25G SFP28 ER Optical Transceiver – 1310nm 40km LC SMF

SVNK 25G SFP28 ER Optical Transceiver (40 km, SMF)

The SVNK 25G SFP28 ER Optical Transceiver is a high-performance, long-reach module engineered for 25 Gigabit Ethernet, telecom, and data center interconnect applications. Operating at a wavelength of 1310 nm, it supports transmission distances of up to 40 km over single-mode fiber (SMF), making it ideal for metro access, enterprise backbones, and cloud aggregation networks.

Fully compliant with SFP28 MSA, SFF-8472 Rev 12.2, SFF-8431 Rev 3.0, and SFF-8432, the transceiver ensures seamless interoperability with leading network equipment. It features a high-quality DFB laser transmitter and a high-sensitivity PIN photodiode receiver, combined with integrated CDR (Clock and Data Recovery) on both transmit and receive paths to deliver excellent signal integrity, low jitter, and stable long-distance performance.

The module supports 25.78 Gb/s data rates and is compatible with 25G Ethernet as well as CPRI and eCPRI standards, enabling flexible deployment across mobile fronthaul, enterprise, and hyperscale environments. Built-in Digital Optical Monitoring (DOM/DDM) enables real-time diagnostics and proactive network management.

Housed in a compact, hot-pluggable SFP28 form factor with a 20-pin edge connector, the transceiver is optimized for low power consumption, thermal stability, and high-density switch platforms.

Key Features

• Hot-pluggable SFP28 form factor
• Supports data rates up to 25.78 Gb/s
• Maximum link length up to 40 km over SMF
• 1310 nm CWDM DFB laser transmitter
• High-sensitivity PIN photodiode receiver
• Integrated CDR on both TX and RX
• Duplex LC optical connector
• Power dissipation < 1.5 W
• Single 3.3 V power supply
• Commercial/industrial operating temperature: 0°C to 70°C
• Fully compliant with SFP28 MSA, SFF-8472, SFF-8431, SFF-8432
• Supports 25G Ethernet, CPRI, and eCPRI
• Built-in Digital Diagnostic Monitoring (DOM/DDM)
• RoHS 2011/65/EU compliant (lead-free)