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The 1.25Gbps SFP Optical Transceiver is an efficient and compact solution designed for short-distance optical communication over multimode fiber (MMF) up to 2 kilometers. Housed in an SFP package with an LC connector, the transceiver incorporates a 1310nm FP laser and PIN photodetector for reliable performance. This transceiver supports a data rate of up to 1.25Gbps, making it suitable for Ethernet, telecom, and Fiber Channel applications. It operates on a single +3.3V power supply and offers compatibility with LVPECL data input/output interfaces, ensuring seamless integration with a variety of networking systems. Its adherence to IEC-60825 laser safety standards and RoHS compliance ensures both safety and environmental sustainability.
The module is engineered to perform under diverse conditions, with a supply voltage range of 3.15V to 3.45V and operational temperatures spanning 0°C to +70°C for commercial applications and -40°C to +85°C for industrial environments. Its maximum power dissipation of 1W makes it an energy-efficient choice for modern networks. The device is also designed with excellent protection against electromagnetic interference (EMI) and electrostatic discharge (ESD), ensuring consistent performance in high-demand networking setups.
In terms of optical specifications, the transmitter section operates at a center wavelength of 1310nm, delivering an average output power between -8dBm and -3dBm with an extinction ratio ranging from 10dB to 15dB. The receiver accommodates wavelengths from 1260nm to 1620nm, with a sensitivity of -24dBm and an overload threshold of -3dBm. These features comply with IEEE 802.3z and ANSI Fiber Channel standards, ensuring high-quality signal transmission and compatibility with current protocols.
The transceiver’s electrical characteristics include a differential impedance of 100Ω and support for input swing differentials ranging from 500mV to 2400mV. The receiver provides an output swing differential of 370mV to 2000mV. Features such as TX Disable, TX Fault, and Loss of Signal (LOS) detection offer precise control and robust fault monitoring, enhancing its utility across various network architectures.
Overall, the 1.25Gbps SFP Optical Transceiver is a versatile and reliable module for short-range networking applications. Its combination of high performance, energy efficiency, and adherence to industry standards makes it a valuable component in modern optical communication systems.
The CT-SFP-SX-2 is a cost-effective hot-pluggable SFP module designed for 1.25 Gb/s optical links over multimode fiber up to 2 km. It uses a 1310 nm FP laser transmitter paired with a PIN photodiode receiver, delivering reliable short-range connectivity for LAN, campus, and enterprise networks. With a single +3.3 V power supply and <1 W power consumption, the module supports LVPECL-compatible differential I/O, EEPROM digital diagnostics, and strong EMI/ESD protection. Fully compliant with IEEE 802.3z Gigabit Ethernet, ANSI Fibre Channel, IEC-60825 Class 1 laser safety, and RoHS standards, it is available in commercial and industrial temperature grades.
| Parameter | Value |
|---|---|
| Form factor / Connector | SFP, LC duplex |
| Data rate | 1.25 Gb/s |
| Tx wavelength | 1310 nm, FP laser |
| Rx wavelength | 1260–1620 nm |
| Fiber type / Reach | MMF (50/125 µm), up to 2 km |
| Tx output power | –8 to –3 dBm |
| Extinction ratio | 10–15 dB |
| Rx sensitivity | ≤ –24 dBm (PIN) |
| Rx overload | –3 dBm |
| LOS threshold | Assert –36 dBm, Deassert –24 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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