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by Juniper
Product Line: Juniper Networks QFXSFP10GESR
Product Type: Optical Transceiver
Original price $0.00 - Original price $53.00
Original price
$0.00 - $53.00
Current price $53.00
Title: Surplus

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Product Description

The QFX-SFP-10GE-SR is a 10 Gigabit Ethernet SFP+ transceiver with a wavelength of 850nm and supports a maximum data rate of 10.3125Gbps. It operates over a distance of up to 300m on 62.5/125 µm fiber with a duplex LC connector and has a power consumption of less than 1W. This transceiver features a TX power range of -7.3 to -1dBm, receiver sensitivity of less than -11.1dBm, and operates within a temperature range of 0° C to 70° C.

Key Feature for the QFXSFP10GESR

  • What is the maximum data rate supported by the 10GBASE-SR SFP+ transceiver?
    The 10GBASE-SR SFP+ supports a maximum data rate of 10.3125Gbps.
  • How does the operating temperature range of the SFP+ module affect its performance?
    The SFP+ module operates effectively within a temperature range of 0° C to 70° C, ensuring stable performance under various environmental conditions.
  • What type of cable is required for the 10GBASE-SR SFP+ 850nm transceiver?
    A duplex LC cable with a core/cladding size of 62.5/125 µm is required for optimal performance.
  • Can the 10GBASE-SR SFP+ transceiver operate on a single 3.3V power supply?
    Yes, the transceiver operates on a single 3.3V power supply, with a typical power consumption of less than 1W.
  • What is the effective modal bandwidth for the 10GBASE-SR SFP+ 850nm?
    The effective modal bandwidth is 160 MHz x km, suitable for high-speed data transmission.
  • What is the significance of receiver sensitivity in the 10GBASE-SR SFP+ module?
    Receiver sensitivity, which is less than -11.1dBm, ensures reliable signal detection even at low power levels, enhancing network performance.
  • How does the TX Power range impact the 10GBASE-SR SFP+ transceiver's functionality?
    With a TX Power range of -7.3 to -1dBm, the transceiver can maintain signal strength over distances up to 300m, ensuring effective communication.
  • What is the importance of the extinction ratio in the 10GBASE-SR SFP+ transceiver?
    An extinction ratio greater than 3dB is crucial for maintaining signal integrity by differentiating between light and dark signals, thus reducing error rates.
  • How far can the 10GBASE-SR SFP+ 850nm transceiver transmit data effectively?
    The transceiver can effectively transmit data up to a distance of 300m, suitable for medium-range network connections.
  • What are the storage temperature limits for the 10GBASE-SR SFP+ transceiver?
    The transceiver can be safely stored within a temperature range of -40° C to 85° C, ensuring its longevity and reliability.

Product Review

The Juniper QFX-SFP-10GE-SR offers a maximum data rate of 10.3125Gbps over a 300m distance on 850nm wavelength, suitable for high-speed data transmission in medium-range network connections. Its low power consumption of less than 1W and support for a wide range of operating temperatures (0°C to 70°C) ensure efficient and reliable performance in varied environments. However, the receiver sensitivity of less than -11.1dBm and a minimum extinction ratio of >3dB might limit performance in scenarios requiring higher sensitivity or signal quality.


The Juniper QFX-SFP-10GE-SR is a high-performance 10 Gigabit Ethernet transceiver designed for use in various Juniper switches and routers. It operates on the SFP+ platform and is engineered to provide reliable network connectivity over fiber optic cables. The transceiver supports a wavelength of 850nm and is specifically tailored for short-range data communication and networking applications. This transceiver module has a duplex LC connector and is designed to work over multimode fiber with a core size/cladding of 62.5/125 µm. It offers an effective modal bandwidth of 160 MHz x km, ensuring high-speed data transmissions are maintained without compromise. The maximum data rate supported by the QFX-SFP-10GE-SR is 10.3125Gbps, which accommodates the needs of most modern networking environments requiring high bandwidth. One of the key features of this transceiver is its Digital Optical Monitoring (DOM) capability, which allows for real-time monitoring of the transceiver's operational parameters such as temperature, TX power, RX power, and more. This feature is crucial for network administrators who aim to ensure optimal performance and reliability of their network infrastructure. The hardware specifications of the Juniper QFX-SFP-10GE-SR include: - TX Power range between -7.3 and -1dBm, with a minimum and maximum setting of -6.00 to -1.00 respectively. - RX Power range is from -11.1 to -1.00dBm, ensuring that signals are received within an acceptable power range to maintain integrity and reduce error rates. - The transceiver maintains an extinction ratio greater than 3dB, which is vital for maintaining signal quality over the fiber link. - It operates efficiently, with a typical power consumption of less than 1W, making it an energy-efficient choice for enterprises looking to minimize their energy usage. Other important specifications include: - The power budget of 3.8dB, allowing for effective data transmission over a distance of up to 300 meters, depending on the fiber quality and environmental conditions. - The receiver sensitivity is less than -11.1dBm, coupled with a receiver overload of -1dBm, highlighting the device's capability to perform reliably even in challenging conditions. - The transceiver supports a signaling rate of 9.95328 GBd +/- 20 ppm and 10.3125 GBd +/- 100 ppm, ensuring compatibility with various networking standards and devices. Regarding environmental tolerances, the Juniper QFX-SFP-10GE-SR can operate within a temperature range of 0° C to 70° C, and it can be stored in temperatures ranging from -40° C to 85° C. This wide temperature range ensures that the transceiver can be deployed in a variety of environments without concern for heat-related degradation. It requires a single 3.3V power supply and has a supply current of 300 mA. In summary, the Juniper QFX-SFP-10GE-SR is an SFP+ transceiver that offers fast data rates, low power consumption, and reliable performance for 10 Gigabit Ethernet networking applications. Its support for digital optical monitoring and its robust environmental tolerances make it a suitable choice for enterprises looking to maintain efficient, high-speed network connections.


Part Number Juniper QFX-SFP-10GE-SR
Manufacturer Juniper
Module Type 10GBASE-SR SFP+ 850nm
Maximum Distance 300 meters
Interface Duplex LC with DOM support
Network Speed 10 Gigabit Ethernet
Form Factor SFP+
Emission Wavelength 850 nanometers
Transmit Power Range -7.3 to -1 dBm
Optical Budget 3.8 dB
Consumption Less than 1 Watt
Peak Data Throughput 10.3125 Gigabits per second
Sensitivity of Receiver -11.1 dBm or better
Maximum Receiver Input -1 dBm
Minimum Extinction Ratio 3 dB
Fiber Core/Clad Diameter 62.5/125 micrometers
Bandwidth-Distance Product 160 MHz-km
Reachability 26 meters
Bit Rate Range 9.95328 to 10.3125 Gb/s
Minimum/Maximum Transmit Power -6.00 to -1.00 dBm
Minimum/Maximum Receive Power -11.1 to -1.00 dBm
Power Requirement 3.3 Volts
Current Consumption 300 mA
Operational Temperature Low 0° Celsius
Operational Temperature High 70° Celsius
Lowest Storage Temperature -40° Celsius
Highest Storage Temperature 85° Celsius

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