SFP-1G-SXArista Networks SFP-1G-SX Compatible 1G SFP Transceiver Module 550m on 50 / 125µm OM2 MMF275m on 62.5 / 125µm OM1 MMF220m on 62.5 / 125µm FDDI MMF
The SFP-1G-SX compatible module serves equipment requiring a 1G SFP interface with 850nm optics and a 550m on 50 / 125µm OM2 MMF275m on 62.5 / 125µm OM1 MMF220m on 62.5 / 125µm FDDI MMF rating. Connection is through Duplex LC. Product data, application guidance and factory verification are presented together to support high-density deployments balance optical performance, port access and thermal planning.
OEM Part Number: SFP-1G-SXHT Part Number: SFP-1G-SX
Product Highlights
- Compatible alternative to Arista Networks SFP-1G-SX
- 1G connectivity at 1.25Gbps
- Optical wavelength: 850nm
- Specified reach: 550m on 50 / 125µm OM2 MMF275m on 62.5 / 125µm OM1 MMF220m on 62.5 / 125µm FDDI MMF
- Duplex LC / MMF interface
- Digital diagnostic monitoring: Supported
- Operating temperature: 0 to 70°C (23 to 158°F)
Specifications
| Arista Networks Compatible | SFP-1G-SX |
|---|---|
| Manufacturer | HT |
| HT Part Number | SFP-1G-SX |
| Form Factor | SFP |
| Max. Data Rate | 1.25Gbps |
| Wavelength | 850nm |
| Max. Cable Distance | 550m@50/125µm OM2 MMF275m@62.5/125µm OM1 MMF220m@62.5/125µm FDDI MMF |
| Connector | Duplex LC |
| Media | MMF |
| Transmitter Type | VCSEL |
| Receiver Type | PIN |
| DDM/DOM | Supported |
| Commercial Temperature Range | 0 to 70°C (23 to 158°F) |
| TX Power | -9.5~-3dBm |
| Receiver Sensitivity | < -17dBm |
| Typical Power Consumption | ≤0.8W |
| Receiver Overload | -3dBm |
| Bit Error Ratio (BER) | 1E-12 |
| Extinction Ratio | >9dB |
| EMC (Electro Magnetic Compatibility) | Supported |
| MTBF (SX) | 2,457,002 Hours |
| Protocols | IEEE 802.3z, SFF-8472, SFP MSA (INF-8074i) Compliant |
Applications and Optical Link Design
Typical deployments include switch-to-switch, switch-to-server and aggregation links inside a data hall or between adjacent equipment rooms. The Duplex LC interface connects to the specified multimode cabling, and the stated reach depends on fiber grade and link loss. Keep this interface on the matching multimode optical standard rather than connecting it directly to a single-mode wavelength or reach variant.
Before deployment, check the host port type, supported data rate and firmware requirements. The 1G interface configuration must match the remote equipment; sharing a SFP housing alone does not make two transceiver types interoperable.
For this multimode module, confirm fiber grade, modal bandwidth and total loss before commissioning. The 550m on 50 / 125µm OM2 MMF275m on 62.5 / 125µm OM1 MMF220m on 62.5 / 125µm FDDI MMF figure applies only under suitable cabling conditions. Inspect every Duplex LC mating point and match the remote optical standard.
Quality Assurance and Packaging
Quality control covers the optical or electrical interface, host identification and operating link. The verified unit is then individually protected and cartoned. Customer references, rack groups and project packing lists can be added for volume orders.
Optical Acceptance, Diagnostics and Handling
For this model, the specified transmit-power range is -9.5~-3dBm; receiver sensitivity is < -17dBm. A sound acceptance record includes link state, diagnostic temperature, supply voltage and transmit or receive levels where the host exposes them. Compare the readings with the stated ranges rather than treating any received light as proof of adequate margin. Persistent alarms or borderline values should trigger an end-face and complete-channel inspection. Diagnostic monitoring is listed as Supported. Before every insertion, keep dust caps in place until the patch lead is ready, avoid touching the optical end face and use an appropriate inspection and cleaning procedure. Do not look into an active optical interface.
High-Density Port and Thermal Planning
In a densely populated chassis, connector access and airflow form part of the optical-link design. Confirm that neighboring modules and patch leads leave room for latch operation, and include listed power consumption in the host thermal budget. Assess port density together with fiber management. For this model, the principal parameters are data rate 1.25Gbps, wavelength 850nm, rated reach 550m on 50 / 125µm OM2 MMF275m on 62.5 / 125µm OM1 MMF220m on 62.5 / 125µm FDDI MMF.
Ordering Information
When ordering, specify SFP-1G-SX, SFP-1G-SX, quantity and intended host platform. Project labels can repeat these details for receiving and asset records. Neutral labels, customer packaging and project-specific compatibility review are available on request.
Arista Networks Compatibility and Factory Testing
Factory verification starts with the expected SFP-1G-SX identity and finishes with an operating host link. EEPROM data, diagnostic visibility and the stated optical parameters are assessed together. Equipment model, hardware revision and software release can be reviewed before dispatch where platform behavior is uncertain.
Frequently Asked Questions
Is this an original Arista Networks transceiver?
No. It is an HT-manufactured compatible alternative for equipment that specifies SFP-1G-SX, not an original Arista Networks-branded module.
Which fiber and connector are required?
Use Duplex LC with MMF. The specified maximum reach is 550m on 50 / 125µm OM2 MMF275m on 62.5 / 125µm OM1 MMF220m on 62.5 / 125µm FDDI MMF, subject to fiber quality and total link loss.
Can it be mixed with another wavelength or reach version?
Only when the two ends share the same optical standard, wavelength plan and supported data rate. Check the exact part numbers and link budget rather than relying only on the module form factor.
Shipping and Lead Time
Standard configurations normally ship within one to three working days, with production lead times confirmed for larger quantities. International courier, air freight and sea freight are available; customer courier accounts and nominated forwarders are accepted.
