SFP28 BIDI 25G Series – www.philisun.com

Generic Compatible 25G ELR SFP28 BIDI 1270/1330nm 20km DOM Simplex LC SMF Optical Transceiver Module

philisun001 — Tue, 18 Nov 2025 09:39:57 +0000

SPECIFICATIONS
Product Model	SFP28BD-25-1213-20(ELR)-LC	Manufacturer Brand	PHILISUN
Package Type	SFP28	Optical Connector	LC
Max Data Rate	25.78Gbps	Channel Data Rate	-
Effective Transmission Distance	20km
Wavelength	1270nm-TX/1330nm-RX	Operating Voltage	3.3V
Fiber Type	SMF	Core Size	9/125µm
Transmitter Type	DFB BiDi	Receiver Type	PIN
TX Power	0~6dBm	Receiver Sensitivity	<-14dBm
Digital Optical Monitoring(DOM)	YES	Receiver Overload	2.5dB
Power Consumption	≤1.2W	Protocols	eCPRI, SFF-8472, SFF-8432, SFF-8431
Operating Temperature(Commercial)	0℃~+70℃	Storage Temperature(Commercial)	-40℃~+85℃

PRODUCT PRESENTATION

The PHILISUN SFP28 BIDI 25G 1270/1330nm 20km ELR LC SX transceiver is a high-performance module designed for bidirectional optical data transmission over single-mode fiber, supporting distances of up to 20km. It complies with SFF-8472, SFF-8402, SFF-8432, and applicable sections of SFF-8431 standards.Equipped with digital diagnostic monitoring via a 2-wire serial interface, as outlined in SFF-8472, this transceiver ensures reliable performance and precise monitoring for seamless integration into high-speed network applications.

TRANSCEIVER SERIES PRODUCTS

PRODUCTION & TESTING EQUIPMENT

PERFORMANCE PARAMETER

Absolute Maximum Ratings
Parameter	Symbol	Unit	Min.	Max.
Storage temperature range	TS	°C	-40	85
Relative humidity	RH	%	0	85
Supply voltage	VCC	V	-0.3	3.6

Recommended Operating Conditions
Parameter	Symbol	Unit	Min.	Typ.	Max.
Operating case temperature range	Tc	℃	-40	–	85
Power supply voltage	VCC	V	3.135	3.3	3.465
Bit rate	BR	Gb/s	24.33024	25.78125	–
Max. supported link length	L	km	10	20	–

Electrical Characteristics
Parameter	Symbol	Unit	Min.	Typ.	Max.	Note
Supply voltage	VCC	V	3.14	3.3	3.46	–
Supply current	Icc	mA	–	–	360	@3.3V
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	–
Transmitfault de-assert voltage	VFDA	V	VEE	–	VEE+0.4	–
Receiver
Single ended data output swing	VOD	mVp-p	200	–	450	–
LOS fault	VLOSFT	V	2.2	–	VccHOST	–
LOS normal	VLOSNR	V	VEE	–	Vee+0.4	–

Optical Characteristics
Parameter	Symbol	Unit	Min.	Typ.	Max	Notes
Transmitter
Center wavelength range	λ	nm	1320	–	1340	Downstream
			–	–	1280	Upstream
Spectral width \| -20dB	–	nm	–	–	1	–
Side mode suppression ratio	SMSR	dB	30	–	–	–
Average launch power	PAVG	dBm	0	–	6	–
OMA launch power	POMA	dBm	-2	–	–	–
Transmitter and dispersion penalty 25G \| BER=5E-5	TDP	dB	–	–	4	–
Average launch power of OFF transmitter	POFF	dBm	–	–	-30	–
Extinction ratio	ER	dB	3.5	–	–	–
RIN20OMA	RIN	dB/Hz	–	–	-130	–
Optical return loss tolerance	–	dB	–	–	20	–
Mask margin	–	%	5	–	–	1
Receiver
Center wavelength	λr	nm	1260	1270	1280	Downstream
			1320	1330	1340	Upstream
Overload	–	dBm	2.5	–	–	–
OMA receiver sensitivity up to 25G 5E-5	POMA	dBm	–	–	-14	–
LOS de-assert	LOSA	dBm	-30	–	–	–
Los assert	LOSD	dBm	–	–	-17	–
Los hysteresis	–	dB	0.5	–	–	–
Note 1: Template: {0.31, 0.40, 0.45, 0.34, 0.38, 0.40}, Hit Ratio: 5E-5

PIN FUNCTION DEFINITIONS

TRANSCEIVER PIN DESCRIPTIONS

Pin No.	Symbol	Logic	Description
1	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+	CML input	Transmitter non-inverted data input, internally AC coupled and terminated.
19	TD-	CML input	Transmitter inverted data Input, internally AC coupled and terminated

PRODUCT CERTIFICATION

QUALITY ADVANTAGE

COMPATIBLE BRANDS

CONFIGURATION INFORMATION

The form can be filled in the actual website url.

