SFP 1.25G Series – www.philisun.com https://www.philisun.com Optical transceivers support <strong>10G to 800G</strong> high-speed transmission Fri, 05 Dec 2025 01:34:52 +0000 en-US hourly 1 https://www.philisun.com/wp-content/uploads/2025/10/philisun斐立飒-logo彩色方形-1-100x100.png SFP 1.25G Series – www.philisun.com https://www.philisun.com 32 32 Generic Compatible 1000BASE-ZX/EZX SFP 1550nm 40/80/100/120/160km DOM Duplex LC SMF Optical Transceiver Module https://www.philisun.com/products/1-25g-1550nm-40-80-100-120-160km-lc-dx/ Thu, 06 Nov 2025 09:11:34 +0000 https://www.philisun.com/?post_type=product&p=2243 SFP-1.25-15-40/80/100/120/160-LCD

Generic Compatible 1000BASE-ZX/EZX SFP 1550nm 40/80/100/120/160km DOM Duplex LC SMF Optical Transceiver Module最先出现在www.philisun.com。

]]>
SPECIFICATIONS
Product ModelSFP-1.25-15-40/80/100/120/160-LCDManufacturer BrandPHILISUN
Package TypeSFPOptical ConnectorDuplex LC
Max Data Rateup to 1.25GbpsChannel Data Rate-
Effective Transmission Distance40/60/80/100/120/160KM
Wavelength1550nmOperating Voltage3.3V
Fiber TypeSMFCore Size9/125µm
Transmitter TypeDFBReceiver TypeIDP
TX Power40KM -5~0dbm
60KM -2~3dbm
80/100/120KM 0~5dbm
160KM 3~7dbm		Receiver Sensitivity40/60/80KM -24dbm
100KM -28dbm
120KM -32dbm
160KM -37dbm
Digital Diagnostic Monitoring(DDM)YESReceiver Overload40/60/80/100KM' -3dbm
120/160KM' -10dbm
Power Consumption<1WProtocolsSFP MSA SFF-8472
Operating temperature(Commercial)0℃~+70℃Storage Temperature(Commercial)-40℃~+85℃
Operating temperature(Industrial)-40℃~+85℃Storage Temperature(Industrial)-40℃~+85℃

 

PRODUCT PRESENTATION
The PHILISUN SFP 1.25G 1550nm 40/80/100/120/160km LC DX Transceiver is a compact single-mode module designed for high-speed serial optical data communication, supporting extended transmission distances of 40/80/100/120/160km; this small form-factor pluggable (SFP) module is compatible with Gigabit Ethernet 1000BASE-ZX and Fiber Channel 1x SM-LC-L FC-PI standards, featuring a 20-pin connector enabling hot-plug capability for seamless integration and maintenance. Optimized for single-mode fiber operation at 1550nm wavelength, its transmitter integrates a high-performance multiple quantum well (MQW) 1550nm DFB laser compliant with IEC-60825 Class 1 laser safety standards, while the receiver incorporates an advanced optical detection system with integrated InGaAs detector preamplifier (IDP) mounted in an optical header and precision limiting post-amplifier IC to ensure reliable signal reception and processing; the entire series adheres to the SFF-8472 SFP Multi-Source Agreement (MSA), guaranteeing industry-standard compatibility and interoperability.

 

TRANSCEIVER SERIES PRODUCTS

 

PRODUCTION & TESTING EQUIPMENT

 

PERFORMANCE PARAMETER
Absolute Maximum Ratings
Parameter Symbol Min. Max. Unit
Storage temperature TS -4.0 +85 ℃
Supply voltage VCC -0.5 3.6 V
Operating relative humidity – – 95 %
Exceeding any one of these values may destroy the device immediately

 

Recommended Operating Environment
Operating case temperature Tc SFP-1.25-15-40/80/100/120/160-LCD 0 – +70 °C
-40 – +85
Power supply voltage Vcc 3.15 3.3 3.45 V
Power supply current Icc – – 300 mA
Date rate GBE – – 1.25 – Gbps
FC – 1.063 –

 

Performance Specifications – Electrical
Parameter Symbol Min. Typ. Max. Unit Notes
Transmitter
LVPECL inputs(Differential) Vin 500 – 2400 mVpp AC coupled inputs
Input impedance (Differential) Zin 85 100 115 ohm Rin > 100  kohm @ DC
TX_disable Disable – 2 – Vcc V –
Enable – 0 – 0.8 –
TX_FAULT Fault – 2 – Vcc+0.3 V –
Normal – 0 – 0.5 –
Receiver
LVPECL outputs (Differential) Vout 370 – 2000 mVpp AC coupled output
Output impedance (Differential) Zout 85 100 115 ohms –
RX_LOS LOS – 2 – Vcc+0.3 V –
Normal – 0 – 0.8 V –
MOD_DEF ( 2:0 ) VoH 2.5 – – V With serial ID
VoL 0 – 0.5 V

