LPC4235 & LPC4545 power chip inductor EU • Low DC resistance and high allowable current are realized by the original construction and wiring technology • Automatic surface mounting is applicable • Excellent solderability and endurance environment • Suitable for reflow soldering • Marking: Black body color with no marking • Products meet EU RoHS requirements • AEC-Q200 Qualified dimensions and construction LPC4235 L H A Size Base W Ferrite Core LPC4545 Dimensions inches (mm) H Max. A W B 4235 .177±.008 .165±.008 .138 Max. .039±.008 .079±.008 (4.5±0.2) (4.2±0.2) (3.5 Max.) (1.0±0.2) (2.0±0.2) 4545 .161±.012 .181±.016 .181 Max. .126±.012 (4.1±0.3) (4.6±0.4) (4.6 Max.) (3.2±0.3) B Magnet Wire L L –– Electrode A W Electrode Ferrite Core H ordering information New Part # LPC 4235 Type Size 4235 4545 T Termination Material T: Sn (4235 only) C: Sn/Cu (4545 only) TED Packaging TM: taping (4235) TED: taping (4545) K 221 Nominal Inductance 3 digits 221: 220µH Tolerance K: ±10% M:±20% For further information on packaging, please refer to Appendix A. Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 1/27/14 KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com 215 inductors features LPC4235 & LPC4545 power chip inductor applications and ratings Part Designation inductors LPC4235TTM R82M LPC4235TTM 1R0M LPC4235TTM 1R2M LPC4235TTM 1R5M LPC4235TTM 2R2M LPC4235TTM 3R3M LPC4235TTM 4R7M LPC4235TTM 6R8M LPC4235TTM 100K LPC4235TTM 150K LPC4235TTM 220K LPC4235TTM 330K LPC4235TTM 470K LPC4235TTM 680K LPC4235TTM 101K LPC4235TTM 151K LPC4235TTM 221K LPC4545CTE 1R0M LPC4545CTE 1R5M LPC4545CTE 2R2M LPC4545CTE 3R3M LPC4545CTE 4R7M LPC4545CTE 6R8M LPC4545CTE 100K LPC4545CTE 150K LPC4545CTE 220K LPC4545CTE 330K LPC4545CTE 470K LPC4545CTE 680K LPC4545CTE 101K LPC4545CTE 151K LPC4545CTE 221K LPC4545CTE 331K LPC4545CTE 471K LPC4545CTE 681K LPC4545CTE 152K LPC4545CTE 222K Inductance (µH) 0.82 1.0 1.2 1.5 2.2 3.3 4.7 6.8 10 15 22 33 47 68 100 150 220 1.0 1.5 2.2 3.3 4.7 6.8 10 15 22 33 47 68 100 150 220 330 470 680 1500 2200 Self Resonant Frequency Minimum (MHz) 146.6 125.1 114.7 101.4 78.8 66.7 52.0 43.5 33.5 29.1 21.7 13.9 12.0 12.7 10.4 7.5 6.7 90.0 65.0 50.0 40.0 35.0 25.0 23.0 15.0 13.0 10.0 9.0 7.5 5.5 5.0 4.0 2.5 2.0 1.8 1.3 0.9 Inductance Tolerance M: ±20% K: ±10% M: ±20% K: ±10% DC Resistance Maximum (Ω) 0.017 0.020 0.023 0.031 0.039 0.070 0.090 0.109 0.190 0.230 0.366 0.542 0.688 1.30 1.66 2.96 3.77 0.015 0.02 0.023 0.044 0.062 0.075 0.1 0.15 0.21 0.41 0.52 0.67 0.92 1.8 2.25 4.27 5.23 6.67 17.04 35.0 Allowable DC Current Maximum (Amps) 3.34 3.27 3.10 2.53 2.28 1.63 1.44 1.29 0.91 0.87 0.69 0.52 0.47 0.34 0.31 0.22 0.20 3.66 3.21 2.96 2.19 1.81 1.60 1.43 1.04 0.88 0.60 0.53 0.49 0.41 0.29 0.26 0.19 0.17 0.15 0.10 0.07 Allowable current is a DC Current which causes initial inductance to decrease by 10%. Or coil temperature to rise by 40°C, whichever is smaller Operating Temperature Range: -40°C ~ +125°C (Self-heating is included). That the operating temperature upper limit temperature of the coil winding portions (ambient temperature + self-heating) is (+125°C) or less. environmental applications Performance Characteristics Performance Requirements ∆L/L Parameter Limit Typical High Temperature Exposure ±5% ±1.3% +125°C ± 2°C, 1000 hours Low Temperature Exposure ±5% ±1.3% -40°C, 1000 hours Moisture Exposure ±5% ±1.6% +40°C ± 2°C, 90 - 95% RH, 1000 hours Rapid Change of Temperature ±5% ±1.3% -40°C (30 minutes)/+125°C (30 minutes), 100 cycles Test Method Surface Temperature Rise graphs and additional environmental applications can be found at www.koaspeer.com Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 216 1/03/14 KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com