The P1SM10 is to be used with Single-Mode Fiber for distances up to 20Km. It is recommended to pair (two per fiber link) remote and head-end with same SFP module. Conforms to (SFP) Small Form-Factor Pluggable Multi-Source Agreement (MSA). Singlemode Fiber Optic Transmitters, Receivers, Transceivers are available at Mouser Electronics. SFP (Small Form-factor Pluggable) transceivers are essential components in modern fiber optic networks, enabling network devices such as switches, routers, and servers to transmit and receive data over optical fiber. By converting electrical signals into optical signals—and vice versa—SFP. Discover our diverse selection of singlemode transceiver modules, which have been specially developed for long-lasting, reliable and powerful fibre optic communication.