Thin film resistors with through-hole construction are the most common type of resistor available. They consist of a thin metal film layer of resistive material deposited onto an insulating substrate and then affixed to a lead frame. The lead frame itself is typically composed of a metal alloy, such as copper or aluminum. The thin film of metal is usually composed of metal oxides, such as nickel chromium or tantalum nitride.
The most common type of through hole resistor is the metal film resistor, which has a low tolerance range of 1 - 10%. This type of resistor provides excellent stability and temperature stability. The tight tolerance range allows for reliable and highly accurate readings in electronic circuits. In addition, metal film resistors offer excellent power handling capabilities.
Through-hole resistors are the most common choice in most electronic applications, as they are cost-effective, reliable, and easy to mount. However, for high power applications, or for applications where tight tolerance range is required, other types of resistors may be preferred.