Generic Compatible 25G ELR SFP28 BIDI 1270/1330nm 20km DOM Simplex LC SMF Optical Transceiver Module最先出现在www.philisun.com。

Generic Compatible 25G LR SFP28 BIDI 1270/1330nm 10km DOM Simplex LC SMF Optical Transceiver Module

philisun001 — Tue, 18 Nov 2025 09:10:16 +0000

SPECIFICATIONS
Product Model	SFP28BD-25-1213-10(LR)-LC	Manufacturer Brand	PHILISUN
Package Type	SFP28	Optical Connector	LC
Max Data Rate	25.78Gbps	Channel Data Rate	-
Effective Transmission Distance	10km
Wavelength	1270nm-TX/1330nm-RX	Operating Voltage	3.3V
Fiber Type	SMF	Core Size	9/125µm
Transmitter Type	DFB BiDi	Receiver Type	PIN
TX Power	-2~4dBm	Receiver Sensitivity	<-13dBm
Digital Optical Monitoring(DOM)	YES	Receiver Overload	2dBm
Power Consumption	≤1W	Protocols	MSA, CPRI, eCPRI
Operating Temperature(Commercial)	0℃~+70℃	Storage Temperature(Commercial)	-40℃~+85℃

PRODUCT PRESENTATION

The PHILISUN SFP28 BIDI 25G 1270/1330nm 10km LR LC SX transceivers are high-performance modules designed for Ethernet links, supporting data rates of up to 25.78Gbps and transmission distances of up to 10km. These transceivers are compliant with SFF-8472 and are compatible with SFF-8432 and relevant parts of SFF-8431 standards.Additionally, the product meets RoHS compliance and is lead-free, adhering to Directive 2011/96/EU, making it an environmentally friendly and reliable solution for high-speed networking applications.

TRANSCEIVER SERIES PRODUCTS

PRODUCTION & TESTING EQUIPMENT

PERFORMANCE PARAMETER

General Specifications
Parameter	Symbol	Min.	Typ.	Max.	Unit	Note
Transmitter
Center Wavelength	λt	1265	1271	1277	nm	–
Center Wavelength	λt	1325	1331	1337	nm	–
spectral width(-20dB)	△λ	–	–	1	nm	–
Average optical Power	Pavg	-5.0	–	2	dBm	1
Laser off power	Poff	–	–	-30	dBm	–
Side mode suppression ratio	–	30	–	–	–	–
Extinction ratio	ER	3.5	–	–	dB	–
Optical return loss tolerance	–	–	–	-12	dB	–
Receiver
Center wavelength	λr	1325	1331	1337	nm	–
Center wavelength	λr	1265	1271	1277	nm	–
Receiver sensitivity	Sen	–	–	-9	dB	2
Los assert	LOSA	-30	–	–	dBm	–
Los dessert	LOSD	–	–	-16	dBm	–
Los hysteresis	LOSH	0.5	–	–	dB	–
Overload	–	2	–	–	dBm	–
Notes: 1. Average power figures are informative only, per IEEE802.3cc. 2. Receiver sensitivity is informative. Shall be measured with conformance test signal for . BER =5x 10-5 .

Absolute Maximum Ratings
Parameter	Symbol	Min.	Typ.	Max.	Unit	Note
Maximum supply voltage	Vcc	0	–	3.6	V	–
Storage temperature	TS	-40	–	85	°C	–
Case operating temperature	TA	0	–	70	°C	Commercial
Relative humidity	RH	0	–	85	%	1
Notes: Non-condensing.

Electrical Characteristics
Parameter	Symbol	Min.	Typ.	Max.	Unit	Note
Supply voltage	VCC	3.14	–	3.46	V	–
Supply current	Icc	–	–	300	mA	Commercial
				360	mA	Extended
				360	mA	Industrial
Power consumption	P	–	–	1	W	Commercial
				1.2	W	Extended
				1.2	W	Industrial
Data rate	R	24.3	–	26.5	Gb/s	–
Fiber Length	L	–	–	10	KM	–
Transmitter (Tx)
Input differential impedance	Rin	–	100	–	Ω	1
Differential data input swing	Vin,pp	180	–	700	mV	2
Transmit disable voltage	VD	2	–	Vcc	V	–
Transmit enable voltage	VEN	Vee	–	Vee+0.8	V	–
Receiver (Rx)
Single ended output voltage tolerance	V	-0.3	–	4	V	–
Rx output diff voltage	Vo	180	–	450	mV	–
LOS fault	VLOS fault	2	–	VccHOST	V	4
LOS normal	VLOS norm	Vee	–	Vee+0.8	V	4
Notes: 1.Connected directly to TX data input pins. AC coupling from pins into laser driver IC. 2.Per SFF-8431 Rev 3.0 3.Into 100 ohms differential termination. 4.LOS is an open collector output. Should be pulled up with 4.7kΩ – 10kΩ on the host board. Normal operation is logic 0; loss of signal is logic 1. Maximum pull-up voltage is 5.5V.