 

Optical and Electrical Characteristics
Parameter Symbol Unit 1550nm DFB and PIN, 40km 1550nm DFB and PIN, 60km 1550nm DFB and PIN, 80km
Min. Typical Max. Min. Typical Max. Min. Typical Max.
9µm core diameter SMF L km – 40 – – 60 – – 80 –
Data rate – Gbps – 1.063/1.25 – – 1.063/1.25 – – 1.063/1.25 –
Transmitter
Center wavelength λC nm 1500 1550 1580 1500 1550 1580 1500 1550 1580
Spectral width (-20dB) Δλ nm – – 1 – – 1 – – 1
Side mode suppression ratio SMSR dB 30 – – 30 – – 30 – –
Average output power Pout dBm -5 – 0 -2 – +3 0 – 5
Extinction ratio ER dB 9 – – 9 – – 9 – –
Rise/Fall time(20%～80%) tr/tf ns – – 0.26 – – 0.26 – – 0.26
Total jitter TJ UI – – 0.43 – – 0.43 – – 0.43
Output optical eye Compliant with IEEE 802.3ah-2004
TX disable assert time t_off us – – 10 – – 10 – – 10
Pout@TX disable asserted Pout dBm – – -45 – – -45 – – -45
Receiver
Center wavelength λ nm 1260 – 1600 1260 – 1600 1260 – 1600
Receiver sensitivity Pmin dBm – – -24 – – -24 – – -24
Receiver overload Pmax dBm -3 – – -3 – – -3 – –
Return loss – dB 12 – – 12 – – 12 – –
Optical path penalty – dB – – 1 – – 1 – – 1
LOS de-assert LOSD dBm – – -25 – – -25 – – -25
LOS assert LOSA dBm -35 – – -35 – – -35 – –
LOS hysteresis – dB 0.5 – – 0.5 – – 0.5 – –

 

Optical and Electrical Characteristics
Parameter Symbol Unit 1550nm DFB and PIN, 100km 1550nm DFB and APD, 120km 1550nm DFB and APD, 160km
Min. Typical Max. Min. Typical Max. Min. Typical Max.
9µm core diameter SMF L km – 100 – – 120 – – 160 –
Data rate – Gbps – 1.063/1.25 – – 1.063/1.25 – – 1.063/1.25 –
Transmitter
Center wavelength λC nm 1500 1550 1580 1500 1550 1580 1500 1550 1580
Spectral width (-20dB) Δλ nm – – 1 – – 1 – – 1
Side mode suppression ratio SMSR dB 30 – – 30 – – 30 – –
Average output power Pout dBm 0 – 5 0 – 5 3 – 7
Extinction ratio ER dB 9 – – 9 – – 9 – –
Rise/Fall time(20%～80%) tr/tf ns – – 0.26 – – 0.26 – – 0.26
Total jitter TJ UI – – 0.43 – – 0.43 – – 0.43
Output optical eye Compliant with IEEE 802.3ah-2004
TX disable assert time t_off us – – 10 – – 10 – – 10
Pout@TX disable asserted Pout dBm – – -45 – – -45 – – -45
Receiver
Center wavelength λ nm 1260 – 1600 1260 – 1600 1260 – 1600
Receiver sensitivity Pmin dBm – – -28 – – -32 – – -37
Receiver overload Pmax dBm -3 – – -10 – – -10 – –
Return loss – dB 12 – – 12 – – 12 – –
Optical path penalty – dB – – 1 – – 1 – – 1
LOS de-assert LOSD dBm – – -29 – – -33 – – -38
LOS assert LOSA dBm -42 – – -45 – – -45 – –
LOS hysteresis – dB 0.5 – – 0.5 – – 0.5 – –

 

FUNCTIONAL DESCRIPTION OF TRANSCEIVER

 

SFP TRANSCEIVER ELECTRICAL PAD LAYOUT

 

