Name: 25G SFP28 SR 100m
Brand: T&S Communications Co., Ltd.
Availability: InStock

T&S TSSP-8525G-SR is a single-Channel, Pluggable, Fiber-Optical SFP28 for 25 Gigabit Ethernet and Infiniband EDR Applications. It is a high-performance module for short-range data communication and interconnect applications that operate at 25.78125 Gbps up to 70 m using OM3 fiber or 100 m using OM4 fiber. This module is designed to operate over multimode fiber systems using a nominal wavelength of 850nm. The electrical interface uses a 20 contact edge type connector. The optical interface uses duplex LC receptacle.

GET A QUOTE About 25G SFP28 SR 100m

25G SFP28 SR 100m Specification Download

Features of SFP28 25G SR

Supports 25.78Gb/s bit rate
850nm VCSEL laser and PIN photo-detector
Maximum link length of 70m on OM3 MMF and 100m on OM4 MMF
Digital diagnostics functions are available via the I2C interface
Operating case temperature
Commercial: 0°C to +70 °C
+3.3V single power supply
Power consumption less than 1W
RoHS compliant
Password protection for A0h and A2hRoHS6 compliant (lead-free)

Applications of SFP28 25G SR

25GBASE-SR Ethernet
32G Fiber Channel
Other optical links

Specifications of SFP28 25G SR

Absolute Maximum Rating

Recommended Operating Environment

Optical Characteristics

Electrical Characteristics

These values represent the damage threshold of the module. Stress in excess of any of the individual Absolute Maximum Ratings can cause immediate catastrophic damage to the module even if all other parameters are within Recommended Operating Conditions.

Parameters	Symbol	Min.	Max.	Unit
Power Supply Voltage	V_CC	0	+3.6	V
Storage Temperature	Tc	-40	+85	°C
Operating Case Temperature	Tc	0	+70	°C
Relative Humidity	RH	5	95	%
RX Input Average Power	Pmax	-	0	dBm

Recommended Operating Environment specifies parameters for which the electrical and optical characteristics hold unless otherwise noted.

Parameter	Symbol	Min.	Typical	Max	Unit
Power Supply Voltage	V_CC	3.135	3.300	3.465	V
Operating Case Temperature	T_C	0	25	70	°C

The following optical characteristics are defined over the Recommended Operating Environment unless otherwise specified.

Parameter	Symbol	Min.	Typical	Max	Unit	Notes
Transmitter
Center Wavelength	λt	820	850	880	nm
RMS spectral width	Pm	-	-	0.6	nm
Average Optical Power	Pavg	-5.0	-	2.4	dBm	2
Extinction Ratio	ER	2.0	-	-	dB	3
Transmitter Dispersion Penalty	TDP	-	-	3.9	dB
Optical Return Loss Tolerance		-	-	12	dB
Receiver
Center Wavelength	λr	820		880	nm
Receiver Sensitivity	Psens	-	-	-5.2	dBm	3
Los function	Los	-30	-	-12	dBm
Overload Input Optical	Pin	2.4	-	-	dBm
Receiver Reflectance		-	-	-12	dB

Note:

Trade-offs are available between spectral width, center wavelength and minimum OMA, as shown in table 6.
The optical power is launched into MMF
Measured with a PRBS 2³¹-1 test pattern @25.78125Gbps; BER=5x10^-5

The following electrical characteristics are defined over the Recommended Operating Environment unless otherwise specified.

Parameter	Symbol	Min.	Typical	Max	Unit	Notes
Data Rate		-	25.78125	-	Gbps
Power Consumption		-	1200	1500	mW
Transmitter
Single Ended Output Voltage Tolerance		-0.3	-	4.0	V
C common mode voltage tolerance		15	-	-	mV
Tx Input Diff Voltage	VI	400		1600	mV
Tx Fault	VoL	-0.3		0.4	V	At 0.7mA
Receiver
Single Ended Output Voltage Tolerance		-0.3	-	4.0	V
Rx Output Diff Voltage	Vo	300		850	mV

Pin Definition of SFP28 25G SR

Pin	Symbol	Name/Description
1	VEET [1]	Transmitter Ground
2	Tx_FAULT [2]	Transmitter Fault
3	Tx_DIS [3]	Transmitter Disable. Laser output disabled on high or open
4	SDA [2]	2-wire Serial Interface Data Line
5	SCL [2]	2-wire Serial Interface Clock Line
6	MOD_ABS [4]	Module Absent. Grounded within the module
7	RS0 [5]	Rate Select 0
8	RX_LOS [2]	Loss of Signal indication. Logic 0 indicates normal operation
9	RS1 [5]	Rate Select 1
10	VEER [1]	Receiver Ground
11	VEER [1]	Receiver Ground
12	RD-	Receiver Inverted DATA out. AC Coupled
13	RD+	Receiver DATA out. AC Coupled
14	VEER [1]	Receiver Ground
15	VCCR	Receiver Power Supply
16	VCCT	Transmitter Power Supply
17	VEET [1]	Transmitter Ground
18	TD+	Transmitter DATA in. AC Coupled
19	TD-	Transmitter Inverted DATA in. AC Coupled
20	VEET [1]	Transmitter Ground

Notes:

Module circuit ground is isolated from module chassis ground within the module.
should be pulled up with 4.7k – 10k ohms on host board to a voltage between 3.15Vand 3.6V.
Tx_Disable is an input contact with a 4.7 kΩ to 10 kΩ pullup to VccT inside the module.
Mod_ABS is connected to VeeT or VeeR in the SFP+ module. The host may pull this contact up to Vcc_Host with a resistor in the range 4.7 kΩ to10 kΩ.Mod_ABS is asserted “High” when the SFP+ module is physically absent from a host slot.
RS0 and RS1 are module inputs and are pulled low to VeeT with > 30 kΩ resistors in the module.

Regulatory Compliance of SFP28 25G SR

T&S SFP+ transceiver is designed to be Class I Laser safety compliant and is certified per the following standards:

Feature	Agency	Standard	Certificate / Comments
Laser Safety	FDA	CDRH 21 CFR 1040 and Laser Notice No. 50	1120292-000
Product Safety	UL	UL and CUL EN60950-2:2007	E347511
Environmental protection	SGS	RoHS Directive 2002/95/EC	GZ1001008918/CHEM
EMC	WALTEK	EN 55022:2006+A1:2007 EN 55024:1998+A1+A2:2003	WT10093759-D-E-E

Important Notice of SFP28 25G SR

Performance figures, data and any illustrative material provided in this data sheet are typical and must be specifically confirmed in writing by T&S before they become applicable to any particular order or contract. In accordance with the T&S policy of continuous improvement, specifications may change without notice.

The publication of information in this data sheet does not imply freedom from patent or other protective rights of T&S or others. Further details are available from any T&S sales representative.