When will damaged the transistor and ICs without using them?

[Willen]

Now I bought few components for further use like this:- 2n3904, 2n2222, BC547, 2n2219, 2n3553, 2sc1971, 555 Timer, 7805 Reg, LDR, different types of capacitors. I bought more than my need. Will they expire like food product after certain time even without using? Want to know actual fact.

 

[crutschow]

The only components in you list that is likely to deteriorate with time are any electrolytic capacitors. The rest will likely outlive you.

 

[magvitron]

Nah, they are made of silicon. Store them somewhere dry (use silica gel packets) and cool in an anti-static bag if you have one. They will be fine for a LOOOOONG time.

 

[tvtech]

Hi

Seal them in plastic vacuum bags. Why??

Because the metal parts/legs will corrode with time and render them unsolderable. Seen it lot's with many old unused spares.

tvtech

 

[audioguru]

Some electronic parts over there are fake! They do not meet the specs for a REAL one and corrode easily.

I think Willen is in India where nobody knows if a part is REAL or is a FAKE.

 

[Timescope]

Static sensitive devices like CMOS ics and mosfets can be damaged just by touching the pins. Special precautions are required when handling these devices.

https://www.electro-tech-online.com/threads/anti-static-protection-and-earthing-requirements.122699/?highlight=anti+static+precautions

https://www.electro-tech-online.com/threads/antistatic-band.17214/?highlight=anti+static+precautions

Timescope

 

[Willen]

Comparatively here I can find electronics part in very low cost than USA. So I guessed most of parts are fake. But there are no alternative so I bought. I can buy Four 2N2219 in $ 1 here . 2SC1971 can found on $ 1 only. The labele is "TL 2N3866", "GL2N2219" and "C1971" with logo of Mitshubisi. I hope even fake will work . I have no idea to check it is Fake or Real. Do you have?
Hope this simple components is not very sensitive on static charge.

 

[audioguru]

I buy name brand American and European parts from Digikey or Newark. They are not fakes.
I have used tens of thousands of transistors and ICs in my career and NONE has ever failed.