PIN FUNCTION DEFINITIONS
Pin Name Function Plug Seq. Notes
1 VeeT Transmitter ground 1 5)
2 TX Fault Transmitter fault indication 3 1)
3 TX Disable Transmitter disable 3 2) Module disables on high or open
4 MOD-DEF2 SDA 3 3) 2 wire serial ID interface.
5 MOD-DEF1 SCL 3 3) 2 wire serial ID interface.
6 MOD-DEF0 MOD_ABS 3 3) Grounded within the module.
7 Rate Select Not connect 3 Function not available
8 LOS Loss of signal 3 4)
9 VeeR Receiver ground 1 5)
10 VeeR Receiver ground 1 5)
11 VeeR Receiver ground 1 5)
12 RD- Inv. received data out 3 6)
13 RD+ Received data out 3 7)
14 VeeR Receiver ground 1 5)
15 VccR Receiver power 2 7) 3.3V ± 5%
16 VccT Transmitter power 2 7) 3.3V ± 5%
17 VeeT Transmitter ground 1 5)
18 TD+ Transmit data In 3 8)
19 TD- Inv. transmit data In 3 8)
20 VeeT Transmitter ground 1 5)
Notes:
1) TX Fault is an open collector/drain output, which should be pulled up with a 4.7K – 10KΩ resistor on the host board. Pull up voltage between 2.0V and VccT/R+0.3V. When high, output indicates a laser fault of some kinds. Low indicates normal operation. In the low state, the output will be pulled to < 0.8V.2) TX disable is an input that is used to shutdown the transmitter optical output. It is pulled up within the module with a 4.7K – 10 KΩ resistor. Its states are:
Low (0 – 0.8V): Transmitter on
(>0.8, < 2.0V): Undefined
High (2.0 – 3.465V): Transmitter Disabled
Open: Transmitter Disabled3) Mod-Def 0,1,2. These are the module definition pins. They should be pulled up with a 4.7K – 10K resistor on the host board. The pull-up voltageshall be VccT or VccR .
Mod-Def 0 is grounded by the module to indicate that the module is present
Mod-Def 1 is the clock line of two wire serial interface for serial ID
Mod-Def 2 is the data line of two wire serial interface for serial ID

4) LOS is an open collector/drain output, which should be pulled up with a 4.7K – 10KΩ resistor. Pull up voltage between 2.0V and VccT/R+0.3V. When high, this output indicates the received optical power is below the worst-case receiver sensitivity (as defined by the standard in use).Low indicates normal operation. In the low state, the output will be pulled to < 0.8V.

5) VeeR and VeeT may be internally connected within the SFP module.

6) RD-/+: These are the differential receiver outputs. They are AC coupled 100Ω differential lines which should be terminated with 100Ω (differential) at the user SERDES. The AC coupling is done inside the module.

7) VccR and VccT are the receiver and transmitter power supplies. They are defined as 3.3V ±5% at the SFP connector pin. Maximum supply current is 300Ma. Recommended host board power supply filtering is shown below. Inductors with DC resistance of less than 1ohm should be used in order to maintain the required voltage at the SFP input pin with 3.3V supply voltage. When the recommended supply-filtering network is used, hot plugging of the SFP transceiver module will result in an inrush current of no more than 30Ma greater than the steady state value.VccR and VccT may be internally connected within the SFP transceiver module.

8) TD-/+: These are the differential transmitter inputs. They are AC-coupled, differential lines with 100Ω differential termination inside the module.

 

PRODUCT CERTIFICATION

 

QUALITY ADVANTAGE

 

COMPATIBLE BRANDS
CONFIGURATION INFORMATION
The form can be filled in the actual website url.

 

Generic Compatible 1000BASE-ZX/EZX SFP 1550nm 40/80/100/120/160km DOM Duplex LC SMF Optical Transceiver Module最先出现在www.philisun.com。

]]> Generic Compatible 1000BASE-LX/EX SFP 1310nm 1/10/15/20/40km DOM Duplex LC SMF/MMF Optical Transceiver Module https://www.philisun.com/products/1-25g-1310nm-1-10-15-20-40km-lc-dx/ Thu, 06 Nov 2025 08:11:40 +0000 https://www.philisun.com/?post_type=product&p=2227 SFP-1.25-13-1/10/15/20/40-LCD

Generic Compatible 1000BASE-LX/EX SFP 1310nm 1/10/15/20/40km DOM Duplex LC SMF/MMF Optical Transceiver Module最先出现在www.philisun.com。

