Integrated over-current protection device

An integrated over-current protection device, comprising:

• a positive temperature coefficient (PTC) component that includes a first PTC body and that has a first surface and a second surface opposite to said first surface;
• a first conductive unit including a first metal layer which is disposed on said first surface, and which includes a first electrode and a first conductive pad electrically insulated from said first electrode;
• a second conductive unit including a second metal layer which is disposed on said second surface, and which includes a second electrode and a second conductive pad electrically insulated from said second electrode;
• a first conductive via that extends through said first conductive unit and said PTC component to electrically connect said first electrode to said second conductive pad;
• and
• a second conductive via that extends through said second conductive unit and said PTC component to electrically connect said second electrode to said first conductive pad,
• wherein:
• said second conductive unit further includes:
• a first insulating layer disposed between said PTC component and said second metal layer, and
• a third metal layer disposed between said PTC component and said first insulating layer;
• and
• said first conductive via further extends through said first insulating layer and said third metal layer.