Hello Vinay,
Unfortunately, Freescale does not have official 3D model designs for its pressure sensors
Freescale provides the needed information in the datasheet so everyone can generate their own CAD models.
In case it is useful for you, there are some Step design files from some of the pressure sensors.
For example, you can find the 3D STEP model: Unibody package with side case 467B-04 (package of the MPX4250AP) in the following link:
https://community.freescale.com/docs/DOC-95393
I hope this information will be useful for you.
If I misunderstood your question, feel free to let me know. I will be glad to help.
Have a great day.
David Diaz.
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