]]>
SPECIFICATIONS
Product ModelSFP-1.25-13-1/10/15/20/40LCDManufacturer BrandPHILISUN
Package TypeSFPOptical ConnectorDuplex LC
Max Data Rateup to 1.25GbpsChannel Data Rate-
Effective Transmission Distance1/10/15/20/30/40KM
Wavelength1310nmOperating Voltage3.3V
Fiber TypeMMF/SMFCore Size50/125um
9/125µm
Transmitter TypeFPReceiver TypeIDP
TX Power1/10KM -9~-3dbm
15/20KM -8~-3dbm
30KM -5~0dbm
40KM -2~3dbm		Receiver Sensitivity1/10/15KM -21dbm
20KM -22dbm
30/40KM -24dbm
Digital Diagnostic Monitoring(DDM)YESReceiver Overload-3dBm
Power Consumption<1WProtocolsSFP MSA SFF-8472
Operating temperature(Commercial)0℃~+70℃Storage Temperature(Commercial)-40℃~+85℃
Operating temperature(Industrial)-40℃~+85℃Storage Temperature(Industrial)-40℃~+85℃

 

PRODUCT PRESENTATION
The PHILISUN SFP 1.25G 1310nm 1/10/15/20/40km LC DX Transceiver series offers versatile solutions for high-speed optical data communication, catering to both multi-mode and single-mode fiber applications. For multi-mode fiber networks, the 1km transceiver is a compact, small form-factor pluggable module designed for bi-directional serial optical data communication, supporting protocols such as Ethernet and SDH/SONET. Equipped with a 20-pin SFP connector, it enables hot-plug functionality for easy installation and maintenance. Optimized for multi-mode fiber, this module operates at a standard wavelength of 1310nm, ensuring reliable performance for short-range applications.For single-mode fiber networks, the 10/15/20/40km transceiver is a high-performance module designed for long-distance bi-directional communication, compatible with Gigabit Ethernet 1000BASE-LX and Fiber Channel 1x SM-LC-L FC-PI. It also features a 20-pin SFP connector for hot-plug capability. Operating at a nominal wavelength of 1310nm, this transceiver is tailored for single-mode fiber. The transmitter incorporates a high-quality multiple quantum well 1310nm laser, compliant with Class 1 laser safety standards under IEC-60825. The receiver utilizes an advanced optical detection system, including an integrated InGaAs detector preamplifier (IDP) mounted in an optical header and a precision limiting post-amplifier IC, ensuring robust signal reception and processing.The SFP 1.25G 1310nm 1/10/15/20/40km LC DX Transceiver series is fully compliant with the SFF-8472 SFP Multi-Source Agreement (MSA), guaranteeing industry-standard compatibility and interoperability across both multi-mode and single-mode applications.

 

TRANSCEIVER SERIES PRODUCTS

 

PRODUCTION & TESTING EQUIPMENT

 

PERFORMANCE PARAMETER
Absolute Maximum Ratings
Parameter Symbol Min. Max. Unit
Storage temperature TS -4.0 +85 ℃
Supply voltage VCC -0.5 3.6 V
Operating relative humidity – – 95 %
Exceeding any one of these values may destroy the device immediately

 

Recommended Operating Environment
Operating case temperature Tc SFP-1.25-13-1/10/15/20/40-LCD 0 – +70 °C
-40 – +85
Power supply voltage Vcc 3.15 3.3 3.45 V
Power supply current Icc – – 300 mA
Date rate GBE – – 1.25 – Gbps
FC – 1.063 –
– – – – 1.25

 

Performance Specifications – Electrical
Parameter Symbol Min. Typ. Max. Unit Notes
Transmitter
LVPECL inputs(Differential) Vin 500 – 2400 mVpp AC coupled inputs
Input impedance (Differential) Zin 85 100 115 ohm Rin > 100  kohm @ DC
TX_disable Disable – 2 – Vcc V –
Enable – 0 – 0.8 –
TX_FAULT Fault – 2 – Vcc+0.3 V –
Normal – 0 – 0.5 –
Receiver
LVPECL outputs (Differential) Vout 370 – 2000 mVpp AC coupled output
Output impedance (Differential) Zout 85 100 115 ohms –
RX_LOS LOS – 2 – Vcc+0.3 V –
Normal – 0 – 0.8 V –
MOD_DEF ( 0:2 ) VoH 2.5 – – V With serial ID
VoL 0 – 0.5 V

 

Optical and Electrical Characteristics-1310nm FP and PIN, 1km
Parameter Symbol Unit Min. Typical Max.
50µm core diameter MMF
(800MHz.km)		 L km – 1 –
62.5µm core diameter MMF
(550MHz.km)		 L km – 0.55 –
Data rate – Gbps – 1.25 –
Transmitter
Center wavelength λC nm 1260 1310 1360
Spectral width (RMS) Δλ nm – – 5
Average output power Pout dBm -9 – -3
Extinction ratio ER dB 9 – –
Rise/Fall time(20%～80%) tr/tf ns – – 0.26
Total jitter TJ UI – – 0.43
Output optical eye IEEE802.3ah-2004 compliant
TX disable assert time t_off us – – 10
Receiver
Center wavelength λc nm 1260 – 1600
Receiver sensitivity Pmin dBm – – -21
Receiver overload Pmax dBm -3 – –
Return loss – dB 12 – –
LOS de-assert LOSD dBm – – -22
LOS assert LOSA dBm -35 – –
LOS hysteresis – dB 0.5 – –

