3312 - 2 mm SMD Trimming Potentiometer

AVHT Series - High Temperature Automotive Grade Varistors

Specifications are subject to change without notice.

Users should verify actual device performance in their specific applications.

Reliability - Lifetime

Pb-free Wave and IR Reflow Soldering

In general, reliability is the ability of a component to perform and maintain its functions in routine circumstances, as well as in hostile or

unexpected circumstances.

The Mean life of the AV series is a function of:

• Factor of Applied Voltage

• Ambient Temperature

Mean life is closely related to Failure rate (formula).

Mean life (ML) is the arithmetic mean (average) time to failure of a component.

Failure rate is the frequency with which an engineered system or component fails, expressed, for example, in failures per hour. Failure

rate is usually time dependent, and an intuitive corollary is that the rate changes over time versus the expected life cycle of a system.

Failure rate formula - calculation

Λ

=

ML [h]

[fit]

FAV - Factor of Applied Voltage

FAV =

Ta (°C)

AVHT Series

Mean Life on Arrhenius Model

120 100

80

60

40

20

1000

Years

100

10

1