SMT relay panasonic TX2SA-5V assembly problems

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In our company we are facing the problem at our SMT line wit... - May 24, 2024 by DavidK

No direct experience with these parts but to me, the air flo... - May 29, 2024 by kumarb

We use the same component on many different products, never ... - May 29, 2024 by MagyarT

DavidK

#91006

SMT relay panasonic TX2SA-5V reflow problems | 24 May, 2024

In our company we are facing the problem at our SMT line with component: relay panasonic TX2SA-5V.... Very frequently there are missing or lifted components(chips or small SOT) nearby of theses relays after reflow. Did someone faced to simmilar issue?

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kumarb

#91017

SMT relay panasonic TX2SA-5V reflow problems | 29 May, 2024

No direct experience with these parts but to me, the air flow from top side fans are creating a wind tunnel that is causing the smaller parts to fly. Can you adjust the speed of these fans? Review the paste - review the component mount height. We faced an issue with a larger tqfp part that would shift in the oven and we corrected the fault by pushing the part more into the paste. Test to push a bit more into the paste to keep the smaller parts onboard.

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MagyarT

#91019

SMT relay panasonic TX2SA-5V reflow problems | 29 May, 2024

We use the same component on many different products, never faced a similar issue. However, things I would check are: - stencil thickness (ideally 125um) - additional Z move on the parts around the relay (as suggested by kumarb) - check the packages on the pick and place systems if all parts (chips, SOTs, the relay) match their physical Z height - check you temperature profile in oven + fan speeds (as suggested by kumarb)

Possible solutions after all above are OK: - if your facilities permit, use SMT glue on problematic parts - turn your PCB 90/180 degrees on the line to see if anything changes

Hopefully this helps.

Regards, Tom

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