 

Optical and Electrical Characteristics-1310nm FP and PIN, 10km
Parameter Symbol Min. Typical Max. Unit
9µm core diameter SMF L – 10 – km
Data rate – – 1.063/1.25 – Gbps
Transmitter
Center wavelength λC 1270 1310 1355 nm
Spectral width (RMS) Δλ – – 4 nm
Average output power Pout -9 – -3 dBm
Extinction ratio ER 9 – – dB
Rise/Fall time(20%～80%) tr/tf – – 0.26 ns
Total jitter TJ – – 0.43 UI
Output optical eye Compliant with IEEE 802.3z
TX disable assert time t_off – – 10 us
Pout@TX disable asserted Pout – – -45 dBm
Receiver
Center wavelength λ 1270 – 1355 nm
Receiver sensitivity Pmin – – -21 dBm
Receiver overload Pmax -3 – – dBm
LOS de-assert LOSD – – -22 dBm
LOS assert LOSA -35 – – dBm
LOS hysteresis – 0.5 – – dB

 

Optical and Electrical Characteristics-1310nm FP and PIN, 15km
Parameter Symbol Min. Typical Max. Unit
9µm core diameter SMF L – 15 – km
Data rate – – 1.063/1.25 – Gbps
Transmitter
Center wavelength λC 1260 1310 1360 nm
Spectral width (RMS) Δλ – – 4 nm
Average output power Pout -8 – -3 dBm
Extinction ratio ER 9 – – dB
Rise/Fall time(20%～80%) tr/tf – – 0.26 ns
Total jitter TJ – – 0.43 UI
Output optical eye Compliant with IEEE 802.3z
TX disable assert time t_off – – 10 us
Pout@TX disable asserted Pout – – -45 dBm
Receiver
Center wavelength λ 1260 – 1600 nm
Receiver sensitivity Pmin – – -21 dBm
Receiver overload Pmax -3 – – dBm
LOS de-assert LOSD – – -22 dBm
LOS assert LOSA -35 – – dBm
LOS hysteresis – 0.5 – – dB

 

Optical and Electrical Characteristics-1310nm FP and PIN, 20km
Parameter Symbol Min. Typical Max. Unit
9µm core diameter SMF L – 20 – km
Data rate – – 1.063/1.25 – Gbps
Transmitter
Center wavelength λC 1260 1310 1360 nm
Spectral width (RMS) Δλ – – 4 nm
Average output power Pout -8 – -3 dBm
Extinction ratio ER 9 – – dB
Rise/Fall time(20%～80%) tr/tf – – 0.26 ns
Total jitter TJ – – 0.43 UI
Output optical eye Compliant with IEEE 802.3z
TX disable assert time t_off – – 10 us
Pout@TX disable asserted Pout – – -45 dBm
Receiver
Center wavelength λ 1260 – 1600 nm
Receiver sensitivity Pmin – – -22 dBm
Receiver overload Pmax -3 – – dBm
LOS de-assert LOSD – – -23 dBm
LOS assert LOSA -35 – – dBm
LOS hysteresis – 0.5 – – dB

 

Optical and Electrical Characteristics-1310nm FP and PIN, 30km
Parameter Symbol Min. Typical Max. Unit
9µm core diameter SMF L – 30 – km
Data rate – – 1.063/1.25 – Gbps
Transmitter
Center wavelength λC 1260 1310 1360 nm
Spectral width (RMS) Δλ – – 4 nm
Average output power Pout -5 – 0 dBm
Extinction ratio ER 9 – – dB
Rise/Fall time(20%～80%) tr/tf – – 0.26 ns
Total jitter TJ – – 0.43 UI
Output optical eye Compliant with IEEE 802.3z
TX disable assert time t_off – – 10 us
Pout@TX disable asserted Pout – – -45 dBm
Receiver
Center wavelength λ 1260 – 1600 nm
Receiver sensitivity Pmin – – -24 dBm
Receiver overload Pmax -3 – – dBm
LOS de-assert LOSD – – -25 dBm
LOS assert LOSA -35 – – dBm
LOS hysteresis – 0.5 – – dB

