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
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
Other existing SRN models are SRN3015, SRN6045 and SRN8040.
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