25G SFP28 LR

This 25G SFP28 LR module is built for reliable, medium-reach 25 Gigabit Ethernet links. With a reach of up to 10 kilometers over standard single‑mode fiber, it fills the gap between short‑range multimode optics and longer‑haul solutions, making it a solid choice for campus backbones, data center interconnects, and metro access networks.

The module operates at a data rate of up to 25.78Gbps using a 1310nm transmitter and a high‑sensitivity PIN photodiode with a transimpedance amplifier (TIA). The LC duplex connector keeps cabling simple-just one pair of single‑mode fibers. Power consumption stays under 1.2W, which is quite efficient for a 10km rated module, helping to keep your switch chassis cool even in dense deployments.

It is Class 1 laser safety certified and fully hot‑pluggable via a standard 20‑pin connector. The module complies with SFF‑8472, giving you digital diagnostic monitoring (DDM) access to real‑time parameters such as temperature, voltage, and optical power. It runs on a single 3.3V power supply and operates across a commercial temperature range of 0°C to 70°C. ROHS compliance rounds out the package.

For network engineers who need to connect buildings on a large campus or extend 25G links between data halls without moving to more expensive 40km optics, this 25G SFP28 LR delivers a practical balance of performance, reach, and power efficiency. It is a straightforward, dependable workhorse for any 25G single‑mode fiber infrastructure.

Q: Where would I typically use this 25G SFP28 LR module instead of a shorter‑range SR module?
A: You would choose this LR module when your link distance exceeds the 100‑300m limit of multimode‑fiber SR optics. Typical scenarios include connecting two buildings on a large campus, linking a data center to a nearby disaster‑recovery site, or providing 25G uplinks in a metro access network where fiber runs can be several kilometers long.

Macrochip invested 350 million RMB to build a 3500 square meter cleanroom facility in Quanzhou, China, which includes over 100 sets of various instruments and equipment. It can perform various processes such as chip testing, die attach or die bonding, wire-bonding, alignment, burn-in, module ASSY, and module testing. Macrochip has an annual production capacity of 200,000 high-speed optical modules.

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