25G SFP28 ESR Transceiver for 300m MMF Links, 1310nm Duplex LC
SFP28-25-13-03(ESR)-LCD
- Broad Multi-Brand Compatibility
- Flexible Customization Support
- Tested for Reliable Performance
- Fast Response & Delivery
- Professional Technical Support
The FC-LINK SFP28 25G 1310nm 300m ESR LC DX transceiver is a high-performance module designed for 25Gbps optical data transmission and reception over single-mode fiber. Equipped with a 1310nm DFB laser, it supports transmission distances of up to 300 meters.This transceiver complies with industry standards, including SFF-8472, SFF-8402, SFF-8432, and relevant sections of SFF-8431. It also features digital diagnostic functions accessible via a 2-wire serial interface, as outlined in the SFF-8472 specification.
| SPECIFICATIONS | |||
|---|---|---|---|
| Product Model | SFP28-25-13-03(ESR)-LCD | Manufacturer Brand | FC-LINK |
| Package Type | SFP28 | Optical Connector | Duplex LC |
| Max Data Rate | 25.78G | Channel Data Rate | - |
| Effective Transmission Distance | 300m | ||
| Wavelength | 1310nm | Operating Voltage | 3.3V |
| Fiber Type | SMF | Core Size | 9/125µm |
| Transmitter Type | DFB | Receiver Type | PIN |
| TX Power | -5~2dBm | Receiver Sensitivity | <-8.5dBm |
| Digital Optical Monitoring(DOM) | YES | Receiver Overload | - |
| Power Consumption | ≤1W | Protocols | SFF-8472, SFF-8024, SFF-8431, SFF-8432, IEEE 802.3 by, IEEE 802.3cc |
| Operating Temperature(Commercial) | 0℃~+70℃ | Storage Temperature(Commercial) | -40℃~+85℃ |
Server-to-Switch Data Center Links
Used for 10G/25G/100G optical uplinks between servers and top-of-rack switches in high-density data center deployments.
Building-to-Building Campus Backbone
Suitable for 1G/10G fiber links between office buildings, campus distribution rooms, and backbone aggregation points.
Access-to-Core Enterprise Uplinks
Designed for switch uplinks from access to aggregation or core layers in enterprise and campus network architectures.
Industrial Switching in Harsh Environments
Applied in industrial Ethernet, automation systems, and outdoor cabinets where wider temperature tolerance and stable fiber communication are required.
Compatible Brands
Customization Options
Vendor Coding
Private Label
Custom Part Number
Packaging Design
Temperature Grade Selection
| Absolute Maximum Ratings | |||||||||
| Parameter | Symbol | Min. | Max. | Unit | |||||
| Storage temperature range | Ts | -45 | 85 | °C | |||||
| Relative humidity | RH | 0 | 95.00 | % | |||||
| Supply voltage | Vcc | -0.3 | 4.0 | V | |||||
| Recommended Operating Conditions | |||||||||
| Parameter | Symbol | Min. | Typ. | Max. | Unit | ||||
| Operating case temperature range | TOPR | 0 | - | 70 | ℃ | ||||
| Power supply voltage | Vcc | 3.14 | 3.3 | 3.46 | V | ||||
| Bit rate | BR | - | 25.78 | - | Gb/s | ||||
| Max supported link length | L | 0.3 | - | - | km | ||||
| Electrical Ports Definition | |||||||||
| Parameter | Symbol | Unit | Min. | Typ. | Max. | Note | |||
| Supply voltage | Vcc | V | 3.14 | 3.3 | 3.46 | - | |||
| Supply current | Icc | mA | - | 300 | - | - | |||
| Transmitter | |||||||||
| Input differential impedance | RIN | Ω | - | 100 | - | - | |||
| Single ended data input swing | VIN | mVp-p | 90 | - | 450 | - | |||
| Transmit disable voltage | VDIS | V | 2 | - | VCCHOST | - | |||
