Time to Failure

Failures are dependent on a number of different factors including component type, size, design, weather conditions and geographical location. There is no guarantee that a component will fail according to the history of similar components.

The Time to Failure (TTF) distribution is a random distribution modeled to predict component failure as an entirely random event. This distribution is often parameterized based on historical data.

As such, the time when a component actually will fail cannot be fully predicted, and the TTF is merely an approximation of the actual failure based on previous observations.