Optical Characteristics
Parameter	Symbol	Min.	Typ.	Max	Unit	Notes
Transmitter (Tx)
Center wavelength	λt	1295	1271	1277	nm	–
		1325	1331	1337	nm	–
Average optical power	PAVE	-2	–	4	dBm	1
Spectral width(-20dB)	△λ	–	–	1	nm	–
Laser off power	Poff	–	–	-30	dBm	–
Side mode suppression ratio	–	30	–	–	–	–
Extinction ratio	ER	3.5	–	–	dB	–
Optical return loss tolerance	–	–	–	-12	dB	–
Receiver (Rx)
Center wavelength	λr	1325	1331	1337	nm	–
		1265	1271	1277	nm	–
Receiver sensitivity	Sen	–	–	-13	dBm	2
Overload	–	2	–	–	dBm	2
LOS de-assert	LOSA	–	–	-14	dBm	–
Los assert	LOSA	-30	-23	–	dBm	–
Los hysteresis	–	0.5	–	–	dB	–
Notes: 1.Average Power figures are informative only, per IEEE802.3cc. 2.Receiver sensitivity is informative. Shall be measured with conformance test signal for . BER =5x 10-5 .

Digital Diagnostic Specifications
Parameter	Symbol	Units	Min.	Max.	Accuracy	Note
Transceiver temperature	T	–	0	+70	±5 ºC	Commercial
Transceiver supply voltage	DDVoltage	V	3.15	3.15	±3%	–
Transmitter bias current	DDBias	mA	0	35	±10%	–
Transmitter output power	DDTx-Power	dBm	-5	+5	±3dB	–
Receiver average optical input power	DDRx-Power	dBm	-16	-3	±3dB	–

Timing Characteristics
Parameter	Symbol	Min.	Typ.	Max.	Unit
TX_disable assert time	t_off	–	–	100	us
TX_disable negate time	t_on	–	–	2	ms
Time to initialize 2-wire interface	t_2w_start_up	–	–	300	ms
Time to initialize	t_start_up	–	–	300	ms
Time to initialize cooled module and time to power up a cooled module to power level II	t_start_up_cooled	–	–	90	s
Time to power up to level II	t_power_level2	–	–	300	ms
Time to power down from level II	t_power_down	–	–	300	ms
Tx_fault assert	Tx_Fault_on	–	–	1	ms
Tx_fault assert for cooled module	Tx_Fault_on_cooled	–	–	50	ms
TX_FAULT reset	t_reset	10	–	–	us
Rx_LOS assert delay	t_los_on	–	–	100	us
Rx_LOS negate delay	t_los_off	–	–	100	us

PIN DESCRIPTION

Pin	Symbol	Name/Description	Plug Seq.
1	VeeT	Module transmitter ground	1
2	TX fault	Module transmitter fault	2
3	TX disable	Transmitter disable; turns off transmitter laser output	3
4	SDL	2 wire serial interface data input/output (SDA)	4
5	SCL	2 wire serial interface clock input (SCL)	4
6	MOD_ABS	Module absent, connect to VeeR or VeeT in the module	2
7	RS0	Rate select0: module inputs and are pulled low to VeeT with > 30kΩ resistorsin the module.	–
8	LOS	Receiver Loss of signal indication	–
9	RS1	Rate select1: module inputs and are pulled low to VeeT with > 30kΩ resistorsin the module.	–
10	VeeR	Module receiver ground	1
11	VeeR	Module receiver ground	1
12	RD-	Receiver inverted data out put	–
13	RD+	Receiver non-inverted data out put	–
14	VeeR	Module receiver ground	1
15	VccR	Module receiver 3.3V supply	–
16	VccT	Module transmitter 3.3V supply	–
17	VeeT	Module transmitter ground	1
18	TD+	Transmitter non-inverted data out put	–
19	TD-	Transmitter inverted data out put	–
20	VeeT	Module transmitter ground	1
Notes: 1.The module ground pins shall be isolated from the module case. 2.This pin is an open collector/drain output pin and shall be pulled up with 4.7K-10Kohms to Host_Vcc on the host board. 3.This pin shall be pulled up with 4.7K-10Kohms to VccT in the module. 4.This pin is an open collector/drain output pin and shall be pulled up with 4.7K-10Kohms to Host_Vcc on the host board.

PRODUCT CERTIFICATION

QUALITY ADVANTAGE

COMPATIBLE BRANDS

CONFIGURATION INFORMATION

The form can be filled in the actual website url.

Generic Compatible 25G LR SFP28 BIDI 1270/1330nm 10km DOM Simplex LC SMF Optical Transceiver Module最先出现在www.philisun.com。