If a model does not have a + suffix, does that always mean that it is not RoHS compliant?
This is not always true. Many of Mini-Circuits’ models were RoHS compliant before the EU requirement was established. These models were named before the policy to use the + suffix as an identifier was instituted. We are working hard to unify the part numbering system and many of these parts have already been renamed using the + suffix. Because we have so many model families, not all have been changed yet. We appreciate your patience.