The POEMQ78X00 C/D series of modules are designed to extract power from a conventional twisted pair Category 5 Ethernet cable, conforming to the IEEE 802.3af Power-over-Ethernet (PoE) standard. IEEE 802.3af allows for two power options for Category 5 cables and the MQ78X00C/D have two pairs of power inputs pins: - VA1&2 and VB1&2 to accommodate this. The MQ78X00C/D signature and control circuit provides the PoE compatibility signature and power classification required by the Power Sourcing Equipment (PSE) before applying up to 15W power to the port. The MQ78X00C/D is preset to Class 0. The high efficiency DC/DC converter operates over a wide input voltage range and provides a regulated low ripple and low noise output. The DC/DC converter also has built-in overload and short-circuit output protection. 

 Wide operating voltage: 36V ~ 57V 

 Output Current : 12V, 1.1A 

 Output voltage ripple: 150mVPP, (12V@1.1A) 

 High Efficiency (input 48V, Load12V@1.1A) 

      85%, MQ78X00-120 

      82%, MQ78X00-120LP 

 Overcurrent /short circuit protection 

 External 12V passby input 

 High reliability: designed to meet 500K hour MTBF 

 Standard 38mm*38mm size with total height: 

       Standard version: 16.0 mm(max);  

       Low profile version: 10.8mm(max) 

 No derating to +TBD℃(inside closed box) 

 UL/IEC/EN60950 compliant 

 RoHS Compliant available 
 

 IP Camera 

 IP Phone 

 Wireless Access Point 

 Video Supervisory