 

Optical and Electrical Characteristics-1310nm FP and PIN, 40km
Parameter Symbol Min. Typical Max. Unit
9µm core diameter SMF L – 40 – km
Data rate – – 1.063/1.25 – Gbps
Transmitter
Center wavelength λC 1260 1310 1360 nm
Spectral width (-20dB) Δλ – – 1 nm
Side mode suppression ratio SMSR 30 – – dBm
Average output power Pout -2 – 3 dBm
Extinction ratio ER 9 – – dB
Rise/Fall time(20%～80%) tr/tf – – 0.26 ns
Total jitter TJ – – 0.43 UI
Output optical eye Compliant with IEEE 802.3z
TX disable assert time t_off – – 10 us
Pout@TX disable asserted Pout – – -45 dBm
Receiver
Center wavelength λ 1260 – 1600 nm
Receiver sensitivity Pmin – – -24 dBm
Receiver overload Pmax -3 – – dBm
LOS de-assert LOSD – – -25 dBm
LOS assert LOSA -35 – – dBm
LOS hysteresis – 0.5 – – dB

 

FUNCTIONAL DESCRIPTION OF TRANSCEIVER

 

SFP TRANSCEIVER ELECTRICAL PAD LAYOUT

 

PIN FUNCTION DEFINITIONS
Pin Name Function Plug Seq. Notes
1 VeeT Transmitter ground 1 5)
2 TX Fault Transmitter fault indication 3 1)
3 TX Disable Transmitter disable 3 2) Module disables on high or open
4 MOD-DEF2 SDA 3 3) 2 wire serial ID interface.
5 MOD-DEF1 SCL 3 3) 2 wire serial ID interface.
6 MOD-DEF0 MOD_ABS 3 3) Grounded within the module.
7 Rate Select Not connect 3 Function not available
8 LOS Loss of signal 3 4)
9 VeeR Receiver ground 1 5)
10 VeeR Receiver ground 1 5)
11 VeeR Receiver ground 1 5)
12 RD- Inv. received data out 3 6)
13 RD+ Received data out 3 7)
14 VeeR Receiver ground 1 5)
15 VccR Receiver power 2 7) 3.3V ± 5%
16 VccT Transmitter power 2 7) 3.3V ± 5%
17 VeeT Transmitter ground 1 5)
18 TD+ Transmit data In 3 8)
19 TD- Inv. transmit data In 3 8)
20 VeeT Transmitter ground 1 5)
Notes:
1) TX Fault is an open collector/drain output, which should be pulled up with a 4.7K – 10KΩ resistor on the host board. Pull up voltage between 2.0V and VccT/R+0.3V. When high, output indicates a laser fault of some kinds. Low indicates normal operation. In the low state, the output will be pulled to < 0.8V.2) TX disable is an input that is used to shutdown the transmitter optical output. It is pulled up within the module with a 4.7K – 10 KΩ resistor. Its states are:
Low (0 – 0.8V): Transmitter on
(>0.8, < 2.0V): Undefined
High (2.0 – 3.465V): Transmitter Disabled
Open: Transmitter Disabled3) Mod-Def 0,1,2. These are the module definition pins. They should be pulled up with a 4.7K – 10K       resistor on the host board. The pull-up voltageshall be VccT or VccR .
Mod-Def 0 is grounded by the module to indicate that the module is present
Mod-Def 1 is the clock line of two wire serial interface for serial ID
Mod-Def 2 is the data line of two wire serial interface for serial ID4) LOS is an open collector/drain output, which should be pulled up with a 4.7K – 10KΩ resistor. Pull up voltage between 2.0V and VccT/R+0.3V. When high, this output indicates the received optical power is below the worst-case receiver sensitivity (as defined by the standard in use).Low indicates normal operation. In the low state, the output will be pulled to < 0.8V.5) VeeR and VeeT may be internally connected within the SFP module.6) RD-/+: These are the differential receiver outputs. They are AC coupled 100Ω differential lines which should be terminated with 100Ω (differential) at the user SERDES. The AC coupling is done inside the module.7) VccR and VccT are the receiver and transmitter power supplies. They are defined as 3.3V ±5% at the SFP connector pin. Maximum supply current is 300Ma. Recommended host board power supply filtering is shown below. Inductors with DC resistance of less than 1ohm should be used in order to maintain the required voltage at the SFP input pin with 3.3V supply voltage. When the recommended supply-filtering network is used, hot plugging of the SFP transceiver module will result in an inrush current of no more than 30Ma greater than the steady state value.VccR and VccT may be internally connected within the SFP transceiver module.

