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6-Lead Side Concave LED Package

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zentekfr View Drop Down
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    Posted: 21 Sep 2022 at 2:56am
Hello!

I'm currently drawing a footprint for the KPF-3236RGBC-11 from Kingbright

There is no option "6 pins" in the dropdown list of the "Side Concave Package". There are only 2 and 4.

If I go and try "Chip Array, 2-Sided Plat and Concave", then there is a 6-pin option but no "LED" family, which results in inconsistent naming and incorrect 3D model. 

For the KPTF-1616RGBC-11, all went OK because it's a 4-lead package.

What am I supposed to do?

Justin
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tom H Quote  Post ReplyReply Direct Link To This Post Posted: 21 Sep 2022 at 8:32am
The KPF-3236RGBC-11 from Kingbright needs to be created in FP Designer for now. 

It will take some time to add a new component family.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote zentekfr Quote  Post ReplyReply Direct Link To This Post Posted: 21 Sep 2022 at 1:36pm
Tom,

Can't the 6-lead variant of Side Concave Package be derived from the existing ones easily?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tom H Quote  Post ReplyReply Direct Link To This Post Posted: 21 Sep 2022 at 2:48pm
Yes, we can probably add a 6-pin version but the 3D STEP model would look similar to the 4-pin version. 

We're also ready to release V2022.12 with new features tomorrow. 

We would need a couple days to add this new component family and test it and create a V2022.13 pre-release for you to test. 

That will be next week.

 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote zentekfr Quote  Post ReplyReply Direct Link To This Post Posted: 22 Sep 2022 at 8:21am
OK great!

By the way, the default 4-lead side concave LED package does not have its pin 1 at the lower left corner. Is this expected?

LEDSC4P85:


SOL4P145:

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tom H Quote  Post ReplyReply Direct Link To This Post Posted: 22 Sep 2022 at 9:30am
Pin 1 is in the Upper Left corner because if you select the 2-pin version Pins 3 & 4 go away. 

Pin 1 on all 2-pin footprints is Left. 

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Post Options Post Options   Thanks (0) Thanks(0)   Quote zentekfr Quote  Post ReplyReply Direct Link To This Post Posted: 23 Sep 2022 at 4:19am
Actually, there are two different concerns in my question: pin 1 location and pins numbering.

Quote Pin 1 is in the Upper Left corner because if you select the 2-pin version, pins 3 & 4 go away
Well, I understand the technical reason.
Is this IEC 61188-7 compliant? Does it correspond to a physical reality?

If I understand correctly, this topic enters the "badly standardized zone", both for pin 1 and pin numbering.
For example: CD-DF406S (4 pins, side concave diode) doesn't follow the standard counter-clockwise numbering. Even Würth Elektronik isn't consistent with itself: take WL-SBCW and WL-SFCW for example, the numbering is done the opposite way! (CW vs. CCW respectively)
Nevertheless, Footprint Expert applies neither CW nor CCW numbering!

I suppose extra care must be taken for this particular family of packaging.
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