Anyone who has ever wound a toroidal coil by hand can tell you that it’s not exactly a fun job. Even with the kinds of coils used in chokes and transformers for ham radio, which generally have ...

Said to deliver excellent shielding properties, the new CMT4545 Series of dual-winding surface-mount toroids have inductance values ranging from 0.49 to 300 µH. Resistance values are as low as 0.004 ...