The semi-shielded SRN series, recently released by Bourns, combines the features of non-shielded and shielded inductors, making it ideal for use in DC-DC converters which provide power management to mobile electronic devices, computers, data storage devices and consumer electronics. It is also well suited for industrial applications such as LED lighting, control circuits and GPS equipment.
Consisting of the SRN2010, SRN2012, SRN2510, SRN2512, SRN4012, SRN4026, SRN5040 and SRN6028, the power inductor family delivers an inductance range of 0,24 to 220 H, and current ratings up to 4,7 A RMS current and up to 8 A saturation current. All the models are RoHS compliant and halogen free.
The parts use semi-magnetic shielding technology instead of the conventional ferrite shield. Preventing uncontrolled magnetic coupling of the windings, the shielding compound is applied to the perimeter of the inductor, which envelops the winding, resulting in enhanced magnetic shielding and lower radiation emissions compared to non-shielded inductors. In addition, the inductors have a reduced footprint and are more cost-effective compared to competitively sized conventional ferrite shield inductors.
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