-Original content, please do not reprint.
Some chips use binary to prevent counterfeiting to mark the date code. For example, some components of ON brand are marked like this. Today, let's look at how distinguishes the ON's date code.
It is difficult to identify the year marked with the code date ，For example, ON components, SOT-23 SOT-223 SOT-256, the named specification explains the position of the year and the cycle is clear, but when you see the real object, you always see the letter, without the year and month.
How To Read ON Date Code?
Be reason is in order to prevent fraud, many components date code in the form of code, is not flaws in the year of element code, special case needs through the approval of the decoding file application, so lead to many elements on the market decoding is a mystery, if not through the component screen printing code to identify the true and false actually these are code, only need to know the details of the annotation can understand, like binary control table, find the corresponding code control, can solve the element screen year with week.
Let's show you a comparison table.Different year code and week code can be found and printed in this table. Let's see the last example.
• NCP3063BDR2G:The YW position of this model is the year and week. After ZN of the corresponding model finds the code of the year cycle, it can go back to the table and decode. Year Z corresponds to the second half of year 13 in the table, and N for the 40 weeks of the second half of the year. During the insurance period, let's see whether the decoding is correct, the label year is
• This decoding table is only decoded until 2017, so how to decode the components after 2017? We found a lot of control tables, respectively.
• So where did the decoding table go after 2017?On September 19,2016, Anson Semiconductor (ON) and Fairchild Semiconductor (FAIRCHILD) jointly announced that Anson Semiconductor completed the acquisition of Fairchild with $2.4 billion in cash. Is it the reason for the integration of this acquisition and the different approach to the year of screen printing? Or is it specially for anti-counterfeiting of the year of the yuan price of partial decoding encryption?
