1.25G SFP CWDM ER 40km LC SMF Module
● Up to 1250Mb/s data links 
● CWDM DFB laser transmitter and PIN photo-detector
● Up to 40km on 9/125µm SMF
● Hot-pluggable SFP footprint
● Duplex LC/UPC type pluggable optical interface
● Low power dissipation
● Metal enclosure, for lower EMI
● RoHS compliant and lead-free
● Support Digital Diagnostic Monitoring interface
● Single +3.3V power supply
● Compliant with SFF-8472
● Case operating temperature
   Commercial: 0 ~ +70℃
   Extended: -10 ~ +80℃
   Industrial: -40 ~ +85℃
HTF’s 1.25G SFP CWDM 40km transceivers are compatible with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA), The transceiver consists of five sections: the LD driver, the limiting amplifier, the digital diagnostic monitor, the CWDM DFB laser and the PIN photo-detector .The module data link up to 40km in 9/125um single mode fiber. 

Switch to Switch Interface
Gigabit Ethernet
Switched Backplane Applications
Router/Server Interface
Other Optical Links

Compatible brands
HTF optional transceiver have been successfully tested with below brands:
HTF 1.25G-CWDM SFP 40km DOM LC SMF transceiver Module Compatible with the following brand and more
Cisco CWDM-SFP-xxxx HPE SFP40K-CWxxxx
Arista Networks SFP-1G-CW-xxxx Dell CWDM-SFP-xxxx
Juniper Networks SFP-GE40KCWxxxx-ET HW 0231A4-xxxx
Brocade E1MG-CWDM40-xxxx H3C SFP-GE-LH40-SMxxxxCW
Extreme Networks CWDM-SFP-xxxx NETGEAR CWDM-SFP-xxxx
Alcatel-Lucent SFP-GIG-27CWD40

Ordering Information
Part Number Package Data Rate Reach Wavelength(nm) TX output RX Sensitivity Power
HTSF-M1G85Mx SFP 1.25G 550m 850nm -9~-3dBm -17dBm 0.85W LC
HTSF-M1G31Mx SFP 1.25G 550m 1310nm -9~-3dBm -19dBm 0.85W LC
HTSF-M1G31Fx SFP 1.25G 2km 1310nm -9~-3dBm -19dBm 0.85W LC
HTSF-S1G31Lx SFP 1.25G 10km 1310nm -9~-3dBm -20dBm 0.85W LC
HTSF-S1G31Ex SFP 1.25G 40km 1310nm -5~0dBm -24dBm 0.95W LC
HTSF-S1G55Ex SFP 1.25G 40km 1550nm -5~0dBm -24dBm 0.95W LC
HTSF-S1G55Zx SFP 1.25G 80km 1550nm 0~5dBm -26dBm 0.95W LC
HTSF-S1G55Xx SFP 1.25G 100km 1550nm 0~5dBm -28dBm 0.95W LC
HTSF-S1G55Yx SFP 1.25G 160km 1550nm 1~6dBm -33dBm 0.95W LC
HTSF-C1GxxLx SFP 1.25G 20km CWDM -9~-3dBm -20dBm 1W LC
HTSF-C1GxxEx SFP 1.25G 40km CWDM -5~0dBm -24dBm 1W LC
HTSF-C1GxxZx SFP 1.25G 80km CWDM 0~5dBm -26dBm 1W LC
HTSF-C1GxxXx SFP 1.25G 120km CWDM 0~5dBm -31dBm 1W LC
HTSF-C1GxxYx SFP 1.25G 160km CWDM 1~6dBm -33dBm 1W LC
HTSF-1D1GCxxZx SFP 1.25G 80km DWDM 0~4dBm -26dBm 1W LC
HTSF-1D1GCxxXx SFP 1.25G 120km DWDM 0~5dBm -30dBm 1W LC
HTSF-5D1GCxxZx SFP 1.25G 80km DWDM 0~4dBm -26dBm 1W LC
HTSF-5DGCxxXx SFP 1.25G 120km DWDM 0~5dBm -30dBm 1W LC

If you have customized requirement for the TX output, RX Sensitivity etc, contact HTF sales online or leave message. HTF team will support you within 24 hours.
Submit the following information then can download and know more