I have sourced several Hobbyking Turnigy 5 amp UBEC for projects. My current project a Hobbyking Osprey will use one of these ubec units. I will use the 6 volt output to power the 20kg force servo for the rudder.
Reading online on this model and several others that are sold under different names (Hobbywing and Hifei) it seems that the 5 amp output is a little misleading under load and apparently under load the unit can become quite hot. One report states to remove the shrink wrap and place the pcb on a cooling plate using heatsink compound. Also states not to use velcro to attach the unit most likely due the heat involved.
Now my question, would the unit in usage actually see such a high current draw, please and would the amperage load be sustained? The input wires are quite a small gauge and most likely are barely sufficient to carry such a load. I have no idea what load the ESC or servo would draw. The report above about sustained heat was under test with a constant load and not a real time event. Am I reading too much into the capabilities of this unit please.
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