DC-DC Passive Power over Ethernet Injector

Formely MIT-14-48


Key Features


  • Suits solar power systems

  • 9-36VDC systems

  • 48VDC 0.5A Passive PoE output (802.3af Mode B)

  • Dual block inputs for connecting 2 power sources

  • Short Circuit, Over Current and Reverse/Over Voltage protection

  • High temperature operation

  • Ideal for Ubiquiti 48VDC devices.




  • MSTronic's series of DC to DC converters are a low cost and high reliability solution for those requiring 48VDC Power over Ethernet voltage from a 12, 18, or 24V battery system

  • They have an integrated POE injector to apply 48VDC to Ethernet cable in 802.3af Mode B (Passive) PoE pin arrangement (no handshake)

  • They have two isolated inputs for connecting 2 power sources, like a primary and backup power source

  • A metal enclosure model is available for industrial applications

  • They accept data-in to a shielded RJ45 Jack and provide data-out and POE power on the shielded RJ45 output jack

  • They work by supplying power on the unused Ethernet pins 4,5(V+) and 7,8(V-).


Electrical Specifications


  • Input voltage: 9 to 36V DC

  • Input current: 2.61A max at 12V DC at F.L 1.26A max at 24V DC at F.L

  • Output voltage and current: + 48V non-802.3af

  • Maximum load: 0.5A

  • Min load: 0.01A

  • Load regular percentage: 5%

  • Line regular percentage: 1%

  • Ripple percentage: 1%

  • Noise percentage: 1%

  • Ripple and noise bandwidth: from DC to 20MHz

  • Terminated with 47uF capacitor and 0.1uf MPE capacitor of proper polarity

  • Efficiency: 75% min at 12V/24V DC, input at F.L Short-circuit protected output Short GND terminal to prevent damage to power supply Auto-recovery Input fuse protection

  • Current limit: 120 to 160% at 9V to 36V DC FCC Class B standard

  • Operating temperature: -25 to 50 degree Celsius

  • Storage temperature: -40 to 80 degree Celsius


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Shipping Weight 0.1700kg
Shipping Width 0.123m
Shipping Height 0.050m
Shipping Length 0.085m
Shipping Cubic 0.000314000m3