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DWDM-SFP-4373-120-C
1000BASE-DWDM SFP 1543.73nm 120KM Cisco Compatible
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Overview of “DWDM-SFP-4373-120-C” – DWDM-SFP-4373-120-C is an optical SFP transceiver engineered for dense wavelength division multiplexing applications. It delivers a 1G data rate via an LC connector and is optimized for long-range, single-mode fiber transmission while supporting Ethernet protocols.
Designed in the compact SFP form factor, this transceiver meets the physical dimensions and rugged environmental standards required for data centers, enterprise networks, and telecom applications. Its precise engineering ensures reliable performance over extended distances, making it a trusted choice for mission-critical network deployments.
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| DWDM-SFP-4373-120-C |  DWDM-SFP-4056-120-C |  DWDM-SFP-6141-120-C |  DWDM-SFP-3739-C |  DWDM-SFP-5736-C | |
|---|---|---|---|---|---|
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Form Factor | SFP | SFP | SFP | SFP | SFP |
| Data Rate | 1G | 1G | 1G | 1G | 1G |
| Connector Type | LC | LC | LC | LC | LC |
| Wavelength | 1550 nm | 1550 nm | 1560 nm | 1550 nm | 1553 nm |
| Transmission Distance | Long-Range | Extended-Range | Long-Range | Extended-Range | Long-Range |
| Fiber Type | Single-mode | Single-mode | Single-mode | Single-mode | Single-mode |
| Max Distance | 80 km | 120 km | 80 km | 80 km | 80 km |
| Supported Protocols | Ethernet | Ethernet | Ethernet | Ethernet / Fibre Channel | Ethernet, Fibre Channel |
| Network Interface | Fiber | Fiber | Fiber | Fiber | Fiber |
| Power Consumption | 3.6W | N/A | 1.5 W | 3.5W | 2.5W |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Compatibility | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista | Cisco, Juniper, Huawei, Arista | Cisco / Juniper / Huawei / Arista | Cisco, Juniper, Huawei, Arista |
| Product Name | DWDM-SFP-4373-120-C | DWDM-SFP-4056-120-C | DWDM-SFP-6141-120-C | DWDM-SFP-3739-C | DWDM-SFP-5736-C |
| Height | 0.33 inches | N/A | N/A | 0.38 inches | 0.14 inches |
| Width | 0.53 inches | N/A | N/A | 0.65 inches | 0.52 inches |
| Depth | 2.00 inches | N/A | N/A | 0.75 inches | 0.72 inches |
| Weight | 0.20 lbs | N/A | N/A | 0.07 lbs | 0.05 lbs |
Impressive 1543.73nm stability over 120KM. Recognized immediately by Cisco hardware with flawless transmission and robust power.
Consistent 120KM performance. Top-tier accuracy makes these a perfect fit for dense mux-demux configurations. Very reliable.
Excellent 120KM reach and clarity. Professional stability for mission-critical links. Highly recommended for long-distance transport.
Dependable optics with great power levels. The 1543.73nm channel is rock-solid. Seamless Cisco compatibility and uptime.
High-quality SFP for ultra-long-range networking. Precise wavelength and exceptional value for long-term link reliability.
Steady 1543.73nm signaling at 120KM. Improved our network uptime significantly. Trustworthy solution for extreme distance fiber.
The DWDM-SFP-4373-120-C is a 1000BASE-DWDM SFP transceiver operating at 1543.73 nm with a reach of up to 120 km, fully Cisco-compatible and MSA-compliant.
This module uses a fixed DWDM wavelength of 1543.73 nm, optimized for dense wavelength multiplexing in optical networks.
It supports a maximum single-mode fiber link of 120 km without in-line amplification under standard conditions.
Yes, it is fully tested and Cisco-compatible, ensuring seamless plug-and-play integration with Cisco network equipment.
The module features an LC duplex connector for single-mode fiber connections, ensuring reliable, low-loss coupling.
It offers a typical transmit power of –5 to +2 dBm and a receiver sensitivity of –24 dBm, providing a link budget of at least 19 dB.
Yes, it is hot-swappable, allowing installation and removal without powering down the host device.
The module operates within a commercial temperature range of 0 °C to 70 °C for standard environments.
Ideal for long-haul metro, campus rings, and data center interconnects requiring high port density and low latency.
Yes, it adheres to the SFP Multi-Source Agreement (MSA), ensuring interoperability across vendor platforms.
Insert the module into an empty SFP slot until it clicks, then verify link status with the device’s CLI or management interface.
Check your device’s hardware guide for supported SFP part numbers and confirm matching DWDM channel listings.
DWDM uses narrower channel spacing (0.8 nm) for higher port counts and longer distances than CWDM’s wider 20 nm spacing.
Verify fiber polarity, clean LC connectors, confirm correct channel wavelength, and check device port configurations.
Yes, it comes with a standard one-year warranty covering manufacturing defects and performance issues.
Yes, its power budget and wavelength stability make it suitable for EDFA or Raman-amplified long-haul DWDM systems.
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