The Main Causes Of Thick Film Resistor Failure

Thick film resistor failures are often caused by external environmental factors such as electrical and mechanical stresses and handling issues but seldom occur due to a failure of the resistive element itself. Failures are either classed as a degradation of performance or complete failure (usually as an open rather than a short circuit).

We consider several common causes of thick film resistor failure, many of which may not be immediately obvious to the circuit designer. Failure modes include:

·         Mechanical stress