开云体育

Hello All,

I have done many custom hobby level PCB and circuits (four layer and two layer boards), bought thousands of components from Mouser, Newark, etc, purchased hundreds of feet of hook up wire and never once did any of them have that "strong new electronics smell" that I detect when removing a new PC motherboard from its static proof plastic bag or when opening up a new-in-box PC power supply.

I have never noticed it when purchasing brand new higher end electronic test equipment (Tektronix, HP/Agilent/Keysight, Fluke).

I have done many web searches on what the cause might be I have come across some suggestions as to what may contribute to the chemical off gassing.

- bromide based fire protection coating
- board cleaning / flux cleaning wash
- fire retardant infused hookup wire insulation (this seems a bit far fetched to me)

Anyone here involved or had experience with consumer (read as low cost / high quantity) commercial PCB and electronic manufacturing that could give some clues as to what it may be and if it is infused into the PCB / wire / components or if it can be cleaned / removed?

Thanks,
Dave

When I worked in welder repair yers back, the Chinese made welders had a particular smell, I traced it down to the conformal coatings on PCB's and varnishes in the transformers etc outgassing.


Jared

I get a lot of bare boards from ALL PCB and JLCPCB and have never noticed them have a smell.