I recently changed the finish of copper parts from "ELECTRO TIN PLATE PER MIL-T-10727" to "ELECTRO TIN PLATE PER ASTM B545
". These copper parts carry a high electrical current (up to 40ADC) and are solder to a Printed Circuit Board. Since the finish change, the solderability of the parts has deteriorated and there is a significant voltage drop in the solder joints.
Is the ASTM B545
equivalent to MIL-T-10727 regarding solderability? or should I specify a different finish?
(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)
Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.
If you are seeking a product or service related to metal finishing, please check these Directories: