
Sumida, a prolific developer of power inductors, has recently introduced several new models for design engineers in electronics and automotive applications. High electric performance and high magnetic shielding are hallmarks of the new products, tailored for a variety of applications. One, targeting the automotive industry, features a simple component structure designed to advance from legacy drum-ring ferrite inductors.
The 0615CDMCC/DS, shown at top, is newly developed as a metal compound molding type power inductor. Metal compound molding construction is used to achieve high electric performance and high magnetic shielding, also to provide low audible core noise, low profile and high current performance. They have an operational temperature range of -55C to about +125C including the coil’s temperature rise. Applications are portable electronic devices, servers and DC/DC conversion in distributed power systems.

A new high current inductor CDB68D62 has also been developed. Like other types in the CDB series, they are in magnetic shielded surface mount structure and constructed by low loss ferrite core with low DCR tolerance and high efficiency. Applications include multi-phase and Vcore regulators, and voltage regulator modules for high power density electronics.

The new CYRSxxxxT150/DS series are resin-shielded and AEC-Q200 qualified SMD ferrite inductors. They feature a magnetically shielded simple component structure and are cost-competitive compared to the legacy drum-ring ferrite inductors. Applications include DC/DC converters for vehicle electronic control units and other high-reliability automotive applications.