Molded Body D – D1 nominal not to exceed 0.60 mm

Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic

Hi.  I have a question regarding
the Molded Body family.  In version 13
this feature was added:

       Added
     D – D1 nominal not to exceed 0.60 mm error flag

 We’ve come across a few parts that do not meet this requirement.  An example is TDK T491C337K004AT.

 For this TDK part dim D1 is not provided in the datasheet so I used the
D length – (lead thickness x 2) = 5.74 with the same 0.3 tolerance.  This value is confirmed by measurements on the step model
provided by TDK.  I've attached an image below showing the values. 

The wizard will not accept this value as it does not meet the above
condition.   How should we create this part?   Would we need to add an incorrect value that
meets the rule? 

I’d appreciate any feedback on this scenario. 

Regards,

 Chris 

Author	Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic
GrungyRemnant Members Profile Send Private Message Find Members Posts Add to Buddy List Advanced User Joined: 17 Oct 2013 Status: Offline Points: 91	Post Options Post Reply Quote GrungyRemnant Report Post Thanks(0) Quote Reply Topic: Molded Body D – D1 nominal not to exceed 0.60 mm Posted: 01 Dec 2023 at 10:43am
	Hi. I have a question regarding the Molded Body family. In version 13 this feature was added: Added D – D1 nominal not to exceed 0.60 mm error flag We’ve come across a few parts that do not meet this requirement. An example is TDK T491C337K004AT. For this TDK part dim D1 is not provided in the datasheet so I used the D length – (lead thickness x 2) = 5.74 with the same 0.3 tolerance. This value is confirmed by measurements on the step model provided by TDK. I've attached an image below showing the values. The wizard will not accept this value as it does not meet the above condition. How should we create this part? Would we need to add an incorrect value that meets the rule? I’d appreciate any feedback on this scenario. Regards, Chris



Tom H Members Profile Send Private Message Find Members Posts Add to Buddy List Admin Group Joined: 05 Jan 2012 Location: San Diego, CA Status: Offline Points: 5718	Post Options Post Reply Quote Tom H Report Post Thanks(0) Quote Reply Posted: 01 Dec 2023 at 12:20pm
	The Molded Body component family was created for the JEDEC DO-214 package. The 3D STEP model requires a minimum of 0.60 mm between the "D" and "D1" dimension. Otherwise, the 3D STEP model comes out corrupted. Any other Molded Body package would require a new component family in the calculator. We recommended that you use the mfr. recommended pattern and FP Designer for all your non-standard footprints.
	Stay connected - follow us! X - LinkedIn