closeup of various electronic components on a printed wiring board

switch integrated circuit electronic component capacitor closeup micro chip pcb microchip green board electrical engineering dip package resistor electromechanics manual break plastic disconnect contact semiconductor printed wiring copper layer throughhole technology electric power energy device spare equipment ceramic styroflex color code electrotechnology electrotechnics industry repair service ewaste recycling white black orange colored polystyrene film slide pin input output connect electricity shop disassembled industrial electromechanical science disposal red yellow brown