Just so you know, Colicraft makes them too. http://www.coilcraft.com/bcl-s.cfm#table
Probably quite a bit cheaper than Piconics and they are available either with flying leads or surface mount. I don't believe they use any core material but the specifications look like they would be suitable for a large number of applications. I don't know about these particular parts but Coilcraft is very liberal in giving out samples. I routinely get 20 at a time of several values at a time. Our purchasing folks don't like to order from Coilcraft but I always list them as an approved source because their parts always work, unlike some other vendors. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.