SFP Transceiver: ULTIMODE SFP-203/5G LC (one single-mode fiber up to 20km)

Code: L1418
Price Disc. Quantity Validity
€7.51 0 % from 1 piece
Optical SFP module ULTIMODE-203/5G LC cooperates with a single-mode fiber up to 20 km long, at data transmission speeds up to 1.25 Gb/s.


3-year warranty.



ULTIMODE optical modules are compliant with SFP (Small Form-factor Pluggable) standard. ULTIMODE SFP-203/5G LC cooperates with a single-mode fiber and transmits data at speeds up to 1.25 Gb/s. This is made possible through the use of wavelength-division multiplexing (WDM) technology that multiplexes two optical carrier signals on a single optical fiber by using different wavelengths, which reduces installation costs. The maximum transmission range is 20 km.
The optical signal is transmitted in the II transmission window (1310 nm) and received in the III transmission window - 1550 nm. The complementary module to SFP-203/5G LC is the transceiver SFP-205/3G L1417 which transmits data in the III transmission window and receives it in the II (1310 nm).
This type of ULTIMODE SFP transceivers cooperates with LC connector terminating a single-mode fiber. LC connectors are currently the most popular optical coupling elements due to simple matching (push-pull coupling with a snap) and rectangular cross-section allowing dense packing of the connectors on the panel.
Gigabit (GbE) SFP modules of ULTIMODE series cooperate with media converters and majority of switches and routers with SFP slots (also with CISCO equipment) compatible with IEEE 802.3z 1000Base-FX standard. An example of media converter cooperating with such modules is M-100G/SFP L1301.
The use of media converters with the possibility of exchanging SFP modules is particularly advantageous when it comes to network configuration changes. Instead of replacing the entire unit/s, it is sufficient to exchange the SFP transceiver/s.
Distinguishing features
  • bidirectional communication via single fiber (WDM),
  • cooperation with single-mode networks,
  • transmission speed up to 1.25 Gb/s (IEEE 802.3z 1000Base-FX),
  • transmission range up to 20 km,
  • optical connector: LC.
Ethernet media converter M-100G/SFP cooperates with GbE SFP transceivers. Below - a list of Gigabit SFP modules.
Gigabit SFP modules of ULTIMODE series
Name: SFP-023G SFP-203G SFP-203/5G SFP-205/3G FP-203/5G SFP-205/3G
Code: L1405 L1415 L1416 L1417 L1418 L1419
Fiber type: MM SM
Range: 2 km 20 km
Data rate: 1.25 Gb/s
Tx/Rx [nm]: 1310/1310 1310/1550 1550/1310 1310/1550 1550/1310
Connectors: 2xLC 1xSC 1xLC



Product type SFP module
Name SFP-203/5G
Module type SFP
Transmission type WDM – 1 fiber
Fiber optic type Single-mode
speed MBps 1000
connector type LC/PC simplex
Maximum transmission range km 20
wavelength Tx nm 1310
Rx nm 1550
Transmitter power dBm -8...-3
Receiver sensitivity dBm > -22
Power supply DCV 3.3 (from SFP port)
Operating temperature °C 0...+70