Through-Hole Resistors are devices which oppose the flow of current. They have two wire terminals which are designed to be inserted and soldered to a printed circuit board (PCB) or are used in a breadboard. The characteristics are resistance (0 ohms to 500 G ohms), tolerance (jumper, ±0.001% to ±5%), power (watts), and composition (carbon composition, carbon film, ceramic, metal element, metal film, metal foil, metal oxide film, thick film, thin film, or wirewound).