8) TD-/+: These are the differential transmitter inputs. They are AC-coupled, differential lines with 100Ω differential termination inside the module.

 

PRODUCT CERTIFICATION

 

QUALITY ADVANTAGE

 

COMPATIBLE BRANDS
CONFIGURATION INFORMATION
The form can be filled in the actual website url.

 

Generic Compatible 1000BASE-LX/EX SFP 1310nm 1/10/15/20/40km DOM Duplex LC SMF/MMF Optical Transceiver Module最先出现在www.philisun.com。

]]> Generic Compatible 1000BASE-SX SFP 850nm 550m DOM Duplex LC MMF Optical Transceiver Module https://www.philisun.com/products/1-25g-850nm-550m-lc-dx/ Thu, 06 Nov 2025 07:11:50 +0000 https://www.philisun.com/?post_type=product&p=2201 SFP-1.25-85-055-LCD

Generic Compatible 1000BASE-SX SFP 850nm 550m DOM Duplex LC MMF Optical Transceiver Module最先出现在www.philisun.com。

]]>
SPECIFICATIONS
Product ModelSFP-1.25-85-055-LCDManufacturer BrandPHILISUN
Package TypeSFPOptical ConnectorDuplex LC
Max Data Rateup to 1.25GbpsChannel Data Rate-
Effective Transmission Distance550M
Wavelength850nmOperating Voltage3.3V
Fiber TypeMMFCore Size50/125µm
Transmitter TypeVCSELReceiver TypeIDP
TX Power-9.5~-3dbmReceiver Sensitivity-17dbm
Digital Diagnostic Monitoring(DDM)YESReceiver Overload-3dBm
Power Consumption<1WProtocolsSFP MSA
Operating temperature(Commercial)0℃~+70℃Storage Temperature(Commercial)-40℃~+85℃
Operating temperature(Industrial)-40℃~+85℃Storage Temperature(Industrial)-40℃~+85℃

 

PRODUCT PRESENTATION
The PHILISUN 1000BASE-SX SFP Module is a compact multi-mode module designed for high-speed bi-directional optical data communication, supporting 550m transmission distance; these small form-factor pluggable (SFP) modules are compatible with Gigabit Ethernet 1000BASE-SX and Fiber Channel FC-PH-2 standards (100-M5-SN-1/100-M6-SN-1), featuring a 20-pin connector enabling hot-plug functionality. Optimized for multi-mode fiber operation at 850nm wavelength, the transmitter integrates a Vertical Cavity Surface Emitting Laser (VCSEL) compliant with IEC-60825 Class 1 laser safety standards, while the receiver incorporates an advanced optical detection system with integrated GaAs detector preamplifier (IDP) mounted in an optical header and precision limiting post-amplifier IC.

 

TRANSCEIVER SERIES PRODUCTS

 

PRODUCTION & TESTING EQUIPMENT

 

PERFORMANCE PARAMETER
Absolute Maximum Ratings
Parameter Symbol Min. Max. Unit
Storage temperature TS -4.0 +85 ℃
Supply voltage VCC -0.5 3.6 V
Operating relative humidity – – 95 %
Exceeding any one of these values may destroy the device immediately

 

Recommended Operating Environment
Operating case temperature Tc SFP-1.25-85-055-LCD 0 – +70 °C
-40 – +85
Power supply voltage Vcc 3.15 3.3 3.45 V
Power supply current Icc – – 300 mA
Date rate GBE – – 1.25 – Gbps
FC – 1.063 –

 

Performance Specifications – Electrical
Parameter Symbol Min. Typ. Max. Unit Notes
Transmitter
LVPECL inputs(Differential) Vin 500 – 2000 mVpp AC coupled inputs
Input impedance (Differential) Zin 85 100 115 ohm Rin > 100  kohm @ DC
TX_disable Disable – 2 – Vcc V –
Enable – 0 – 0.8 –
TX_FAULT Fault – 2 – Vcc+0.3 V –
Normal – 0 – 0.5 –
Receiver
LVPECL outputs (Differential) Vout 370 – 2000 mVpp AC coupled output
Output impedance (Differential) Zout 85 100 115 ohms –
RX_LOS LOS – 2 – Vcc+0.3 V –
Normal – 0 – 0.8 V –
MOD_DEF ( 2:0 ) VoH 2.5 – – V With serial ID
VoL 0 – 0.5 V

 

