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25G/10G Auto Adapting 40km SFP
Posted on 2025-07-28

25G/10G Auto Adapting 40km SFP high-performance optical transceiver supports dual data rates of 25Gbps and 10Gbps with auto-negotiation, delivering transmission distances of up to 40 kilometers over single-mode fiber. Housed in an SFP form factor and compliant with IEEE 802.3 standards.

-40℃~85℃ 25G/10G Auto Adapting 丨 

40km without FEC Support 丨Factory warranty


CLSFP25GERI

25G-SFP-40kmSupports 25GBASE(25Gb/s) and 10GBASE(10Gb/s);

Lane max bit rate 25.78 Gb/s;

Up to 40km transmission on SMF, without FEC support by host board;

Tx 1310nm laser and Rx APD receiver;

High speed I/O electrical interface (25GAUI);

I2C interface with integrated Digital Diagnostic monitoring;

SFP28 MSA package with duplex LC connector;

Single +3.3V power supply; Maximum power consumption 1.5 W;                

Operating case temperature: Refer to Order info.   

Compliant to IEEE 802.3cc Draft3.0, SFF-8402 and SFF-8432;

Operate case temperature -40℃~85℃


 Specification

Number

CLSFP25GERI

VendorC-LIGHT
Form FactorSFP28Data Rate Max25.78Gbps
Wavelength1310nmMax Cable Distance40km
ConnectorDuplex LCMediaSMF
Transmitter TypeDML 1310nmReceiver TypeAPD
TX Power-0.5~6.5dBmReceiver Sensitivity< -18dbm
Power Budget17.5dBReceiver Overload-5dBm
Power Consumption≤1.5WExtinction Ratio4dB
DDM/DOMSupportedIndustrial Temperature Range-40 to 85°C
CDRTX & RX Built-in CDRFEC FunctionSupport
ProtocolsSFF-8472, SFF-8432, SFF-8431Warranty3 Years
Core SizeG.652Packaging TechnologyTO Packaging


 System Test

25G-SFP28-ER-40KM-transceive

/25G-SFP28-ER-40KM-test


 Test video


 Related Products
Number

CLSFP25GERI

CLSFP25GZRI

CLSFP25GDW40P-XX

Wavelength

1310nm

1310nm

C-Band DWDM

Connector

LC Duple

LC SimplexLC Simplex

Cable Distance (Max.

40km

80km

40km

Data Rate

25.78Gbps

25.78Gbps

25.78Gbps

Transmitter Type

DFB

DFB

EML

TX Power

>-0.5dBm

>4.5dBm

>-1dBm

Receiver Sensitivity

< -18dbm

< -20dbm

< -15dbm

Application

Access Network

Access Network

Data Center


 Application Graph
25G-SFP28-40km-application


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