small electrical fuse in white holder and black linear fixed voltage regulator on blue pcb

16x9 ampere black block blue blur board bokeh breaker capacitor circuit closeup colored component connection current cutout design detail device disassembled electric electrical electricity electronic electrotechnics electrotechnology element energy engineering equipment fixed fuse gold hardware holder industry laboratory layer layout limiting linear macro metal miniature mount nano network nobody overcurrent part pcb plastic power printed protection rated regulator repair resistor safeguard safety science service small smd socket supply surface tech technology terminal tin voltage white