Specialist in Printed Circuit Boards

Top quality printed circuits delivered on time

 

 

Restriction of Hazardous Substances

Since November 2005 all the PCBs we have produced have been lead free, as part of overall RoHS compliance, as required by legislation since 1st July 2006.

The solder we are using is SN100C. This particular alloy of tin, copper and nickel was chosen due to its proven record of over four years use by some of the largest manufacturers in the world. It is an alloy that is compatible with all other solder systems and so can be used universally. The fact that it does not contain silver means that it is far less aggressive than those that do. (see www.dklmetals.co.uk for more details).

There are other finishes available but they were discounted, in the case of immersion tin and silver, due to potential problems of oxidation of the plated surface rendering them unsolderable over a relatively short timescale if not kept airtight.

Nickel / Gold was also discounted for the majority of applications, on the grounds of cost, but is still available if required. For certain applications where tin / lead solder is necessary it is still possible to specify this alloy as a finish on your printed circuit boards.

 

We hope that this information will be of help but should you have any questions or concerns please contact us.