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[Circuit board for sale]Temperature difference between lead-free tin-plated and lead-sprayed tin on PCB

May. 18, 2019

What is the difference between lead-free spray and lead-spray tin on PCB? What is the temperature? Shared by aluminum pcb manufacturer.

1. PCB lead-free tin spray belongs to the environmental protection category does not contain harmful substances "lead ", melting point of about 218 degrees; The temperature of the tin spraying furnace should be controlled at 280-300 degrees. The peak temperature should be controlled at about 260 degrees. Over. Reflux temperature 260-270 degrees.

2. Lead-sprayed tin on PCB board does not belong to environmental protection category and contains harmful material "lead ", with melting point of about 183 degrees; Spray tin tin furnace temperature needs to be controlled in 245-260 degrees; The temperature of passing wave peak should be controlled at about 250 degrees. Over. Reflux temperature 245-255 degrees.

That's all for the sharing today,and we supply bare printed circuit board for sale,if you have any demand for our products,just feel free to contact us.


high frequency PCB, HDI PCB minimum 01005 components

high frequency PCB, HDI PCB minimum 01005 components