Comment on Pretty part of the week: Ruishen RSCM11548 3-winding common-mode choke
marcos@lemmy.world 2 weeks ago
datasheet for this part doesn’t have impedance-versus-frequency graphs
I don’t get those companies. Do they expect to sell it as decorative pieces?
WaterWaiver@aussie.zone 2 weeks ago
So many CMCs seem to be marketed based of visual appearance and hope. I guess maybe people already have a design that works, so they go for things that look like clones visually? Otherwise I don’t get how anyone would choose their product when there are alternatives with actual specs.
Another gripe: When the only datasheet available is a combined one with tables and graphs listing the specs of dozens of part variants. But yours isn’t on there. So you find two similar models in the list and mentally interpolate between the graphs whilst worrying whether or not this is a long-term supply item or some spares that a retailer is selling off from a custom order run.