Counterfeit Semiconductors 1

[glen65]

Hello,
I recently purchased some Toshiba power transistors
from a supplier. I noticed they looked a bit odd compared to the originals. I am aware that there is a problem with counterfeit semiconductors so I have decided to seek some opinions about these before I attempt installation. The links below show the photos I have taken of them. So the question is do the new devices appear to be genuine or counterfeit?
Thanks.

The original devices.

http://i29.photobucket.com/albums/c264/Genx65/toshibatrans1.jpg

http://i29.photobucket.com/albums/c264/Genx65/toshibatrans2.jpg

The new devices.
These are the replacements.

http://i29.photobucket.com/albums/c264/Genx65/toshibatrans3.jpg

http://i29.photobucket.com/albums/c264/Genx65/toshibatrans4.jpg

 

[itsmoked]

Boy.. That will be a problem for anyone to tell you other than the manufacturer. I would contact Toshiba or a Toshiba rep and provide these links to them. They are generally more than happy to help because counterfits cause them great harm in several ways.

Keith Cress
Flamin Systems, Inc.-

http://www.flaminsystems.com