Circuit protection device

A circuit protection device, comprising:

• a temperature sensitive resistor element having a positive temperature coefficient (PTC) layer, a first electrically conductive layer and a second electrically conductive layer, wherein:
• the PTC layer has a first surface and a second surface opposite to the first surface;
• the first electrically conductive layer is disposed on the first surface, and has a first electrically conductive block, a second electrically conductive block and a trench, wherein the first electrically conductive block is electrically isolated and spaced apart from the second electrically conductive block at a distance by the trench;
• and
• the second electrically conductive layer is disposed on the second surface;
• a dielectric layer disposed in the trench, wherein:
• the dielectric layer extends along a first direction between the first electrode and the second electrode, and the first direction is parallel to the first electrode and the second electrode;
• and
• the trench has a bottom surface and a sidewall, and the bottom surface extends on the first surface and non-perpendicularly connects to the sidewall;
• a first electrically insulating layer disposed on the first electrically conductive layer and covering the dielectric layer;
• a first electrode and a second electrode disposed on the first electrically insulating layer, and electrically connected to the first electrically conductive block and the second electrically conductive block, respectively;
• and
• a first conductive member, a left end and a right end opposite to the left end, wherein the left end has a first notch extending across the first electrically conductive layer, the PTC layer and the second electrically conductive layer, and the first conductive member is disposed in the first notch.