This small and lightweight UBEC features a high efficiency switching mode BEC, providing better heat dissipation when compared to linear voltage regulation. The shielded PCB design and output EMF coil provide a stable, low noise voltage output. The HKU5 also features built-in reverse polarity protection.
The best practise is to connect all power connections at one point (star type as opposite to tree type wiring). So connecting to power distribution board is a good place.. Other thought. This bec is low current .. so you do not need 3.5mm bullets which is ok up to 30-40A ... you may smaller ones like 2mm to save weight.
I connect the input of ubec and output of battery in a wrong way... which mean red connected to black and black connected to red. Suddenly, it sparked and now it is broken. It doesn't work at all. It's better than exploding :D
Purchased three of these for ignition voltage regulator duty in my large scale gas planes, when paired up with the turnigy 2100 Lipo receiver pack, you can run an engine all day versus the 4 cell NiMH packs. Working great in my planes, the 3A version works great too, but is a little longer and slightly heavier, but cost less. Next order, I will order more for spares for future projects.