Wurth Connector 62731220621 SMD Reflow Maximum Temperature

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1

------Question for 62731220621 Please Put your question below------

I am using Würth part number 62731220621 in an SMT reflow process and would like to confirm the thermal limits of the connector during reflow.

Could you please clarify:

  1. What is the maximum peak temperature (Tp) that the component body can withstand during reflow?

The datasheet refers to J-STD-020, which would limit this part to 245C (h > 2.5mm, V > 350mm3). However my PCB assembler says they recommend parts rated for 250C or higher.

2

Hello,
Welcome to the DigiKey TechForum. I read this based off the dimensions l x w x h of the part being 350 cubic mm. The thickness should be the thickness of the plastic shroud which would be 5mm minus 3.4mm which gives a total thickness for both sides as 1.6mm. That’s the combined thickness of both sides so the thickness of one side is 0.8mm which puts Tc at 260C.

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3

Thanks for the clarification! I was reading "package thickness " as package height (z-dimension), but I haven’t read the actual J-STD-020E and 260C seems more reasonable for this connector.