TLV3501A-Q1: Can you add dimension to specifications for distance between the bottom of the foot (seating plane) and the top of the lead.

Hi John, 

Thanks for the post. Information regarding the package drawings is usually included in the back of the datasheet. See page 20: TLV3501A-Q1 4.5-ns Rail-to-Rail, High-Speed Comparator in Microsize Packages datasheet (Rev. B) (ti.com).

The distance is between typically 0.08 mm to 0.22 mm. 

I hope that answers your question. 

Chi,

Thanks for the quick reply.  That's not the dimension I was looking for.  I'm looking for the distance between the bottom of the foot (seating plane) and the top of the lead that goes into the package, see below.  

Hello John,

I will have to check with the packaging folks...this may take a few days.

I do have a STEP model available if you could use that to gain the dimensions in the mean time. See attached.dbv0006a.stp

Paul,

Thanks for your help.  I was able to use the .stp file along with Creo viewer to look at the file.  When I used the file it's showing me that the lead dimension Z would be about 1.175 mm, not  0.9 ±0.1 mm.

Any idea where there is a difference between the two?

Paul, Thanks for the information.  So, would it be safe to say that all TI part with DBV package the model would be 1.175 mm max? or would there be a tolerance on the Z dimension?

We have a critical value of ≤ 0.787 mm.  

Would you be able to provide me with instruction on how to get the STEP models for other packages?  I want to be able to looks at some other packages to see where the Z dimension is at.

Paul,

Thanks for your help with finding the step file.

The critical value of ≤ 0.787 mm is what we use to determine if we need any additional mitigation for tin whisker growth. 

If it could be specified as a maximum value that would be a tremendous help for us.