usa 858 674 8100 ? ? germany 49 7032 7806 0 ? ? singapore 65 6287 8998 ? ? shanghai 86 21 54643211 / 2 ? ? china 86 755 33966678 ? ? taiwan 886 3 4641811 www.pulseeng.com 71 spm2007 (11/07) inductance dcr (m ) inductance 100 gauss 1 amp dc part 9,10 @ irated irated et @ 0a dc et 100 h 1 number (h) (a ) typ max (v-sec) (h 20%) (v-sec) (orsted) p0144nl 9.4 3.80 27 31 15.2 10.4 2.65 11.95 p0145nl 13.3 3.13 40 46 18.8 14.6 3.13 14.12 p0146nl 23 2.43 65 75 24.3 25 4.10 18.46 p0147nl 50 1.65 121 139 37.0 56 6.15 27.69 p0148nl 75 1.35 181 208 44.3 83 7.47 33.67 p0149nl 90 1.23 246 283 49.2 100 8.19 36.93 p0150nl 137 0.99 387 445 59.4 152 10.12 45.61 P0151NL 200 0.81 585 673 71.3 220 12.17 54.85 p0152nl 305 0.65 845 972 85.8 331 14.94 67.34 p0153nl 439 0.53 1322 1520 99.6 472 17.83 80.37 smt power inductors toroid - bobcat series electrical specifications @ 25c ? operating temperature -40c to +130c 11 1. the reference inductance at rated dc current is a typical value. 2. temperature rise is 50c in typical buck or boost circuits at 250khz and with the reference et applied to the inductor. 3. total loss in the inductor is 380mw for 50c temperature rise above ambient. 4. to estimate temperature rise in a given application, determine copper and core losses, divide by 380 and multiply by 50. 5. for the copper loss (mw), calculate i dc 2 x r n . 6. for core loss (mw), using frequency (f in hertz) and operating flux density (b in gauss), calculate 6.11 x 10 -18 x b 2.7 x f 2.04 . 7. for flux density (b in gauss), calculate et (v-sec) for the application, divide by et 100 from the table, and multiply by 100. mechanical schematic 8. limit the dc bias (h) to 46 orsteds. calculate h by multiplying h 1 from the table by i dc of the application. 9. optional tape & reel packaging can be ordered by adding a " t " suffix to the part number (i.e. p0144nl becomes p0144nl t ). pulse complies to industry standard tape and reel specification eia481. 10. the " nl " suffix indicates an rohs-compliant part number. non-nl suffixed parts are not necessarily rohs compliant, but are electrically and mechanically equivalent to nl versions. if a part number does not have the " nl " suffix, but an rohs compliant version is required, please contact pulse for availability. 11. the temperature of the component (ambient plus temperature rise) must be within the stated operating temperature range. height: 5.5mm max footprint: 12.7mm x 12.7mm max current rating: up to 3.8a inductance range: 9.4h to 439h notes: weight . . . . . . . . 1.5 grams tape & reel . . . . . . 500/reel tube . . . . . . . . . . . . 40/tube dimensions: inches mm unless otherwise specified, all tolerances are .010 0,25 .500 max 12,70 r suggested pad layout 2x .060 1,52 .400 10,16 4 surfaces .005/0,13 .215 max 5,46 .500 max 12,70 .390 9,91 .470 11,94
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