| Transmit enable voltage | VEN | V | VEE | - | VEE+0.8 | - | |||
| Transmit fault assert voltage | VFA | V | 2.2 | - | VCCHOST | - | |||
| Transmit fault de-assert voltage | VFDA | V | VEE | - | VEE+0.4 | - | |||
| Receiver | |||||||||
| Single ended data output Swing | VOD | mVp-p | 225 | - | 375 | - | |||
| LOS fault | VLOSFT | V | 2.2 | - | VCCHOST | - | |||
| LOS normal | VLOSNR | V | VEE | - | VEE+0.4 | - | |||
| Optical Ports Definition | |||||||||
| Parameter | Symbol | Unit | Min. | Typ. | Max. | Note | |||
| Transmitter | |||||||||
| Center wavelength | λ | nm | 1260 | 1310 | 1360 | - | |||
| Spectral width | SMSR | dBm | 30 | - | - | - | |||
| Optical modulation amplitude | POMA | dBm | -4 | - | 2.2 | - | |||
| Optical output power | Pav | dBm | -5 | - | 2 | - | |||
| Extinction ratio | ER | dB | 3 | - | - | - | |||
| Transmitterand dispersion penalty | TDP | dB | - | - | 1 | - | |||
| Average launch power of OFF transmitter | POFF | dBm | - | - | -30 | - | |||
| Receiver | |||||||||
| Center wavelength | λ | nm | 1260 | - | 1360 | - | |||
| Overload | - | dBm | 2 | - | - | - | |||
| Receiver power (OMA) | POMA | dBm | - | - | -8.5 | 1 | |||
| Assert LOS | LOSA | dBm | -30 | - | - | - | |||
| De-assert LOS | LOSD | dBm | - | - | -16 | - | |||
| LOS hysteresis | - | dB | 0.5 | - | - | - | |||
| *Notes: Measured with 25.78125Gb/s, PRBS 231-1, NRZ, ER>4dB, BER<5E-5 | |||||||||
| Pin Function Definitions |
| Pin No. | Symbol | Logic | Description | ||||||
| 1,17,20 | VeeT | - | Connected to signal ground on the host board | ||||||
| 2 | TX fault | LVTTL output | Module transmitter fault output | ||||||
| 3 | TX disable | LVTTL input | Module transmitter disable control | ||||||
| 4 | SDA | LVTTL input/output | 2-wire serial interface data | ||||||
| 5 | SCL | LVTTL input/output | 2-wire serial interface clock | ||||||
| 6 | MOD-ABS | - | Module absent (connected to module ground) | ||||||
| 7 | RS0 | LVTTL input | Rate select 0 (Rx): low=CDR bypass; high=CDR select | ||||||
| 8 | LOS | LVTTL output | Receiver loss of signal | ||||||
| 9 | RS1 | LVTTL input | Rate select 1 (Tx): low=CDR Bypass;high=CDR select | ||||||
| 10,11,14 | VeeR | - | Connected to signal ground on the host board | ||||||
| 12 | RD- | CML output | Receiver inverted data output, internally AC coupled and terminated | ||||||
| 13 | RD+ | CML output | Receiver non-inverted data output, internally AC coupled and terminated | ||||||
| 15 | VccR | - | Receiver power 3.3V supply | ||||||
| 16 | VccT | - | Transmitter power 3.3V supply | ||||||
| 18 | TD+ | LVTTL input | Transmitter non-inverted data input,internally AC coupled and terminated | ||||||
| 19 | TD- | LVTTL input | Transmitter inverted data input, internally AC coupled and terminated | ||||||
Performance Testing
Each module is tested before shipment to help ensure stable optical and electrical performance.
Compatibility Verification
Compatibility validation is available for major switch and router platforms.
Reliability Screening
Selected products support aging, temperature cycle, and stability testing for demanding applications.
Traceable Quality Control
Inspection and production records support more consistent quality control and batch traceability.
