• Jaki transil / identyfikacja - Seagate ST500DM002

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#1 Jaki transil / identyfikacja - Seagate ST500DM002


by kuna789 15 September 2022, 10:14
Witam serdecznie,

Mam uszkodzoną elektronikę dysku Seagate ST500DM002, śmierdzi spalenizną.
Elektronika 100535704 REV C.

Udało mi się zidentyfikować uszkodzony transil + mały rezystor oraz dodatkowo drugi rezystor zaraz za wejściem zasilania.
Proszę o podpowiedź co mogę wsadzić w miejsca uszkodzonych elementów, ktoś ma jakiś schemat?

Szukałem transila po oznaczeniu ale nie mogę zidentyfikować elementów. reszta elementów nie ma oznaczeń.

Z góry dziękuję za pomoc.

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Re: Jaki transil / identyfikacja - Seagate ST500DM002


by Google Adsense [BOT] 15 September 2022, 10:14

#2 Re: Jaki transil / identyfikacja - Seagate ST500DM002


by matic 19 September 2022, 08:34
Hello!

Damaged transil is NSA5.0AT3G. Datasheet at the attachment.
You can replace it with any other 5V uni-directional TVS diode (for example SMAJ5.0A).

Another damaged component is definitely not a resistor, but most likely a Ferrite bead. Use a ferrite bead with a value around 100-200Ω @ 100MHz, package 0603 with a current rating 1A at least.



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Re: Jaki transil / identyfikacja - Seagate ST500DM002


by Google Adsense [BOT] 19 September 2022, 08:34
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