WT-SFP28-CWDM

model：

WT-SFP+25G LR 1271

Description Technical parameters Applications Download Related Products

FEATURE

l 25.78 Gbps serial optical interface

l 1310nm DFB transmitter and PIN PD receiver

l Superior eye performances

l Up to 10km on 9/125 um SMF

l 80nm high sensitivity PIN-TIA receiver

l SFP28 MSA compliant

l Built-in digital diagnostic functions

l Operating case temperature: 0 to +70 °C

l RoHS 6 Compliant

APPLICATIONS

l 25GBASE-LR

l eCPRI , CPRI

l Ethernet Switches

l High-speed Servers

l High-performance Computing Clusters

Outline drawing

Label： SFP28

TRANSMITTER CHARACTERISTICS

Parameter	Symbol	Min.	Typ.	Max.	Unit	Ref.
Center Wavelength	λ	λ-6.5	λ	λ+6.5	nm	*1
Side-mode Suppression Ratio	SMSR	30			dB
Average Optical Power,25.78Gb/s	P_avg	-7.0		+3.0	dBm
Transmitter and Dispersion Penalty	TDP			3	dB
Average Launch Power of OFF Transmitter	P_off			-20	dBm
Extinction Ratio	ER	3.5			dB
Optical Return Loss Tolerance				20	dB
Transmitter Reflectance				-12	dB

*1 :The center wavelength (λ) are 1271nm, 1291nm, 1311 nm and 1331nm

RECEIVER CHARACTERISTICS (T=25°C, unless noted)

Parameter	Symbol	Min.	Typ.	Max.	Unit	Ref.
Center Wavelength	λ	1260		1370	nm
Damage Threshold		3.5			dBm
Receive Power Overload				3.5	dBm
Receiver Reflectance				-12	dB
Receiver Sensitivity (OMA) @5E-5 BER,KR4 FEC, 25.78 Gb/s	S_OMA			-11.3	dBm
LOS Assert	LOS_A			-17	dBm
LOS De-Assert	LOS_D	-30			dBm
LOS Hysteresis		0.5			dB