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Please could someone tell me if there is a general rule for the shelf life of electronic components? Is a ten year old IC still useable? How long can capacitors be stored? What I would really like is a table showing the type of component next to the maximum age at which it is still useable...

Please could someone tell me the purpose of the rubber pad on the base of some radial capacitors? Is it desirable to squash the pad to minimise rocking of the capacitor once inserted in to a PCB? Thanks.

Hi All, Does anyone know if it is possible to Poka Yoke machine maintenance? It's all too easy to tick a box to indicate that the oil levels have been checked, without actually doing it. I need to introduce a system whereby it is impossible not to perform the necessary machine maintenance...

Hi All, I have a problem with a certain type of electrolytic capacitor currently being returned from our customer because of leakage. It is a 1000uF, 10Volt type. They all have the same "N3" (March 2001) date code and were made by the same Company in the same factory. They have been in use...