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STMicroelectronics have introduced the STM32H7R/S line of MCUs which are based on the high-performance Arm® Cortex®-M7 32-bit RISC core operating at up to 600 MHz, the devices offer applications MPU like performance using a real-time cost effective MCU.

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Bourns releases new semi-shielded power inductor models SRN3010, SRN4018, SRN5020 and SRN1060

Bourns Inductive Components Product Line has introduced four additional models designed using semi-magnetic shielding technology. Bourns now has a total of seven SRN models with selections of 3x3 mm to 10x10 mm footprints, 1 mm to 6 mm heights and 0.5 µH to 470 µH inductance. Instead of a conventional ferrite shield, the magnetic shield of the SRN series utilises an epoxy-ferrite powder mixture resin. This compound is applied to the perimeter of the inductor which completely envelops the winding. As a result, the SRN model series inductors provide effective magnetic shielding while emitting lower radiation compared to non-shielded inductors. In addition, the models offer a reduced footprint and cost savings to comparably-sized conventional ferrite shield inductors.

The semi-shielded SRN model series inductors combine the features of non-shielded and shielded inductors, making them ideal for use in DC/DC converters which provide power management to mobile electronic devices, computers, data storages and consumer electronics. The SRN series is also well-suited for industrial applications such as LED lighting, control circuits and GPS.

Model	Footprint	Height	Inductance Range	Heating Current Range	Saturation Current Range
SRN3010	3 x 3 mm	1 mm	1 – 47 µH	0.35 - 2.3 A	0.28 - 2.3 A
SRN4018	4 x 4 mm	1.8 mm	0.82 – 220 µH	0.28 - 4 A	0.3 - 4.2 A
SRN5020	5 x 5 mm	2 mm	1 – 33 µH	0.9 - 3.6 A	0.8 - 4 A
SRN1060	10 x 10 mm	6 mm	10 – 470 µH	0.8 - 5.4 A	0.8 - 5.2 A