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SA555: the difference of NA555, NE555, SE555 and SA555

Noriyuki Takahashi
Genius 11020 points
Part Number: SA555
Other Parts Discussed in Thread: SE555, , NE555, NA555

Hi team,

Could you tell what makes NA555, NE555, SE555 and SA555's operating tempreraure ranges different?

NA555, NE555, SE555 and SA555 look similar but customer wants to understand what makes NA555, NE555, SE555 and SA555's operating tempreraure ranges different.

Regards,

Noriyuki Takahashi

  • 0
    TI__Mastermind 25190 points

    Hello,

    These devices have a very long history, close to 50 years. The biggest contributing factor is the changes in semiconductor industry filed over many decades. At one time, 0C to 70C was standard. All four prefixes survived all of this. 

    Best Regards,

    Chris Featherstone

  • 0 in reply to Chris Featherstone
    TI__Genius 11020 points

    Hi Chris

    Does NA, NE, SA, and SE555 have different designs for the internal structure, materials used, etc.? Or is the design of the parts the same, but only the test conditions have changed to match the temperature specification?

    Regards,

    Noriyuki Takahashi

  • 0 in reply to Noriyuki Takahashi
    TI__Mastermind 25190 points

    Noriyuki,

    I am currently looking into this and will respond by tomorrow. 

    Best Regards,

    Chris Featherstone

  • 0 in reply to Noriyuki Takahashi
    TI__Mastermind 25190 points

    Noriyuki,

    I have looked at ATSS and the die is different for each variant. The temperature that is tested for final test is at room temperature and the temperature range is assured through validation. If the customer needs a particular temperature range, our recommendation is to use the correct prefix corresponding to the temperature range they need. 

    Best Regards,

    Chris Featherstone