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16.05.2017, 22:16 Uhr
Rolli
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The number "P" is the checksum/ check digit of the part number itself. P depends only from xx, yyy and zzzz.
The issue level was set behind this number. It consists of a number and a lower case letter. The number was changed, if the modification was extensive and the letter was changed, if the modification was small.
example: 05-489-2010-5 0a --> 05-489-2010-5 0b
If it is a double sided board there is inserted a "B" for the upper side layout or a "L" for the bottom side layout between the part number and the issue level: 05-489-2010 B 0a.
At the time the ETR220 was developed there was used the older part number system:
example: 220-317-012a
Best regards from Schaudepot Sömmerda
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Wer Phantasie hat, ist noch lange kein Phantast |
