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Works great with our top of rack switches. Great hardware at a great price!
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FluxLight's SFP-25G-SR-S-FL is a Cisco® compatible 25GBase SFP28 Transceiver and is factory pre-programmed with all the necessary configuration data for seamless network integration. Our transceivers perform identically to Cisco® original transceivers and are 100% compatible with other OEM and third party transceivers. The Cisco SFP-25G-SR-S-FL is 100% MSA (Multi-Source Agreement) compliant. All FluxLight's transceivers are tested for 100% functionality and guaranteed compatible for outstanding network performance.
| Parameter | Symbol | Min | Max | Unit |
|---|---|---|---|---|
| Storage Temperature | TS | -40 | 85 | °C |
| Operating Case Temperature | TOP | 0 | 70 | °C |
| Power Supply Voltage | VCC | -0.3 | 3.6 | V |
| Relative Humidity (non-condensation) | RH | 5 | 85 | % |
| Parameter | Symbol | Min | Typical | Max | Unit |
|---|---|---|---|---|---|
| Operating Case Temperature | TOP | 0 | 70 | °C | |
| Power Supply Voltage | VCC | 3.135 | 3.3 | 3.465 | V |
| Data Rate | 25.78125 | Gb/s | |||
| Data Rate Accuracy | -100 | 100 | ppm | ||
| Tx_DISABLE Input Voltage – High | 2 | V | |||
| Tx_DISABLE Input Voltage – Low | 0.8 | V | |||
| Link Distance, OM3 (50/125 µm) | D | 70 | m | ||
| Link Distance, OM4 (50/125 µm) | D | 100 | m |
| Parameter | Symbol | Min | Typical | Max | Unit | Notes |
|---|---|---|---|---|---|---|
| Power Consumption | 1.0 | W | ||||
| Supply Current | Icc | 300 | mA | |||
| Transmitter | ||||||
| Center Wavelength | λC | 840 | 850 | 860 | nm | |
| Spectral Width (RMS) | Δλ | 0.6 | nm | |||
| Average Output Power | Pout | -8.4 | 2.4 | dBm | ||
| Extinction Ratio | ER | 2 | dB | |||
| Receiver | ||||||
| Center Wavelength | λC | 840 | 850 | 860 | nm | |
| Average Receive Power | Pin | -10.3 | 2.4 | dBm | ||
| Unstressed Receiver Sensitivity | Sen | -7.2 | dBm | 1 | ||
| Receiver Reflectance | RR | -12 | dB | |||
| LOS Assert | LOSA | -30 | dBm | |||
| LOS De-Assert | LOSD | -13 | dBm | |||
| LOS Hysteresis | LOSH | 0.5 | dB | |||
Note:
The following digital diagnostic characteristics are defined over the normal operating conditions unless otherwise specified.
| Parameter | Symbol | Min | Max | Unit |
|---|---|---|---|---|
| Temperature monitor absolute error | DMI_Temp | -5 | 5 | °C |
| Supply voltage monitor absolute error | DMI_VCC | -0.1 | 0.1 | V |
| Channel RX power monitor absolute error | DMI_RX_Ch | -3 | 3 | dB |
| Channel Bias current monitor | DMI_Ibias_Ch | -10% | 10% | mA |
| Channel TX power monitor absolute error | DMI_TX_Ch | -3 | 3 | dB |


| Pin | Signal Name | Description | Plug Seq. |
|---|---|---|---|
| 1 | VeeT | Transmitter Ground | 1 |
| 2 | TX FAULT | Transmitter Fault Indication | 3 |
| 3 | TX DISABLE | Transmitter Disable | 3 |
| 4 | SDA | SDA Serial Data Signal | 3 |
| 5 | SCL | SCL Serial Clock Signal | 3 |
| 6 | MOD_ABS | Module Absent. Grounded within the module | 3 |
| 7 | RS0 | Not Connected | 3 |
| 8 | LOS | Loss of Signal | 3 |
| 9 | RS1 | Not Connected | 3 |
| 10 | VeeR | Receiver Ground | 1 |
| 11 | VeeR | Receiver Ground | 1 |
| 12 | RD- | Inv. Received Data Out | 3 |
| 13 | RD+ | Received Data Out | 3 |
| 14 | VeeR | Receiver Ground | 1 |
| 15 | VccR | Receiver Power Supply | 2 |
| 16 | VccT | Transmitter Power Supply | 2 |
| 17 | VeeT | Transmitter Ground | 1 |
| 18 | TD+ | Transmit Data In | 3 |
| 19 | TD- | Inv. Transmit Data In | 3 |
| 20 | VeeT | Transmitter Ground | 1 |
This transceiver is specified as ESD threshold 1kV for high-speed data pins and 2kV for all other electrical input pins, tested per MIL-STD-883, Method 3015.4 /JESD22-A114-A (HBM). However, normal ESD precautions are still required during the handling of this module. This transceiver is shipped in ESD protective packaging. It should be removed from the packaging and handled only in an ESD protected environment.
This is a Class 1 Laser Product according to IEC 60825-1:2007. This product complies with 21 CFR 1040.10 and 1040.11 except for deviations pursuant to Laser Notice No. 50, dated (June 24, 2007).
The following is a list of Finisar Corporation patents Fluxlight has licensed. This licensure recognizes and compensates Finisar for their intellectual property. The SFP-25G-SR-S-FL, like all Fluxlight optical transceivers, is covered by this license agreement. Therefore, Fluxlight customers can rest assured that all products purchased are fully licensed, and our customers are under no potential liability that may ensue from the use of unlicensed optical transceiver products.
U.S. Patent Numbers: 7,184,668 (System and method of protecting eye safety during operation of a fiber optic transceiver), 7,079,775 (Integrated memory mapped controller circuit for fiber optics transceiver), 6,957,021 (Optical transceiver with memory mapped locations), 7,058,310 (System and method for protecting eye safety during operation of a fiber optic transceiver), 6,952,531 (System and method for protecting eye safety during operation of a fiber optic transceiver), 7,162,160 (System and method for protecting eye safety during operation of a fiber optic transceiver), 7,050,720 (Integrated memory mapped controller circuit for fiber optics transceiver)
Original Equipment Manufacturer (OEM) names may be registered trademarks of the respective OEM, and the OEM has neither authorized nor sponsored the use of its trademark or trade name. All OEM names are used for cross reference/comparative purposes only.
This part is covered by our Limited Lifetime Warranty, a 10-year serviceable lifetime, and our 30-Day Money-Back Guarantee. Read the full warranty and return terms.
Works great with our top of rack switches. Great hardware at a great price!
Working flawlessly! Amazing value.
This is a wonderful product. We have never had any issues over the last 7 years we have been ordering this SFP.
Great product. We've never had any issues with compatibility.
these modules just work. came right up with no issues at about one tenth the cost of an SFP from Cisco
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25G · SFP28 · 850nmMMF · 100m · Duplex LC
25G · SFP28 · 850nmMMF · 100m · Duplex LC
25G · SFP28 · 850nmMMF · 100m · Duplex LC

25G · SFP28 · 850nmMMF · 100m · Duplex LC