Optical and Electrical Characteristics
Parameter Symbol Min. Typical Max. Unit
50µm core diameter MMF L – 550 – m
Data rate – – 1.063/1.25 – Gbps
Transmitter
Center wavelength λC 830 850 860 nm
Spectral width (RMS) Δλ – – 0.85 nm
Average output power Pout -9.5 – -3 dBm
Extinction ratio ER 9 – dB
Rise/Fall time(20%～80%) tr/tf – – 260 ps
Total jitter TJ – – 0.43 UI
Output optical eye IEEE802.3z and ANSI fiber channel compliant
TX disable assert time t_off – – 10 us
Receiver
Center wavelength λC 760 – 860 nm
Receiver sensitivity Pmin -3 – -17 dBm
Receiver overload Pmax – – – dBm
Return loss – 12 – – dB
LOS de-assert LOSD – – -18 dBm
LOS assert LOSA -35 – – dBm
LOS hysteresis – 1 – – dB

 

FUNCTIONAL DESCRIPTION OF TRANSCEIVER

 

SFP TRANSCEIVER ELECTRICAL PAD LAYOUT

 

PIN FUNCTION DEFINITIONS
Pin Name Function Plug Seq. Notes
1 VeeT Transmitter ground 1 5)
2 TX Fault Transmitter fault indication 3 1)
3 TX Disable Transmitter disable 3 2) Module disables on high or open
4 MOD-DEF2 SDA 3 3) 2 wire serial ID interface.
5 MOD-DEF1 SCL 3 3) 2 wire serial ID interface.
6 MOD-DEF0 MOD_ABS 3 3) Grounded within the module.
7 Rate Select Not connect 3 Function not available
8 LOS Loss of signal 3 4)
9 VeeR Receiver ground 1 5)
10 VeeR Receiver ground 1 5)
11 VeeR Receiver ground 1 5)
12 RD- Inv. received data out 3 6)
13 RD+ Received data out 3 7)
14 VeeR Receiver ground 1 5)
15 VccR Receiver power 2 7) 3.3V ± 5%
16 VccT Transmitter power 2 7) 3.3V ± 5%
17 VeeT Transmitter ground 1 5)
18 TD+ Transmit data In 3 8)
19 TD- Inv. transmit data In 3 8)
20 VeeT Transmitter ground 1 5)
Notes:
1) TX Fault is an open collector/drain output, which should be pulled up with a 4.7K – 10KΩ resistor on the host board. Pull up voltage between 2.0V and VccT/R+0.3V. When high, output indicates a laser fault of some kinds. Low indicates normal operation. In the low state, the output will be pulled to < 0.8V.2) TX disable is an input that is used to shutdown the transmitter optical output. It is pulled up within the module with a 4.7K – 10 KΩ resistor. Its states are:
Low (0 – 0.8V): Transmitter on
(>0.8, < 2.0V): Undefined
High (2.0 – 3.465V): Transmitter Disabled
Open: Transmitter Disabled3) Mod-Def 0,1,2. These are the module definition pins. They should be pulled up with a 4.7K – 10K       resistor on the host board. The pull-up voltageshall be VccT or VccR .
Mod-Def 0 is grounded by the module to indicate that the module is present
Mod-Def 1 is the clock line of two wire serial interface for serial ID
Mod-Def 2 is the data line of two wire serial interface for serial ID

4) LOS is an open collector/drain output, which should be pulled up with a 4.7K – 10KΩ resistor. Pull up voltage between 2.0V and VccT/R+0.3V. When high, this output indicates the received optical power is below the worst-case receiver sensitivity (as defined by the standard in use).Low indicates normal operation. In the low state, the output will be pulled to < 0.8V.

5) VeeR and VeeT may be internally connected within the SFP module.

6) RD-/+: These are the differential receiver outputs. They are AC coupled 100Ω differential lines which should be terminated with 100Ω (differential) at the user SERDES. The AC coupling is done inside the module.

7) VccR and VccT are the receiver and transmitter power supplies. They are defined as 3.3V ±5% at the SFP connector pin. Maximum supply current is 300Ma. Recommended host board power supply filtering is shown below. Inductors with DC resistance of less than 1ohm should be used in order to maintain the required voltage at the SFP input pin with 3.3V supply voltage. When the recommended supply-filtering network is used, hot plugging of the SFP transceiver module will result in an inrush current of no more than 30Ma greater than the steady state value.VccR and VccT may be internally connected within the SFP transceiver module.

8) TD-/+: These are the differential transmitter inputs. They are AC-coupled, differential lines with 100Ω differential termination inside the module.

 

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Generic Compatible 1000BASE-SX SFP 850nm 550m DOM Duplex LC MMF Optical Transceiver Module最先出现在www.philisun.com。

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