NOKIA 3HE15379AA Compatible 25G SFP28 BX20-U Transceiver Module
The 3HE15379AA compatible module serves equipment requiring a 25G SFP28 interface with 1270nm-TX/1330nm-RX optics and a 20km rating. Connection is through Simplex LC. Product data, application guidance and factory verification are presented together to support field technicians install, maintain and identify the exact compatible module.
OEM Part Number: 3HE15379AAHT Part Number: SFP-25G23-BX20-I
Product Highlights
- Compatible alternative to NOKIA 3HE15379AA
- 25G connectivity at 25.78Gbps
- Optical wavelength: 1270nm-TX/1330nm-RX
- Specified reach: 20km
- Simplex LC / SMF interface
- Digital diagnostic monitoring: Supported
- Operating temperature: -40 to 85°C (-40 to 185°F)
Specifications
| NOKIA Compatible | 3HE15379AA |
|---|---|
| Manufacturer | HT |
| HT Part Number | SFP-25G23-BX20-I |
| Form Factor | SFP28 |
| Max Data Rate | 25.78Gbps |
| Wavelength | 1270nm-TX/1330nm-RX |
| Max Cable Distance | 20km |
| Connector | Simplex LC |
| Media | SMF |
| Transmitter Type | DFB BiDi |
| Receiver Type | PIN |
| TX Power | 0~6dBm |
| Receiver Sensitivity | < -14dBm |
| Power Budget | 9dB |
| Receiver Overload | 2.5dB |
| Power Consumption | ≤1.2W |
| Extinction Ratio | 3.5dB |
| DDM/DOM | Supported |
| Industrial Temperature Range | -40 to 85°C (-40 to 185°F) |
| CDR | TX & RX Built-in CDR |
| FEC Function | Not support |
| Protocols | SFF-8472, SFF-8402, SFF-8432, SFF-8431, CEI-28G-VSRP |
Field Installation and Maintenance
Inspect the connector and patch lead before installation, then support the fiber without pulling on the module housing. Release the latch properly during maintenance and keep dust protection on unused interfaces. If a module is removed for later use, retain its part-number label and record its original port. For this model, the principal parameters are data rate 25.78Gbps, wavelength 1270nm-TX/1330nm-RX, rated reach 20km.
Applications and Optical Link Design
This BiDi interface is useful where only one fiber strand is available between two sites or racks. It must be paired with the complementary wavelength direction: one end transmits on the wavelength that the other end receives. Verify the paired part number, connector polish and fiber plant before installation, and measure link loss against the specified optical budget.
The industrial temperature rating makes this version appropriate for controlled outdoor cabinets, transport nodes and other installations exposed to wider ambient temperature variation. Adequate airflow, protected cable routing and host-platform temperature limits still apply.
BiDi operation saves a fiber strand but makes wavelength orientation critical. Record the part installed at each end and check its paired receive wavelength. The 20km rating still depends on total channel loss, including connectors and splices.
Optical Acceptance, Diagnostics and Handling
For this model, the specified transmit-power range is 0~6dBm; receiver sensitivity is < -14dBm; the stated optical power budget is 9dB. 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.
Quality Assurance and Packaging
Before packing, the module receives interface inspection, identification and link checks. Protective packaging avoids pressure on the connector and latch. Customer references, rack groups and project packing lists can be added for volume orders.
NOKIA Compatibility and Factory Testing
Compatibility testing for 3HE15379AA combines identification with a live link and available transmit, receive and alarm information. Connector condition is inspected separately. Equipment model, hardware revision and software release can be reviewed before dispatch where platform behavior is uncertain.
Frequently Asked Questions
Is this an original NOKIA transceiver?
No. It is an HT-manufactured compatible alternative for equipment that specifies 3HE15379AA, not an original NOKIA-branded module.
Which fiber and connector are required?
Use Simplex LC with SMF. The specified maximum reach is 20km, 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.
Ordering Information
When ordering, specify 3HE15379AA, SFP-25G23-BX20-I, 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.
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.
