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sunrise 23rd September 2005 07:56 PM

Can anyone tell me how to tell if 2sk389 are genuine or not.
I have bought one pair in local shop and they have two row marking

first row: k389
second row: BL.4F

Dot in the second row is not down but up. How could I now the name of the manufacturer?


richwalters 23rd September 2005 08:06 PM


wrenchone 24th September 2005 03:33 AM

Toshiba - Hitachi/ Renesas are the makers for the nice lateral power MOSFETs, but Toshiba is the manufacturer for 2SJ74/2SK170 and 2SJ109/ 2SK389.

sunrise 24th September 2005 08:00 AM

thank You very much:smash: :D

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