25G SFP28 SR Optical Transceiver – 850nm 100m LC MMF

SVNK 25G SFP28 SR Optical Transceiver (850 nm, MMF)

The SVNK 25G SFP28 SR Optical Transceiver is a high-performance, short-reach module designed for 25 Gigabit Ethernet, telecom, and data center interconnect applications. Operating at a nominal wavelength of 850 nm, it supports transmission distances of up to 70 m over OM3 multimode fiber and 100 m over OM4 multimode fiber, making it ideal for intra-rack and inter-rack connectivity in high-density network environments.

This transceiver supports data rates up to 25.78125 Gb/s and integrates an advanced 850 nm VCSEL laser transmitter with a high-sensitivity PIN photodiode receiver. Built-in Clock and Data Recovery (CDR) on both transmit and receive paths ensures excellent signal integrity, low jitter, and reliable high-speed operation.

Housed in a compact, hot-pluggable SFP28 form factor, the module is optimized for low power consumption (<1 W), high port density, and thermal efficiency. It also supports Digital Optical Monitoring (DOM/DDM) via the I²C interface, enabling real-time performance monitoring and proactive maintenance.

Key Features

• Hot-pluggable SFP28 form factor
• Supports data rates up to 25.78125 Gb/s
• Maximum reach: 70 m (OM3) / 100 m (OM4) MMF
• 850 nm VCSEL laser transmitter
• High-sensitivity PIN photodiode receiver
• Integrated CDR on both TX and RX
• Duplex LC optical connector
• Power dissipation < 1 W
• Single 3.3 V power supply
• Commercial operating temperature: 0°C to 70°C
• Built-in Digital Diagnostic Monitoring (DOM/DDM)
• RoHS-6 compliant (lead-free)