The i6A non-isolated DC-DC converter has the same 1/16th brick footprint as the isolated device in the same format, and is therefore a drop-in replacement. This video explains when a non-isolated device can be used.
Although the i6A is non-isolated, for a system operating from the AC mains, the AC-DC power supply already supplies the primary to secondary isolation with safety certification to the IEC standards. Using an isolated DC-DC converter therefore offers no benefit in most applications – the simple topology and up to 98 percent operating efficiency of the non-isolated i6A, saves cost and reduces waste heat.
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