Fully compatible Carritech alternative
Carritech Optics can offer CT-SFP28-LR as a fully compatible, high-quality alternative to Extreme 25G-LR-SFP10KM. This Carritech alternative is matched against the key optical specifications and can be programmed and tested for your network requirements.
Carritech part number: CT-SFP28-LR
25G SFP28 1310NM 10KM
Carritech CT-SFP28-LR is a 25Gbps SFP28 optical transceiver designed for single-mode fiber links up to 10 km. Featuring a 1310 nm DML laser and PIN/TIA receiver, it supports 25GBASE-LR Ethernet with low power consumption and full digital diagnostics for high-speed data center and carrier networks.
Quality assured Tested, compliant and backed by lifetime warranty.
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The hardware listed below is a selection of key popular equipment, not a complete compatibility list. This transceiver may also be compatible with many other hardware models. Contact us and we can check the exact hardware you need.
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The 25Gbps SFP28 LR Transceiver is a high-performance module designed for long-distance data communication over single-mode fiber (SMF) up to 10 kilometers. It features a 1310nm DML laser transmitter and a PIN/TIA receiver, supporting a data rate of 25.78Gbps. This module is compliant with the SFP28 MSA, SFF-8472, and IEEE 802.3cc standards, making it suitable for applications such as data center backbones, Ethernet switches, high-speed servers, and SAN networks.
Operating on a single +3.3V power supply with power consumption under 1.2W, the transceiver ensures energy-efficient performance. It is available in both commercial (0°C to +70°C) and industrial (-40°C to +85°C) temperature ranges, making it versatile for various environments. The hot-pluggable design with a duplex LC connector enables seamless integration into networking systems, while RoHS compliance emphasizes its environmentally friendly design.
Optical performance includes a center wavelength range of 1290nm to 1330nm for the transmitter, with an average optical power output of -7dBm to +2dBm. The extinction ratio is maintained at 3.5dB, ensuring robust signal clarity. The receiver supports wavelengths from 1260nm to 1360nm, with a sensitivity of -12dBm and an overload threshold of +2dBm. The transceiver includes Loss of Signal (LOS) detection to enhance diagnostic capabilities.
Electrically, the module supports a differential impedance of 100Ω and input/output swing differentials from 90mV to 450mV. Advanced features like Transmit Disable (TX_DISABLE) and Fault Indicators allow precise control and fault management. Digital diagnostics provide real-time monitoring of parameters such as temperature, voltage, bias current, and optical power, enabling proactive maintenance and reliability.
In summary, the 25Gbps SFP28 LR Transceiver is a reliable and energy-efficient solution for high-speed optical communication over medium distances. Its compliance with industry standards, advanced diagnostic capabilities, and robust design make it an essential component for modern telecommunications and data center infrastructures.
This hot-pluggable transceiver supports data rates up to 25.78 Gbps and complies with IEEE 802.3cc 25GBASE-LR, SFP28 MSA, SFF-8431, SFF-8432, and SFF-8472 standards. It operates up to 10 km over 9/125 µm SMF using a duplex LC connector. The design integrates a 1310 nm DML transmitter, PIN/TIA receiver, and internal CDR on both Tx and Rx paths for signal integrity. Power consumption is <1.2 W on a single 3.3 V supply, with commercial (0 °C to +70 °C) and industrial (−40 °C to +85 °C) operating options. Integrated DDMI provides real-time monitoring of temperature, voltage, bias, Tx, and Rx optical power.
Key Parameters
| Specification | Value | Notes |
|---|---|---|
| Form factor / connector | SFP28 (hot-pluggable), LC duplex | SFP28 MSA |
| Data rate | Up to 25.78 Gbps | Supports rate adaptation |
| Reach | Up to 10 km SMF | — |
| Tx wavelength | 1290 – 1330 nm (1310 nm nominal) | DML laser |
| Tx optical power | −7 to +2 dBm | Average |
| Tx OMA | ≥ −4 dBm | — |
| Extinction ratio | ≥ 3.5 dB | — |
| Tx off power | ≤ –30 dBm | — |
| Side-mode suppression | ≥ 30 dB | — |
| Receiver type | PIN/TIA photodiode | — |
| Receiver sensitivity | ≤ –12 dBm | BER ≤ 5 × 10⁻⁵ at 25.78 Gbps |
| Receiver overload | +2 dBm max | — |
| LOS assert/de-assert | −30 dBm / −17 dBm | 0.5 dB hysteresis |
| Supply voltage | 3.15 – 3.45 V | Single 3.3 V supply |
| Power consumption | <1.2 W (Typ. 350 mA) | — |
| Diagnostics | Temp., bias, Tx/Rx power, Vcc | Digital diagnostics (DDMI) |
| Operating case temp. | 0 °C to +70 °C (commercial), −40 °C to +85 °C (industrial) | — |
| Compliance | IEEE 802.3cc 25GBASE-LR, SFF-8431/8432/8472, RoHS, EN 60825 Class 1 | Standards compliant |
Carritech Optics can offer a fully compatible, high-quality alternative to Extreme 25G-LR-SFP10KM.
Carritech part number: CT-SFP28-LR
At Carritech, we pride ourselves on our exceptional service and commitment to meeting our customers’ needs. Our extensive range of SFP transceivers, including the 25G-LR-SFP10KM, is designed to cater to various requirements, ensuring that you receive the best solutions for your projects. We understand the importance of timely delivery, and our efficient processes are geared towards providing you with the products you need as quickly as possible. Our dedicated team works tirelessly to ensure that your orders are processed and dispatched promptly, so you can rely on us for swift and reliable service.
We recognise that every project is unique, and our flexible approach allows us to adapt to your specific needs. Whether you require immediate delivery or have more complex requirements, we are here to support you every step of the way. Our commitment to customer satisfaction means that we go above and beyond to ensure that you receive your SFP transceivers in a timely manner, without compromising on quality. Trust Carritech to deliver the solutions you need, when you need them.
At Carritech Optics, we stand by the quality and reliability of our optical transceivers. That’s why we proudly offer a lifetime warranty on all products as a testament to our commitment to excellence and customer satisfaction.
Our lifetime warranty provides comprehensive coverage for the entire lifecycle of your optical transceivers, ensuring you experience complete peace of mind when choosing Carritech Optics. The warranty covers:
Should you ever need to make a warranty claim, our team is here to assist you. Simply contact our support team with your product details, and we’ll guide you through a quick and hassle-free process to resolve the issue.
Carritech Optics is dedicated to providing high-quality optical solutions that you can trust for the long haul. With our lifetime warranty, you can confidently invest in our products, knowing that we’re with you every step of the way.
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