All Questions
9
questions
3
votes
1
answer
543
views
SOIC-8 package in KiCAD
I want to incorporate a chip in my design.
This is the datasheet:
https://datasheet.lcsc.com/lcsc/1809251831_Diodes-Incorporated-AZ34063UMTR-G1_C99659.pdf
It is an 8 pin SOIC package.
When I try to ...
- 1,369
0
votes
1
answer
70
views
How to identify pin 1 from mechanical design
Looking at 10142048 datasheet from TE I'm not sure how to identify pin 1 from top side.
At page 9 there are the pin assignments from bottom side only.
Now, I guess:
...
- 1,235
1
vote
1
answer
58
views
Is APDS-9253 pinout really inverted?
I'm drawing the footprint for APDS-9253 and in the datasheet I'm looking at package drawings.
As far as I understand, the top-left drawing is a view from component side, the top-right one from solder ...
- 1,235
2
votes
1
answer
727
views
Unknown "2X" and "3X" markings on package outline
I was checking the dimensions of a TO-263 transistor on its datasheet (page 8), when I saw something I could not understand. What do markings "2X" (over dimensions e and b) and "3X" (over dimension b2)...
- 175
-2
votes
1
answer
67
views
Resources for finding thermal impedances for common IC packages
I'm just looking for some extra resources for thermal impedances of JEDEC standardized packages. I've already found one such article posted by JRC, https://www.njr.com/semicon/package/thermal.html , ...
1
vote
1
answer
228
views
replacing obsolete HEMT and differences between Package/Case and Supplier Device Package
I've been designing an amplifier, with ATF33143 as my HEMT in mind. Yet, I just found out the said HEMT went obsolete. So I started looking at SKY65050-372LF as a possible replacement.
On the DigiKey ...
- 533
2
votes
1
answer
163
views
Dimensions in package outline
I don't really know what is with those stacked dimensions 5.00/4.90/4.80
on the ADP1708 package drawing.
- 85
5
votes
2
answers
517
views
Confusion around a components pins
I'm looking to use a RBO40 reverse battery & over voltage protection. I was unable to find the RBO40-40T (with 3 pins) anywhere so had to get RBO40-40G, which is slightly different, it has the ...
- 197
2
votes
1
answer
990
views
Question about a dimension in this IC package drawing
this is the first time I'm making a PCB layout, so I'm not too familiar with datasheets. The picture below shows a diagram for an IC I'm using. The datasheet says all dimensions are in mm. However, ...
- 235