How to distinguish between lead-free FPC assembly and lead FPC assembly?-深圳市海博精密电路有限公司

How do we determine if a printed circuit board is lead-free when we receive an FPC? Due to the fact that many customers require FPC assembly that complies with RoHS standards. We will discuss this issue from the following aspects.

For experienced workers, it is easy to distinguish between FPC soldered with lead-free solder or leaded solder. Because the colors of solder joints are different: lead containing solder appears bright white, while lead-free solder appears darker and slightly yellow.

Lead containing solder typically contains 70% tin and 30% lead. Lead free solder typically contains 96% tin, 3% silver, 0.5% copper, and small amounts of other elements.

Lead containing solder is only used for products that allow lead content. But lead-free solder can be used for lead-free FPC assembly and can be used for most electronic products. Lead free solder complies with RoHS and REACH regulations and can be exported to Europe and the United States.

Through the introduction of the above aspects, when you receive an FPC, you can quickly identify whether it is a lead-free FPC.

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Haibo is an expert in the field of FPC/PCB manufacturing and surface mount assembly in China. Since our establishment in 2017, we have been providing high-quality PCBs to over 1000 customers worldwide. Our factory has passed ISO14001, ISO9001:2015, TS16949, and ISO13485:2016 certifications. We are one of the most trusted small and medium-sized FPC/PCB manufacturers in China.

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