Long-term Capacitor storage questions

Click For Summary
SUMMARY

The discussion centers on the longevity and maintenance of aluminum electrolytic capacitors in electronic devices from the early 90s, particularly in environments with temperatures of 33-35C and humidity levels of 57-67%. It is established that devices can remain powered off for up to 100 years without capacitor failure due to drying out. However, periodic energization may still necessitate capacitor replacement, influenced by factors such as the capacitor's temperature, design characteristics, and manufacturer quality. The discussion also highlights the presence of a troll who repeatedly poses similar questions.

PREREQUISITES
  • Understanding of aluminum electrolytic capacitors and their failure modes
  • Knowledge of electronic device maintenance and longevity
  • Familiarity with environmental factors affecting electronic components
  • Awareness of manufacturer reputation and component quality
NEXT STEPS
  • Research the impact of temperature and humidity on capacitor lifespan
  • Learn about capacitor replacement strategies for vintage electronics
  • Explore best practices for storing electronic devices long-term
  • Investigate the differences in capacitor quality among various manufacturers
USEFUL FOR

Electronics enthusiasts, vintage device collectors, and technicians involved in the maintenance and restoration of older electronic equipment will benefit from this discussion.

augustaa88
Messages
1
Reaction score
0
where I live, the temperature varies between 33-35C and humidity ranges from 57-67% without rain, and I have electronic devices manufactured in the early 90s. What is the maximum possible interval for me to energize these all devices and for at least how many minutes to prevent failures in the aluminum electrolytic capacitors caused due to disuse??
 
Engineering news on Phys.org
This is a bit of a troll like question.

If you can keep the devices turned off for 100 years, you will never have a problem with the electrolytic capacitors drying out.

If you turn the equipment on when you need it, you may sometimes have to replace one or more electrolytics. You will have to replace an electrolytic capacitor now and then anyhow, even if you turn it on sometimes.
 
The temperature that is important is that of the capacitor, not your temperature. Also, the service life can vary by an order of magnitude depending on design characteristics. Another point is the reputation of the manufacturer and the quality of the components they use. Your devices are about 30 years old, and not knowing how long they were used is anybody's guess on what life is left.
 
  • Like
Likes   Reactions: berkeman
Baluncore said:
This is a bit of a troll like question.
Your instincts are good. Turns out this is a sockpuppet of a banned member who keeps asking this type of question here (over and over and over...). This version of him is no longer here, so I'll close off this thread.
 
  • Like
Likes   Reactions: Baluncore

Similar threads

Doubt about old electrolytic capacitors
  • · Replies 7 ·
Replies
7
Views
2K
Challenge Math Challenge - December 2018
  • · Replies 67 ·
3
Replies
67
Views
16K
Why is the U-2 nicknamed the Dragon Lady?
  • · Replies 4 ·
Replies
4
Views
9K