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Multi Mode DDM LC SFP Fiber Optical Transceiver 1.25Gb/s 850nm 3.3V LC Connector

Multi Mode DDM LC SFP Fiber Optical Transceiver 1.25Gb/s 850nm 3.3V LC Connector

Multi Mode DDM LC SFP Fiber Optical Transceiver 1.25Gb/s 850nm 3.3V LC Connector

Product Details:

Place of Origin: shenzhen, China
Brand Name: Transcom
Certification: ISO FCC CE RoSH
Model Number: TS-SF-8512-02D

Payment & Shipping Terms:

Minimum Order Quantity: 1PCS
Packaging Details: Standard Package
Delivery Time: 3-5 work days
Payment Terms: T/T
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Detailed Product Description
Rate: 1.25Gb/s Voltage: 3.3V
Connector: LC Mode: Multi-mode


  • Up to 1.25Gb/s data links with DDM
  • VCSEL laser transmitter and PIN photo-detector
  • Hot-pluggable SFP footprint
  • Duplex LC/UPC type pluggable optical interface
  • Low power dissipation
  • Metal enclosure, for lower EMI
  • RoHS compliant and lead-free
  • Single +3.3V power supply
  • Compliant with SFF-8472
  • Case operating temperature

             Commercial: 0°C to +70°C

             Extended: -10°C to +80°C

             Industrial: -40°C to +85°C



TRANSCOM’s TS-SF-8512-02D Small Form Factor Pluggable (SFP) transceivers are compatible with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA). The transceiver consists of five sections: the LD driver, the limiting amplifier, the digital diagnostic monitor, the VCSEL laser and the PIN photo-detector .The module data link up to 550m in 50/125um multi mode fiber.


The optical output can be disabled by a TTL logic high-level input of Tx Disable, and the system also can disable the module via I2C. Tx Fault is provided to indicate that degradation of the laser. Loss of signal (LOS) output is provided to indicate the loss of an input optical signal of receiver or the link status with partner. The system can also get the LOS (or Link)/Disable/Fault information via I2C register access.

Absolute Maximum Ratings

Parameter Symbol Min. Typ. Max. Unit Note
Storage Temperature Ts -40   85 ºC  
Storage Ambient Humidity HA 5   95 %  
Power Supply Voltage VCC -0.5   4 V  
Signal Input Voltage   -0.3   Vcc+0.3 V  
Receiver Damage Threshold   +5     dBm



Recommended Operating Conditions

Parameter Symbol Min. Typ. Max. Unit Note
Case Operating Temperature Tcase 0   70 ºC TS-SF-8512-02D
-10   80 TS-SF-8512-02DE
-40   85 TS-SF-8512-02DA
Ambient Humidity HA 5   70 % Non-condensing
Power Supply Voltage VCC 3.13 3.3 3.47 V  
Power Supply Current ICC     280 mA  
Power Supply Noise Rejection       100 mVp-p 100Hz to 1MHz
Data Rate     1250/1250   Mbps TX Rate/RX Rate
Transmission Distance       550 M  
Coupled Fiber Multi mode fiber 50/125um MMF


Specification of Transmitter

Parameter Symbol Min. Typ. Max. Unit Note
Average Output Power POUT -9   -3 dBm  
Extinction Ratio ER 9     dB  
Center Wavelength λC 830 850 860 nm VCSEL Laser
Spectrum Bandwidth(RMS) σ     0.85 nm
Transmitter OFF Output Power POff     -45 dBm  
Differential Line Input Impedance RIN 90 100 110 Ohm  
Jitter P-P tJ     120 ps Note (1)
Output Eye Mask Compliant with IEEE802.3 z (class 1 laser safety)   Note (2)

Contact Details
Shenzhen Transcom Technology Limited

Contact Person: Iris

Tel: +8618924996170

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