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The 1.25Gbps SFP Optical Transceiver is a high-performance module designed for ultra-long-range data communication over single-mode fiber (SMF) up to 160 kilometers. Housed in an SFP package with an LC connector, the transceiver employs a 1550nm DFB laser and APD photodetector for superior optical performance. Supporting a data rate of 1.25Gbps, it is suitable for Ethernet, telecom, and Fiber Channel applications. The transceiver operates on a single +3.3V power supply and features LVPECL-compatible data input/output interfaces, ensuring seamless integration with host systems. Its compliance with IEC-60825 laser safety standards and RoHS regulations underscores its commitment to safety and environmental standards.
This module is engineered to operate reliably under a variety of conditions, with a supply voltage range of 3.15V to 3.45V and operating temperatures spanning 0°C to +70°C for commercial use, and -40°C to +85°C for industrial environments. The device’s maximum power dissipation of 1W makes it an energy-efficient solution for extended-range networking. It is also designed with robust protection against electromagnetic interference (EMI) and electrostatic discharge (ESD), ensuring consistent performance in demanding applications.
Optically, the transceiver excels with a transmitter operating at a center wavelength of 1550nm, delivering an output power between 0dBm and +5dBm. The extinction ratio of 10dB to 15dB ensures effective signal differentiation. The receiver section supports wavelengths from 1260nm to 1620nm, with a sensitivity of -32dBm and an overload threshold of -7dBm. These characteristics align with IEEE 802.3z and ANSI Fiber Channel standards, ensuring high-quality data transmission and compatibility with advanced protocols.
Electrically, the module includes a differential impedance of 100Ω and supports data input swing differentials from 500mV to 2400mV. The receiver delivers an output swing differential between 370mV and 2000mV. Features such as TX Disable, TX Fault, and Loss of Signal (LOS) detection enable precise control and fault monitoring, enhancing its utility in complex network configurations.
Overall, the 1.25Gbps SFP Optical Transceiver is a robust and energy-efficient solution for ultra-long-distance networking needs. Its advanced optical and electrical performance, combined with compliance to industry standards, makes it a reliable choice for modern telecommunications and data center infrastructure.
The CT-SFP-XZX is a high-performance SFP module designed for 1.25 Gb/s links up to 160 km on single-mode fiber. It integrates a 1550 nm DFB laser transmitter with an APD photodiode receiver, providing excellent sensitivity (–32 dBm) and optical budget. Operating with a single +3.3 V supply and <1 W power consumption, it supports LVPECL-compatible differential interfaces, EEPROM-based diagnostics, and strong EMI/ESD protection. Compliant with IEEE 802.3z Gigabit Ethernet, ANSI Fibre Channel, IEC-60825 Class 1 laser safety, and RoHS, it is suitable for commercial and industrial use.
| Parameter | Value |
|---|---|
| Form factor / Connector | SFP, LC duplex |
| Data rate | 1.25 Gb/s |
| Tx wavelength | 1550 nm, DFB laser |
| Rx wavelength | 1260–1620 nm |
| Fiber type / Reach | SMF, up to 160 km |
| Tx output power | 0 to +5 dBm |
| Extinction ratio | 10–15 dB |
| Rx sensitivity | ≤ –32 dBm (APD) |
| Rx overload | –7 dBm |
| LOS threshold | Assert –40 dBm, Deassert –32 dBm |
| Power consumption | ≤ 1 W |
| Supply voltage | 3.15–3.45 V (nom. 3.3 V) |
| Electrical interface | LVPECL-compatible differential I/O |
| EEPROM | Serial ID (A0h), diagnostics (SFF-8472) |
| Category | Range |
|---|---|
| Operating case temperature (Commercial) | 0 to +70 °C |
| Operating case temperature (Industrial) | –40 to +85 °C |
| Storage temperature | –40 to +85 °C |
| Relative humidity | 5% – 95% (non-condensing) |
At Carritech, we pride ourselves on our exceptional service and commitment to meeting our customers’ needs. Our extensive range of SFP transceivers 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.
At Carritech Optics, every product we supply undergoes a meticulous testing process designed to guarantee exceptional quality, reliability, and consistency. Our manufacturer operates within a professional laboratory environment, where advanced testing equipment and industry-standard procedures are used to carefully evaluate each item.
Carritech’s Opticode is an advanced transceiver programming solution that gives you complete flexibility across your optical network. Designed to ensure seamless compatibility with a wide range of OEM systems, Opticode allows you to quickly reconfigure transceivers to meet your specific requirements. The result is greater control, reduced costs, and a more adaptable, future-proof infrastructure.
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