AWR1843AOP: max Tolerance of package

Jens G

Part Number: AWR1843AOP

Hi Team,

I need to follow up the thread :

https://e2e.ti.com/support/sensors-group/sensors/f/sensors-forum/1133636/awr1843aop-tolerance-of-height

I see some deviations after the solder process between 0.75mm up to 0.96mm. What would be the root cause of that? I just check the datasheet and there is just provided the max package size of 0.965 without any lower or typical bounds. Can you confirm that the AOP package has no deviations and the min/max size is only variation after the soldering for the overall component is only dependent of the different ball sizes deviations?

Thanks

Jens

over 2 years ago

+1 Vivek Dham over 2 years ago

TI__Guru 58035 points

Hello Jens,

As discussed in the e2e thread "https://e2e.ti.com/support/sensors-group/sensors/f/sensors-forum/1133636/awr1843aop-tolerance-of-height" , the ball height can vary upto 0.25mm (0.27 - 0.53 mm). Hence the total package height would also vary along with the ball height. The variation you are seeing seems to be within this range. Additionally there could be some variation in the solder paste heigh applied during the assembly of the PCB. Your assembly house might be able to provide that info.

regards,
Vivek

0 Jens G over 2 years ago in reply to Vivek Dham

TI__Expert 3185 points

Hi Vivek,

please can you provide also technical possible deviation (+/-) only of our package, beside the balls.

Thanks

Jens

+1 Vivek Dham over 2 years ago in reply to Jens G

TI__Guru 58035 points

Hello Jens,

The package height variation would be negligible.

regards,
vivek

0 Jens G over 2 years ago in reply to Vivek Dham

TI__Expert 3185 points

Thanks!

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AWR1843AOP: max Tolerance of package