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nogueiraat last won the day on June 8 2021

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  1. I have a surge protector 220v, it uses 3 x 20mm varistors When a varistor bursts or explodes or at the end of its useful life, the protection is lost but the surge protector sockets continue to operate without protection? 3 varistors F-N, F-T, N-T
  2. On smartphones, if you constantly activate and deactivate WIFI and the mobile data network, does this cause stress and premature wear of the chips for these two functions?
  3. Li-Ion smartphone battery is better long term storage in 3,6v or 3,7v or 3,75v or 3,8v or 3,85v? my batteries is xiaomi BM20 and Nokia BP-5L
  4. I am in doubt if these two BM20 and BP-5L batteries are lithium or lithium polymer batteries or lithium ions? the batteries BP-5L are 1800mah and the BM20 battery is 2000 I charged them using this third photo charger for 75% after how many days do I need to recharge them again so they have long storage and durability? https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcTXi58e_qNfzMCh8Kjr8ghv_fioU1COM08HvA&usqp=CAU https://cf.shopee.com.br/file/247c2106d63885dc17be99b61824b8f1 https://www.dhresource.com/0x0/f2/a...rsal-cellphone-battery-lcd-charger-single.jpg https://www.dhresource.com/0x0/f2/a...mobile-universal-battery-charger-usb-port.jpg
  5. In NOR flash memory the data loss happens 20 years after the data recorded on the chip or not? it is possible to extend the retention above 20 years for the NOR M29W640FT 70N6 H flash memory
  6. Does this 2-year rule apply to any electrolytic capacitor manufacturer?
  7. How many years does the NOR flash memory M29W640FT 70N6 H retain data at 34ºC?
  8. manufacturers of NOR flash memory chips say that they retain data for up to 20 years but I am doubtful if it is possible to increase this retention estimate a lot? I write the firmware only once in the flash memory and store it I don't want to lose retention
  9. are electrolytic capacitors since 1990 different from today's electrolytic capacitors? does not use them before two years work in preserving them from disuse?
  10. my room the temperature varies 31-33º the humidity varies 55-70% this epcos information valid for other electrolytic capacitor manufacturers? in the 1990s were electrolytic capacitors or another type of capacitor used?
  11. Do you have any concrete information for the storage time of electrolytic capacitors in electronic circuits and manufactured since 1990? 1 month, 1 year, 2 years etc I don't mean new and spare electrolytic capacitors?
  12. Whenever I store electronic devices, will I have to change all the electrolytic capacitors before reconnecting them?
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