How long can transistors operate at maximum rating without failure?

Transistors can operate at their maximum rating for a limited amount of time before the risk of failure increases significantly due to thermal stress, degradation, and other factors. The typical operational longevity under maximum conditions is around 30,000 hours, which is considered a practical limit. This duration is based on various factors including temperature, voltage, and load conditions that affect transistor wear and reliability.

Operating a transistor consistently at its maximum rating may lead to premature failure as strain builds up over time. While manufacturers might provide specifications that suggest different limits based on ideal conditions, 30,000 hours is recognized as a reasonable compromise between operational efficiency and reliability in real-world applications.