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What this colors mean ?
What this colors mean ?
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Old 30th May 2015, 10:31 AM   #1
el156 is offline el156  Portugal
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Default What this colors mean ?

Does someone know the meaning of this colors in the back of this transistors ?
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Old 30th May 2015, 10:36 AM   #2
sq225917 is offline sq225917  United Kingdom
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Looks like someone has measured them for matching.
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Old 30th May 2015, 10:37 AM   #3
sajti is online now sajti  Hungary
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It was selected to different group, usually by the Idss.

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Old 30th May 2015, 11:10 AM   #4
el156 is offline el156  Portugal
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I bought them like that years ago, so looks like they are factory matched.
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Old 30th May 2015, 12:26 PM   #5
Elvee is offline Elvee  Belgium
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Quote:
Originally Posted by el156 View Post
Does someone know the meaning of this colors in the back of this transistors ?
Marking for internal use, like traceability, unpublished performances, plant, wafer, etc.
Not useful for anybody else, except if you have access to insider's information
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