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  • SMD IC orientation

    How do we find pin 1 on a SMD chip with no dot or end notch? Can we assume pin 1 is at the lower left with respect to designation printing?

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    It's weird, because it WAS working fine.....

  • #2
    Originally posted by Randall View Post
    How do we find pin 1 on a SMD chip with no dot or end notch? Can we assume pin 1 is at the lower left with respect to designation printing?
    Can you see a slightly beveled edge on one side of the package? That's the pin 1-4 side.
    It looks like the bottom edge on your pictures so pin 1 would be bottom left.

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    • #3
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      • #4
        Who needs glasses when you see things we donīt?
        Juan Manuel Fahey

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        • #5
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          • #6
            Originally posted by Dave H View Post
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            Is this industry standard or just NTE?
            Thanks,
            nosaj
            soldering stuff that's broken, breaking stuff that works, Yeah!

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            • #7
              Is this industry standard or just NTE?
              It''s the standard. Pin 1 is the lower left corner when facing correctly what's printed on the IC.

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