Almost all-electronic systems in an automobile, e.g. anti-lock brake system,
direct ignition system, airbag control system, wiper motors, etc. are susceptible
to damage from destructive voltage transients. AV varistors are transient suppressors
with temperature independent suppression characteristics enabling
protection from -55 °C to 125 °C.
AV varistors offer excellent transient energy distribution. AV varistors require
significantly less space and pad area than silicon TVS diodes, offering greater
circuit board layout flexibility for the designer.