SFP Transceiver Module 
The SFP transceiver supports dual data-rate of 1.25Gbps/1.0625Gbps and up to 120km transmission distance with single-mode fiber or 550m with multi-mode fiber.
The transceiver consists of two sections: The transmitter section incorporates a FP or DFB laser. the receiver section consists of a PIN photodiode integrated with a trans-impedance preamplifier (TIA).
All modules satisfy class I laser safety requirements. The optical output can be disabled by a TTL logic high-level input of Tx Disable.  Tx Fault indicates that degradation of the laser. Loss of signal (LOS) output indicates the loss of an input optical signal of receiver.
The standard serial ID information compatible with SFP MSA describes the transceiver’s capabilities, standard interfaces, manufacturer and other information. The host equipment can access this information via the 2-wire serial bus. For more information, please refer to SFP Multi-Source Agreement (MSA)
Features:
SFP package with LC connector
550m transmission with multi-mode fiber 
Up to 120Km transmission with single-mode fiber
+3.3V single power supply
LVPECL compatible data input/output interface
Low EMI and excellent ESD protection
laser safety standard IEC-60825 compliant
Compatible with CE/RoHS
Order Information:
 
Part Number 
Data Rate 
Wavelenth 
Distance 
Package 
Source 
 
SFP (155M, LC without DDM) 
 
ST-SP851M2L 
155M 
850 
2KM 
SFP 
VSCELPIN 
 
ST-SP311M20L 
155M 
1310 
20KM 
SFP 
FP+PIN 
 
ST-SP311M40L 
155M 
1310 
40KM 
SFP 
FP+PIN 
 
ST-SP551M40L 
155M 
1550 
60KM 
SFP 
DFBPIN 
 
SFP (1.25G, LC without DDM) 
 
 ST-SP85G05L 
1.25G 
850 
0.5KM 
SFP 
VSCEL,PIN 
 
 ST-SP31G2L 
1.25G 
1310 
2KM 
SFP 
VSCEL+PIN 
 
 ST-SP31G20L 
1.25G 
1310 
20KM 
SFP 
FP+PIN 
 
 ST-SP31G40L 
1.25G 
1310 
40KM 
SFP 
FP+PIN 
 
 ST-SP55G60L 
1.25G 
1550 
60KM 
SFP 
DFB+PIN 
 
 ST-SP55G80L 
1.25G 
1550 
80KM 
SFP 
DFB+PIN 
 
 ST-SP55G100L 
1.25G 
1550 
100KM 
SFP 
DFB+PIN 
 
SFP (155M, LC ,BIDI without DDM) 
 
ST-SPBD351M20L 
155M 
1310/1550 
20KM 
BIDI SFP 
FP+PIN 
 
ST-SPBD531M20L 
155M 
1550/1310 
20KM 
BIDI SFP 
FP+PIN 
 
ST-SPBD351M40L 
155M 
1310/1550 
40KM 
BIDI SFP 
FP+PIN 
 
ST-SPBD531M40L 
155M 
1550/1310 
40KM 
BIDI SFP 
DFB+PIN 
 
SFP (1.25G, LC ,BIDI without DDM) 
 
