SFP-25GMLR-31Generic SFP-25GMLR-31 Compatible 25G SFP28 LR Transceiver Module
The SFP-25GMLR-31 compatible module serves equipment requiring a 25G SFP28 interface with 1310nm optics and a 10km 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-25GMLR-31HT Part Number: SFP-25GMLR-31
Product Highlights
- Compatible alternative to Generic SFP-25GMLR-31
- 25G connectivity at 25.78Gbps
- Optical wavelength: 1310nm
- Specified reach: 10km
- Duplex LC / SMF interface
- Operating temperature: 0 to 70°C
- Factory compatibility verification and optical performance testing before shipment
Specifications
| HT Part Number | SFP-25GMLR-31 |
|---|---|
| Manufacturer | HT |
| Form Factor | SFP28 |
| Max Data Rate | 25.78Gbps |
| Wavelength | 1310nm |
| Max Cable Distance | 10km |
| Connector | Duplex LC |
| Media | SMF |
| Transmitter Type | DFB |
| Receiver Type | PIN |
| TX Power | -7~2.5dBm |
| Receiver Sensitivity | ＜-12dBm |
| Power Budget | 5dB |
| Receiver Overload | 2.5dBm |
| Power Consumption | ≤1.5W |
| Extinction Ratio | ＞3dB |
| Commercial Temperature Range | 0 to 70°C |
| Protocols | SFF-8472, SFF-8024, SFF-8431, SFF-8432, CEI-28G-VSR |
| Core Size | G.652 |
| Packaging Technology | BOX Packaging |
| DOM | Supported |
Applications and Optical Link Design
Use this module for equipment interconnection over the specified single-mode fiber plant, including enterprise backbone, campus, metro or data-center interconnect links according to its rated distance. Confirm that both ends use the same optical standard and wavelength plan, and allow for connector, splice and patch-panel loss within the stated power budget.
Before deployment, check the host port type, supported data rate and firmware requirements. The 25G interface configuration must match the remote equipment; sharing a SFP28 housing alone does not make two transceiver types interoperable.
Before commissioning, measure the complete single-mode channel against the stated budget for 10km. Inspect every Duplex LC connection and record diagnostic power where supported. Both ends must agree on rate, wavelength and optical standard.
Quality Assurance and Packaging
Each SFP-25GMLR-31 compatible module is inspected, powered up and functionally checked before protective packing. Dust caps and individual trays shield the interface during transport. 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 -7~2.5dBm; receiver sensitivity is ＜-12dBm; the stated optical power budget is 5dB. Digital diagnostics make later maintenance easier when baseline values are captured at installation. Save the initial readings with the port and OEM reference, then investigate meaningful changes rather than reacting to a single transient value. Diagnostic support depends on the host as well as the module, so unavailable fields should be confirmed with the platform documentation. 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 25.78Gbps, wavelength 1310nm, rated reach 10km.
Ordering Information
When ordering, specify SFP-25GMLR-31, SFP-25GMLR-31, 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.
Generic Compatibility and Factory Testing
The module is checked for host recognition as SFP-25GMLR-31, link establishment and diagnostic reporting. Physical cage fit alone is not treated as evidence of compatibility. Equipment model, hardware revision and software release can be reviewed before dispatch where platform behavior is uncertain.
Frequently Asked Questions
Is this an original equipment manufacturer transceiver?
No. It is an HT-manufactured compatible transceiver supplied under our own manufacturer identity, not an original equipment manufacturer module.
Which fiber and connector are required?
Use Duplex LC with SMF. The specified maximum reach is 10km, 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.
