DAC7551: DAC7551ZTDRNRQ1

Jessie Lester

Prodigy 10 points

Part Number: DAC7551

Are the sides of the terminals solderable on this component? If so, where can I find this information.

If not, does TI have an option for this component with "wettable flanks"?

Thanks,

Jessie

over 2 years ago

0 Paul_Frost over 2 years ago

TI__Guru 52683 points

Hi Jessie,

The sides of the device are exposed and solderable:

We do not have any automotive DACs that feature wettable flanks.

0 Jessie Lester over 2 years ago in reply to Paul_Frost

Prodigy 10 points

Under normal conditions and processes (stencil printing and reflow in air) these terminals do not seem to be forming a nice fillet on the side. I understand and see that these are exposed, but they appear to be copper.

If they are solderable, than what is different between these flanks and "wettable flanks".

0 Paul_Frost over 2 years ago in reply to Jessie Lester

TI__Guru 52683 points

Hi Jessie,

I think I understand now. So while these sides are exposed metal, they are not wettable flanks. This means that while you can get a fillet on the side of the device, it not always going to happen. It will vary based on the stencil size and device variance.

Wettable flanks feature a notch or grove cut from the edge of the pad that will enable visual inspection of the fillet. Note, the DAC7551 does not have these flanks.

https://forum.digikey.com/t/what-is-surface-mount-wettable-flank/3055

Thanks,

Paul

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DAC7551: DAC7551ZTDRNRQ1