Click here to enlarge image

Cookson Electronics in South Plainfield, N.J., is introducing the Alpha WS-820 lead free solder paste that is water soluble and free of halide to help manufacturers meet RoHS guidelines. This lead free solder product, designed to help companies manufacturer RoHS compliant electronics, offers printability with print volume and print repeatability down to 12 mil (0.3mm), has a solid reflow process window with straight ramp, and short soak or long soak profiles in air. RoHS is a European directive that stands for Restriction of Hazardous Substances, and calls for the restriction of the use of hazardous substances in electrical and electronic equipment–most notably lead. Available in SAC305 and SAC405 alloys and in Type 3 and 4 powder, Alpha WS-820 wets on common surface finishes such as Entek HT OSP. As many electrics assemblers explore the conversion to lead free solder surface mount applications, WS-820 will help make the switch without sacrificing printability and first pass yields, company officials say. For more information contact Cookson Electronics online at www.alpha.cooksonelectronics.com.