This lumped-element (SPICE) model data simulates frequency-dependent b
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SPICEModel 0603LS
This lumped-element (SPICE) model data simulates frequency-dependent behavior Coilcraft ferrite surface mount inductors within frequency range shown accompanying table. equivalent lumped element model schematic shown below. element values listed table each component value. value frequency-dependent variable resistor RVAR1 relates skin effect calculated from: RVAR1 shown each value accompanying table. frequency Typically, Self-Resonant Frequency (SRF) component model will higher than measurement component mounted circuit board. parasitic reactive elements circuit board fixture will effectively lower circuit resonant frequency, especially very small inductance values. Since data sheet specifications based typical production measurements, SPICE models based de-embedded measurements described below, model results different from data sheet specifications.
Lumped Element Modeling Method
Measurements were made using Agilent/ 4291A impedance analyzer with Agilent/HP 16193 test fixture. Calibration performed using open/short/ load/air capacitor (phase) standards. Fixture compensation performed using open short standards. lumped element values were determined matching simulation model average measurements. This method results model that represents closely possible typical frequency-dependent behavior component within model frequency range. lumped element models were used generate 2-port S-parameters therefore give identical results. S-parameters available site
value frequency-dependent variable resistor RVAR2 relates core losses calculated from: RVAR2 shown each value accompanying table. frequency
Disclaimer
Coilcraft makes every attempt provide accurate measurement data software, representative components, usable format. Coilcraft, however, disclaims warrants relating data software, whether expressed implied, including without limitation implied warranties merchantability fitness particular purpose. Coilcraft cannot will liable special, incidental, consequential, indirect similar damages occurring with data and/ software.
data represents de-embedded measurements, described below. Effects different customer circuit board traces, board materials, ground planes interactions with other components included have significant effect when comparing simulation measurements inductors using typical production verification instruments fixtures.
Specifications subject change without notice.
Document 298-1 Revised 11/13/02
SPICE Model Coilcraft 0603LS Inductors
Part number 0603LS-47N 0603LS-72N 0603LS-101 0603LS-121 0603LS-151 0603LS-181 0603LS-241 0603LS-271 0603LS-331 0603LS-391 0603LS-471 0603LS-561 0603LS-681 0603LS-781 0603LS-821 0603LS-102 0603LS-122 0603LS-152 0603LS-182 0603LS-222 0603LS-272 0603LS-332 0603LS-392 0603LS-472 0603LS-562 0603LS-782 0603LS-822 Frequency limit model (MHz) Lower Upper 1264 1706 2756 3546 4025 3518 3330 2920 1886 1676 3800 2740 1180 27.8 33.5 36.1 80.4 91.5 76.1 63.5 90.4 0.001 0.001 0.001 0.001 0.002 0.005 0.002 0.002 0.002 0.095 0.432 0.319 0.365 0.532 0.669 0.666 0.666 0.956 1.51 1.10 1.37 1.49 1.89 3.14 5.63 3.58 3.48 (pF) 10.6 11.5 7.50 7.30 2.00 0.90 0.17 0.11 0.12 0.14 0.13 0.13 0.28 0.10 0.15 0.33 0.35 1.26 1.56 1.73 1.59 2.68 2.69 3.49 3.14 3.05 3.22 (nH) 46.3 70.0 95.0 1180 1500 1760 2140 2620 3290 3810 4660 5390 7370 7801 2.87E-05 5.07E-05 7.34E-05 7.34E-05 9.20E-05 9.54E-05 1.21E-04 1.15E-04 1.30E-04 1.44E-04 3.80E-05 3.94E-05 7.97E-05 3.83E-05 5.70E-05 1.45E-04 8.08E-05 3.39E-05 8.42E-05 7.23E-05 5.76E-05 2.17E-05 2.33E-05 1.71E-05 1.31E-05 2.04E-05 2.04E-05 5.77E-02 1.65E-01 1.50E-01 1.52E-01 1.45E-01 1.60E-01 2.14E-01 2.17E-01 2.42E-01 3.72E-01 3.47E-01 3.94E-01 5.11E-01 5.35E-01 6.33E-01 7.88E-01 7.78E-01 9.40E-01 1.06E+00 1.31E+00 1.71E+00 1.98E+00 2.10E+00 2.59E+00 2.76E+00 4.46E+00 4.99E+00
Specifications subject change without notice.
Document 298-2 Revised 11/13/02
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