A sheet handling apparatus includes a sheet folding unit configured to perform folding on a sheet; and a sheet stacking unit configured to stack the folded sheet on a sheet stacking surface having an inclined surface and a horizontal surface in order from upstream to downstream in a sheet conveying direction. The switch includes a twist handle, a torsion spring, a rotatable actuating element and a common axis. The passivation layer covers the source electrode and a portion of the drain electrode.