Very basic question about SMD parts PIN 1 location?

[cslammy]

I notice that the packaging for SMT is generally a reel type looking thing, maybe a bit like old camera film, but with sprocket holes only on one side.

Q, Is pin 1 always facing the sprocket holes? I ask because I bought some SMT TL-071s recently that didn't indicate anywhere where pin 1 was. Turns out it faced the sprocket holes; I found this out by trial and error.

Then I looked at the other SMD parts I had in my junk box, and it seemed to be the same thing, all the PIN1's faced the direction of the sprocket holes.

But I don't have that many SMT parts, so maybe this is "sampling error" not the audio kind?

Does anyone know?

[Grumble]

This is what I found...

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smd_tape_reel1[1].gif
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[AlanP]

Sometimes SMD ICs have no marking at all for pin 1, and instead, the side that pin 1 is on has a bevel on it. Google "SMD pin 1" for more.

SMD is not DIY friendly, the way that through-hole is.

[cslammy]