Mr. Steve Robinson;
This email is in response to your request about ROHS and PN WM35A-120.
The WM35 is a mercury displacement relay. It contains mercury and will not be ROHS compliant. The properties of mercury in the part give it characteristics far superior to any non-mercury part. Struthers-Dunn is presently working on alternatives for the future that are ROHS compliant but nothing to date has similar performance..
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