ST-SPBD35G10L 
1.25G 
1310/1550 
10KM 
BIDI SFP 
FP+PIN 
 
ST-SPBD53G10L 
1.25G 
1550/1310 
10KM 
BIDI SFP 
DFB+PIN 
 
ST-SPBD35G20L 
1.25G 
1310/1550 
20KM 
BIDI SFP 
FP+PIN 
 
ST-SPBD53G20L 
1.25G 
1550/1310 
20KM 
BIDI SFP 
DFB+PIN 
 
ST-SPBD35G40L 
1.25G 
1310/1550 
40KM 
BIDI SFP 
FP+PIN 
 
ST-SPBD53G40L 
1.25G 
1550/1310 
40KM 
BIDI SFP 
DFB+PIN 
 
SFP (155M/1.25G SC,BIDI ) without DDM 
 
ST-SPBD351M20S 
155M 
1310/1550 
20km 
BIDI SFP 
FP+PIN 
 
ST-SPBD531M20S 
155M 
1550/1310 
20km 
BIDI SFP 
FP+PIN 
 
ST-SPBD351M40S 
155M 
1310/1550 
40KM 
BIDI SFP 
FP+PIN 
 
ST-SPBD53G40S 
155M 
1550/1310 
40KM 
BIDI SFP 
FP+PIN 
 
ST-SPBD35G20S 
1.25G 
1310/1550 
20KM 
BIDI SFP 
FP+PIN 
 
ST-SPBD53G20S 
1.25G 
1550/1310 
20KM 
BIDI SFP 
DFB+PIN 
 
ST-SPBD35G40S 
1.25G 
1310/1550 
40KM 
BIDI SFP 
DFB+PIN 
 
ST-SPBD53G40S 
1.25G 
1550/1310 
40KM 
BIDI SFP 
DFB+PIN 
 
ST-SPBD35G60S 
1.25G 
1310/1550 
60KM 
BIDI SFP 
DFB+PIN 
 
ST-SPBD53G60S 
1.25G 
1550/1310 
60KM 
BIDI SFP 
DFB+PIN 
 
SFP2.125G/2.5G/4G,LC without DDM 
 
ST-SP2852G03L 
2.125/2.5G 
850 
300M 
SFP 
VSCEL+PIN 
 
ST-SP2312G2L 
2.125/2.5G 
1310 
2KM 
SFP 
FP+PIN 
 
ST-SP2312G20L 
2.125/2.5G 
1310 
20KM 
SFP 
DFB+PIN 
 
ST-SP2312G40L 
2.125/2.5G 
1310 
40KM 
SFP 
DFB+APD 
 
ST-SP2552G60L 
2.125/2.5G 
1550 
60KM 
SFP 
DFB+APD 
 
ST-SP2552G80L 
2.125/2.5G 
1550 
80KM 
SFP 
DFB+APD 
 
ST-SP2552G120L 
2.125/2.5G 
1550 
120KM 
SFP 
DFB+APD 
 
ST-SP2854G05L 
4.25G 
850 
500M 
SFP 
VSCEL+PIN 
 
ST-SP2314G10L 
4.25G 
1310 
10km 
SFP 
DFB+PIN 
 
1000Base-T Copper SFP 
 
ST-CSPGT 
10/100/1000M 
--- 
100M(UTP-5) 
Copper SFP 
--- 
 
ST-CSPGT1000 
1000M 
--- 
100M (UTP-5) 
Copper SFP 
--- 
 
ST-CSPT 
10/100M 
--- 
100M(UTP-5) 
Copper SFP 
--- 
 
GBIC (1.25G)  
  
  
  
  
  
 
ST-GC85G05L 
1.25G 
850 
500M 
GBIC 
VSCEL+PIN 
 
ST-GC31G20L 
1.25G 
1310 
20KM 
GBIC 
FP+PIN 
 
ST-GC31G40L 
1.25G 
1310 
40KM 
GBIC 
DFB+PIN 
 
ST-GC55G80L 
1.25G 
1550 
80KM 
GBIC 
DFB+PIN 
 
CWDM SFP (1.25G/2.5G) without DDM, XX=27, 29, 31…61, which 27=1270nm, 29=1290nm, and 61=1610nm 
  
  
  
  
  
 
ST-CWSPxxG80L 
1.25G 
(1470-1610nm) 
80km 
CWDM SFP 
DFB+PIN 
 
ST-CWSPxxG120L 
1.25G 
(1470-1610nm) 
120km 
CWDM SFP 
DFB+APD 
 ST-CWSPxx25G80L 
2.5G 
(1470-1610nm) 
80km 
CWDM SFP 
DFB+APD 