recovery (CDR). Digital diagnostic functions are available via an I2C, as specified in SFF-8472 and SFF-8402.





Form Factor SFP28 Max Data Rate 25.78Gbps
Wavelength 1310nm Max Reach 40km
Connector Duplex LC Cable Type SMF
Transmitter Type EML 1310nm Receiver Type APD
TX Power 0~6dBm Receiver Sensitivity <-19dBm
Powerbudget 19dB Receiver Overload >-4dBm
Power Consumption ≤1.5W Extinction Ratio >4dB
Diagnostic Supported FEC Function Not Supported
CDR TX & RX Built-in CDR Temperature Range 0 to 70°C (32 to 158°F)
OEM/ODM Supported Warranty 3 years
Application 25G Ethernet,25G CRPI
Compliance IEC/EN 61000-4-2,IEC-60825,FDA 21CFR 1040.10 and 1040.11,RoHS





  • Computer cluster cross-connect
  • Inter Rack Connection
  • Custom high-speed data pipes
  • High-speed storage area networks


Optical and Electrical Characteristics


Parameter Symbol Min Typical Max Unit Note
Centre Wavelength λc 1295   1310 nm  
Average Launched Power PO 0   +6.0 dBm  
Average Launched Power(Laser Off) Poff - - -30 dBm  
Spectrum Bandwidth(-20dB) Dl - - 1 nm  
Side-Mode Suppression Ratio SMSR 30 - - dB  
Transmitter and Dispersion Penalty TDP     1 dB  
Extinction Ratio ER 6   - dB  
Output Eye Mask Compliant with IEEE 802.3cc   2
Input Optical Wavelength λIN 1272.55 - 1310.19 nm  
Receiver Sensitivity-AVG PSens     -19 dBm 1
Receiver Sensitivity-OMA PSens-OMA     -18.2 dBm 1
Input Saturation Power (Overload) PSAT -4 - - dBm 1
Receiver Reflectance       -26 dB  
Los Of Signal Assert PA -30 - - dBm  
Los Of Signal De-assert PD - - -20 dBm  
LOS -Hysteresis PHys 0.5     dB  


1. BER≤5x10-5


High Speed Electrical Interface Characteristics


Parameter Symbol Min Typical Max Unit Notes
Differential Input Swing Vin (pp) 190   700 mV  

Differential Input Return Loss (Min)


RLd (f)

9.5–0.37f, 0.01≤f<8



4.75–7.4log10(f/14), 8 ≤f<19

Differential to Common Mode Input Return Loss (Min)


RLdc (f)

22-20(f/25.78), 0.01≤f<12.89



15-6(f/25.78), 12.89≤f<19
Differential Termination Mismatch Tm - - 10 %  
Eye Width Ew - - 0.46 UI  
Applied Pk-Pk Sinusoidal Jitter Ppj Per IEEE 802.3bm    
Eye Height Eh - 95 - mV  
Dc Common Mode Voltage DCv -350 - 2850 mV  
Differential Data Output Swing Vout(pp) 300 - 850 mV  
Eye Width Ew 0.57 - - UI  
Vertical Eye Closure Vec - - 5.5 dB  

Differential Output Return Loss (Min)



9.5–0.37f, 0.01≤f<8



4.75–7.4log10(f/14), 8 ≤f<19

Common To Differential Mode Conversion Return Loss (Min)



22-20(f/25.78), 0.01≤f<12.89



15-6(f/25.78), 12.89≤f<19
Differential Termination Mismatch Tm - - 10 %  
Transition Time, 20% To 80% Tr/Tf 12 - - ps 20%~80%


Low Speed Electrical Interface Characteristics


Parameter Symbol Min. Typical Max Unit Note
Transmitter Fault Output-High VFaultH 2 - Vcc+0.3 V  
Transmitter Fault Output-Low VFaultL 0 - 0.8 V  
Transmitter Disable Voltage- High VDisH 2 - Vcc+0.3 V  
Transmitter Disable Voltage- Low VDisL 0 - 0.8 V  
LOS Output Voltage-High VLOSH 2 - Vcc+0.3 V  
LOS Output Voltage-Low VLOSL 0 - 0.8 V  





All of Gigaopto's GTS-L13B1-40DC optical transceiver modules are open sourced, can be coded to be fully compatible with mainstream devices, please refer to the following form, for more products compatibility, please feel free to contact us.


Corresponding Compatible Brand/Part Number
Compatible Brand Part Number Compatible Brand Part Number
Gigaopto GTS-L13B1-40DC Arista SFP-25G-ER40
Cisco SFP-25G-ER-S Brocade 25G-SFP28-ER40
Mellanox SFP28-25GER-31    



For More of our 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

WhatsApp : +8615989585901