What is the lifespan of a component when it is not used? Doesn’t it mean that it has an infinite lifespan if it has not been used or opened?
There are strict standards for aerospace electronic components, and the effective storage period is 3-5 years. Interestingly, the storage life of semiconductors in some countries is 25 years, because the design life of strategic nuclear weapons is 30 years.
JANS2N2219AL, it came from 1980. Time passed quietly and came to 1998. After it had been waiting quietly in the warehouse for 17 years, someone picked it and took out 10 tubes for a 6000h full power life test. The results show that it has no impact on reliability. It can be seen that long-term storage is not a problem.Time flies, and in 2006, eight years later, the electrical parameters of all samples were retested. The hFE parameters were all consistent with those in 1998, with no obvious changes, proving that the aerospace-grade devices performed well under laboratory conditions. Extremely long storage life.
In addition, JTX2N2405, which has been stored for 32 years, also passed strict testing. 10 sample tubes were randomly selected for weldability testing, and all passed.
The lifespan of semiconductors is beyond your imagination. Past experiments tell us that chip storage life can indeed reach more than 30 years. However, these conditions will reduce its storage life.Mechanical or electrical damage or degradation during transportation and storage.Failure to take electrostatic protection measures ESD will kill your chip.during storage, moisture has penetrated into the product used to seal it, and your original has become damp.Pin oxidation due to improper storage.
The key factor in maintaining the life of your components is proper storage and protection.
