40E-06 90E-06 22E-05 36E-05 07E-05 34E-05 72E-05 44E-05 04E-05 69E-05 17E-05

SPICE Model xx336RAA This lumped-element (SPICE) model data simulates the frequency-dependent behavior of Coilcraft RF

SPICE MODELS SPICE Model xx336RAA This lumped-element (SPICE) model data simulates the frequency-dependent behavior of Coilcraft RF surface mount inductors from 1 MHz to the upper frequency limit shown in the accompanying table. The equivalent lumped element model schematic is shown below. The element values R1, R2, C, and L are listed for each component value. The value of the frequency-dependent variable resistor RVAR relates to the skin effect and is calculated from: RVAR = k * · · k is shown for each value in the accompanying table. f is the frequency in Hz The data represents de-embedded measurements, as described below. Effects due to different customer circuit board traces, board materials, ground planes or interactions with other components are not included and can have a significant effect when comparing the simulation to measurements of the inductors using typical production verification instruments and fixtures. Each model should only be analyzed at the input and output ports. Individual elements of the model are not determined by parameter measurement. The elements are determined by the overall performance of the lumped element model compared to the measurements taken of the component. Typically, the Self-Resonant Frequency (SRF) of the component model will be higher than the measurement of the component mounted on a circuit board. The parasitic reactive elements of a circuit board or fixture will effectively lower the circuit resonant frequency, especially for very small inductance values. Since data sheet specifications are based on typical production measurements, and the SPICE models are based on de-embedded measurements as described below, the model results may be different from the data sheet specifications. Lumped Element Modeling Method The measurements were made over a brass ground plane with each component centered over an air gap, as illustrated in Figure 1. The gap width for each size component is given in Table 1. The test pads were 30 mil ® Size 0302 0402,0403 0603 0805 1008 1206 1812 Gap Width (inch / mm) 0.017 / 0.432 0.017 / 0.432 0.026 / 0.660 0.040 / 1.016 0.060 / 1.524 0.080 / 2.032 0.120 / 3.048 (50 Ohm) wide traces of tinned gold over 25 mil thick alumina, and were not included in the gap. The TRL* calibration plane is also illustrated in Figure 1. Pad Air gap Pad Brass ground plane Calibration plane Figure 1. Test Setup The lumped element values were determined by matching the simulation model to an average of the measurements. This method results in a model that represents as closely as possible the typical frequency-dependent behavior of the component up to a frequency just above the self-resonant frequency of the model. The lumped element models were used to generate our 2-port S-parameters and therefore give identical results. The S-parameters are available on our web site at http://www.coilcraft.com/models.cfm. Disclaimer Coilcraft makes every attempt to provide accurate measurement data and software, representative of our components, in a usable format. Coilcraft, however, disclaims all warrants relating to the use of its data and software, whether expressed or implied, including without limitation any implied warranties of merchantability or fitness for a particular purpose. Coilcraft cannot and will not be liable for any special, incidental, consequential, indirect or similar damages occurring with the use of the data and/ or software. Specifications subject to change without notice. Document 158-1 Revised 03/16/09 Phone 800-981-0363 Fax 847-639-1508 E-mail cp@coilcraft.com Web www.coilcraft-cps.com 1102 Silver Lake Road Cary IL 60013 © Coilcraft, Inc. 2010 Table 1. Test Gap SPICE MODELS Document 158 SPICE Model for Coilcraft xx336RAA Chip Inductors Part number R1 ( ) R2 ( ) C (pF) L (nH) k Upper limit (MHz) xx336RAA020 xx336RAA3N0 xx336RAA030 xx336RAA050 xx336RAA060 xx336RAA070 xx336RAA080 xx336RAA100 xx336RAA120 xx336RAA150 xx336RAA180 xx336RAA220 xx336RAA240 xx336RAA270 xx336RAA330 xx336RAA360 xx336RAA390 xx336RAA430 xx336RAA470 1 2 3 4 5 5 7 6 12 10 10 12 12 14 12 13 13 15 10 0.06 0.06 0.08 0.08 0.11 0.14 0.12 0.10 0.15 0.17 0.20 0.22 0.22 0.25 0.27 0.27 0.29 0.31 0.31 0.038 0.040 0.042 0.051 0.041 0.065 0.076 0.047 0.051 0.096 0.059 0.093 0.110 0.067 0.097 0.126 0.082 0.084 0.111 2.75 3.00 3.30 5.66 6.72 7.65 8.05 10.1 12.0 15.0 18.0 22.0 24.0 27.0 33.0 36.0 39.0 43.0 47.0 6.40E-06 40E-06 8.90E-06 90E-06 1.22E-05 22E-05 1.36E-05 36E-05 2.07E-05 07E-05 2.22E-05 22E-05 2.34E-05 34E-05 1.72E-05 72E-05 2.44E-05 44E-05 3.04E-05 04E-05 3.69E-05 69E-05 4.17E-05 17E-05 5.01E-05 01E-05 5.15E-05 15E-05 5.71E-05 71E-05 6.71E-05 71E-05 6.81E-05 81E-05 7.51E-05 51E-05 8.31E-05 31E-05 17200 16000 14900 10400 10600 7900 7100 8100 7100 4700 5400 3900 3500 4200 3100 2700 3400 3200 2700 ® R2 ( ) C (pF) L (nH) xx336RAA560 13 xx336RAA680 12 xx336RAA820 15 xx336RAA910 12 xx336RAA101 14 xx336RAA111 15 xx336RAA121 18 xx336RAA151 24 xx336RAA181 18 xx336RAA221 26 xx336RAA241 27 xx336RAA271 31 xx336RAA331 31 xx336RAA391 33 xx336RAA471 66 xx336RAA561 66 xx336RAA681 88 xx336RAA821 125 0.34 0.38 0.42 0.48 0.46 0.48 0.51 0.56 0.64 0.70 1.00 1.00 1.40 1.50 1.76 1.90 2.20 2.35 0.094 0.088 0.088 0.083 0.089 0.109 0.095 0.110 0.090 0.086 0.098 0.098 0.096 0.095 0.132 0.258 0.542 0.255 56.0 67.5 81.4 90.4 99.1 109 119 149 178 215 235 263 320 380 470 560 680 820 Part number k Upper limit (MHz) 1.01E-04 01E-04 1.20E-04 20E-04 1.34E-04 34E-04 1.40E-04 40E-04 1.56E-04 56E-04 1.52E-04 52E-04 1.72E-04 72E-04 2.23E-04 23E-04 2.75E-04 75E-04 3.40E-04 40E-04 3.80E-04 80E-04 3.90E-04 90E-04 4.74E-04 74E-04 5.78E-04 78E-04 6.14E-04 14E-04 5.54E-04 54E-04 7.14E-04 14E-04 9.80E-04 80E-04 2700 2500 2300 2300 2100 1800 1800 1500 1600 1500 1300 1200 1100 1100 800 600 400 500 Specifications subject to change without notice. Document 158-6 Revised 11/13/02 Phone 800-981-0363 Fax 847-639-1508 E-mail cp@coilcraft.com Web www.coilcraft-cps.com 1102 Silver Lake Road Cary IL 60013 © Coilcraft, Inc. 2010 R1 ( )