- Model: SPT-P131G-20D
1.25gbps 1310nm SM Duplex LC 20km Fiber Optic SFP Module
The SFP transceivers are high performance, cost effective modules supporting dual data-rate of 1.25Gbps/1.0625Gbps and 20km transmission distance with SMF.
The transceiver consists of three sections: a FP laser transmitter, a PIN photodiode integrated with a trans-impedance preamplifier (TIA) and MCU control unit. All modules satisfy class I laser safety requirements.
The transceivers are compatible with SFP Multi-Source Agreement (MSA) and SFF-8472. For further information, please refer to SFP MSA.
Features of 1.25g SFP Module
● Dual data-rate of 1.25Gbps/1.063Gbps operation
● 1310nm FP laser and PIN photo detector for 20km transmission
● Compliant with SFP MSA and SFF-8472 with duplex LC receptacle
● Digital Diagnostic Monitoring: Internal Calibration or External Calibration
● Compatible with SONET OC-24-LR-1
● Compatible with ROHS
● +3.3V single power supply
● Operating case temperature:
Standard: 0 to +70°C
Industrial: -40 to +85°C
Applications
● Gigabit Ethernet
● Fiber Channel
● Switch to Switch interface
● Switched backplane applications
● Router/Server interface
● Other optical transmission systems
Specifications
| Product NO. | SPT-P131G-20D |
| Wavelength | 1310/1550nm |
| Fiber Type | Single mode |
| Transmission Distance | 10KM/20KM |
| Operating temperature | Standard: 0 to +70°C Industrial: -40 to +85°C |
| Date rate | 1.25Gbps/1.063Gbps |
| Connector | Duplex LC |
Optical and Electrical Characteristics
SPT-P131G-20D: (FP and PIN, 1310nm, 20km Reach)
| Parameter | Symbol | Min | Typical | Max | Unit | Notes | ||
| Transmitter | ||||||||
| Centre Wavelength | λc | 1260 | 1310 | 1360 | nm | |||
| Spectral Width (RMS) | σ | 4 | nm | |||||
| Average Output Power | Pout | -9 | -3 | dBm | 1 | |||
| Extinction Ratio | ER | 9 | dB | |||||
| Optical Rise/Fall Time (20%~80%) | tr/tf | 0.26 | ns | |||||
| Data Input Swing Differential | VIN | 400 | 1800 | mV | 2 | |||
| Input Differential Impedance | ZIN | 90 | 100 | 110 | Ω | |||
| TX Disable | Disable | 2.0 | Vcc | V | ||||
| Enable | 0 | 0.8 | V | |||||
| TX Fault | Fault | 2.0 | Vcc | V | ||||
| Normal | 0 | 0.8 | V | |||||
| Receiver | ||||||||
| Centre Wavelength | λc | 1260 | 1580 | nm | ||||
| Receiver Sensitivity | -24 | dBm | 3 | |||||
| Receiver Overload | -1 | dBm | 3 | |||||
| LOS De-Assert | LOSD | -26 | dBm | |||||
| LOS Assert | LOSA | -36 | dBm | |||||
| LOS Hysteresis | 1 | 4 | dB | |||||
| Data Output Swing Differential | Vout | 400 | 1800 | mV | 4 | |||
| LOS | High | 2.0 | Vcc | V | ||||
| Low | 0.8 | V | ||||||
Mechanical Dimensions
| Part Number | Product Description |
| SPT-P131G-20 | 1310nm 1.25Gbps 20km 0ºC ~ +70ºC Single-mode Duplex lc SFP Module Fiber Optic Transceiver |
| SPT-P131G-20D | 1310nm 1.25Gbps 20km 0ºC ~ +70ºC DDM,Single-mode Duplex lc SFP Module Fiber Optic Transceiver |
| SPT-P131G-20TD | 1310nm 1.25Gbps 20km -40ºC ~+85ºC DDM,Single-mode Duplex lc SFP Module Fiber Optic Transceiver |
| SPT-P131G-20T | 1310nm 1.25Gbps 20km -40ºC ~+85ºC Single-mode Duplex lc SFP Module Fiber Optic Transceiver |
