Chip resistor and electronic equipment having resistance circuit network

An electronic device comprising:

• a substrate having an element forming surface and side surfaces;
• a plurality of resistor bodies formed on the element forming surface of the substrate;
• wiring films electrically connecting the plurality of resistor bodies;
• a protective film covering an upper surface of the plurality of resistor bodies, the side surfaces of the substrate, and the wiring films continuously, a first portion of the protective film on the upper surface of the plurality of resistor bodies having substantially a same thickness as a second portion of the protective film on the side surfaces of the substrate;
• external connection electrodes connected to the wiring films;
• and
• a plurality of fuses that are formed on the substrate, are each interposed between the plurality of resistor bodies and at least one of the external connection electrodes, and are configured to disconnect each of the plurality of resistor bodies, the plurality of fuses including trimming regions which are arranged in a straight line.