The source of resistor failures is generally due to outside environmental factors such as handling damage or external stress.
Ceramic resistor failure.
Electronic components have a wide range of failure modes these can be classified in various ways such as by time or cause.
Well known examples include lightning and static electricity.
Damage to thick film resistors due to surges.
A resistor is a passive two terminal electrical component that implements electrical resistance as a circuit element.
One often overlooked factor that affects 2010 and 2512 size ceramic substrate based chip resistors both thick and thin film is the potential for parts cracking or for solder joint failure.
Chip resistor failure modes.
Resistors act to reduce current flow and at the same time act to lower voltage levels within circuits.
Surges are large voltages or currents instantaneously applied to circuits.
Gideon analytical laboratories received an rnc70h1963fs resistor for electronic failure analysis.
Failures seldom occur due to a failure of the resistive element itself.
Chip resistor failure modes.
The only exception to this rule is the thin film.
High vibration or shock can also degrade the interface for large mass resistors.
The ballast resistor is commonly found in older vehicles because they did not have the benefit of circuit boards found in most of today s vehicles.