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I'm following the reference design PMP, but I need to mount my board using JLCPCB SMT assembly service, and there I couldn't find the CDMC8D28NP-1R2MC inductor. I have hard restrictions about EMI in my project and I would like to choose the best inductor to achieve EMC compliance in my country.
This is the inductor used in the reference design:
CDMC8D28NP-1R2MC
Metal compound molding type construction.
Magnetically shielded
Inductance (uH): 1.2±20%
D.C.R. (mΩ): 7
Saturation current (A): 15.3
Temperature rise current (A): 12.9
The only option available for SMT assembly in JLCPCB wich is compatible with this project about current ratings and inductance is the following:
MWSAS-110MT
Molded SMD Power Inductor
Metal material for large current and low loss
Closed magnetic circuit design reduces leakage flux
Inductance (uH): 10
D.C.R. (mΩ): 22
Saturation current (A): 11.8
Temperature rise current (A): 9.3
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The manufacturer of MWSAS-110MT doesn't says about shileding, only about closed magnetic circuit design to reduce leakage flux, so I would like to know: magnetic shielding is the same thing as closed magnetic circuit for molded inductors? In this case, both MWSAS-110MT and CDMC8D28NP-1R2MC will have similar radiated EMI performance?
Thanks,
Geraldo Gomes.