Bourns enhances automotive power inductors

Bourns, Inc. has added five new automotive-grade, AEC-Q200 compliant model series to its line of semi-shielded power inductors. These include the following models: the SRN2010BTA, SRN2510BTA, SRN3010BTA, SRN3012BTA and SRN3015BTA Series with enhanced reliability thanks to their bottom-soldered lead wire construction that provides increased mechanical strength and stability.

SRNxxxxBTA power inductors (Source: Bourns)

The power inductor series are available in a wide range of inductance ratings (see datasheets) with a 20% tolerance. They also offer multiple footprints with a 1-mm max profile. The operating temperature range is -55°C to 125°C. The inductors are manufactured with a ferrite core and enameled copper wire. The terminal finish is Ag/Ni/Sn, and the coating is magnetic resin. The devices offer a moisture sensitivity level (MSL) of 1.

They combine the feature benefits of both non-shielded and shielded inductors, said Bourns, which provides lower magnetic field radiation compared to non-shielded inductors and a more cost-effective alternative to fully shielded ferrite-based inductors.

Applications include differential choke power conversion solutions for automotive systems, as well as DC/DC converters and power supplies in consumer, industrial and telecom electronics that require high reliability. The new semi-shielded power inductor series are available now and are RoHS compliant and halogen-free.

Also recently introduced for automotive applications is the Bourns Model AD and SD Series of miniature thermal cutoff (TCO) mini-breakers  with automotive-grade approval. They are compliant to AEC-Q200 equivalent standards and offer resettable and repeatable protection for a range of automotive heater circuit-based applications.