Document 106-1 Chip Inductors – 1812LS Series (4532) • Highest inductance values of all our chip inductors • Ferrite construction for high current handling • Inductance values: 12 – 1000 µH Part number1 1812LS-123XJL_ 1812LS-153XJL_ 1812LS-183XJL_ 1812LS-223XJL_ 1812LS-273XJL_ 1812LS-333XJL_ 1812LS-393XJL_ 1812LS-473XJL_ 1812LS-563XJL_ 1812LS-683XJL_ 1812LS-823XJL_ 1812LS-104XJL_ 1812LS-124XJL_ 1812LS-154XJL_ 1812LS-184XJL_ 1812LS-224XJL_ 1812LS-274XJL_ 1812LS-334XJL_ 1812LS-394XJL_ 1812LS-474XJL_ 1812LS-564XJL_ 1812LS-684XJL_ 1812LS-824XJL_ 1812LS-105XJL_ Inductance2 (µH) 12 15 18 22 27 33 39 47 56 68 82 100 120 150 180 220 270 330 390 470 560 680 820 1000 Percent tolerance 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 1. When ordering, please specify termination and packaging codes: 1812LS-105XJLC Termination: L = RoHS compliant silver-palladium-platinum-glass frit. Special order: T = RoHS tin-silver-copper (95.5/4/0.5) or S = non-RoHS tin-lead (63/37). Packaging: C = 7″ machine-ready reel. EIA-481 embossed plastic tape (600 per full reel). B = Less than full reel. In tape, but not machine-ready. To have a leader and trailer added ($25 charge), use code letter C instead. D = 13″ machine-ready reel. EIA-481 embossed plastic tape. Factory order only, not stocked (2200 per full reel). Request free evaluation samples by contacting Coilcraft or visiting www.coilcraft.com. Q min3 42 42 45 45 45 45 45 42 42 40 40 40 33 36 36 38 38 38 38 38 33 33 30 30 Test freq (MHz) 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 0.79 0.79 0.79 0.79 0.79 0.79 0.79 0.79 0.79 0.79 0.79 0.79 SRF typ4 (MHz) 85 70 52 58 46 40 30 24 20 16 13.5 12.0 14.5 11.5 9.3 7.6 8.3 7.0 5.2 4.4 2.8 2.3 2.1 1.9 Irms6 (mA) 310 290 270 260 240 230 210 200 190 180 170 150 135 125 120 115 105 100 90 85 75 60 55 50 2. Inductance at 2.5 MHz measured using an Agilent/HP 4286A and a Coilcraft SMD-A fixture with Coilcraft-provided correlation pieces. Inductance at 0.79 MHz measured using an Agilent/HP 4192A and Coilcraft SMD-B test fixture. 3. Q read at test frequency directly on an Agilent/HP 4192A LF impedance analyzer and a Coilcraft SMD-B test fixture. 4. SRF measured using an Agilent/HP 8753D network analyzer and a Coilcraft SMD-D test fixture. 5. DCR measured on a Cambridge Technology micro-ohmmeter. 6. Current that causes a 15°C temperature rise from 25°C ambient. Because of their open construction, these parts will not saturate. 7. Electrical specifications at 25°C. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. See Color Coding section for part marking data. Specifications subject to change without notice. Please check our website for latest information. © Coilcraft, Inc. 2009 DCR max5 (Ohms) 2.0 2.5 2.8 3.2 3.6 4.0 4.5 5.0 5.5 6.0 7.0 8.0 11.5 13.0 14.2 16.2 20.5 22.5 24.5 26.5 28.5 38.0 41.0 44.0 Document 106-1 Revised 10/06/08 Document 106-2 1812LS (4532) Chip Inductors Typical Q vs Frequency Typical L vs Current 10000 60 50 12 µH Q Factor 40 Inductance (µH) 18 µH 33 µH 270 µH 82 µH 560 µH 1000 µH 30 20 1000 µH 1000 330 µH 100 µH 100 33 µH 2.5 MHz 10 0.79 MHz 12 µH 10 0 0.1 0.2 0.3 0.4 0.6 1 2 3 4 5 6 1 8 10 10 Frequency (MHz) Irms Derating 110 90 80 70 60 50 40 25°C Percent of rated Irms 100 20 10 0 -40 -20 0 20 1000 Designer’s Kit C314 contains 10 of each value Core material Ferrite Terminations RoHS compliant silver-palladium-platinum-glass frit. Other terminations available at additional cost. Weight 142 – 171 mg Ambient temperature –40°C to +85°C with Irms current, +85°C to +100°C with derated current Storage temperature Component: –40°C to +100°C. Packaging: –40°C to +80°C Resistance to soldering heat Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles Temperature Coefficient of Inductance (TCL) +200 to +700 ppm/°C Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C / 85% relative humidity) Failures in Time (FIT) / Mean Time Between Failures (MTBF) One per billion hours / one billion hours, calculated per Telcordia SR-332 Packaging 600/7″ reel; 2200/13″ reel. Plastic tape: 12 mm wide, 0.3 mm thick, 8 mm pocket spacing, 3.7 mm pocket depth PCB washing Only pure water or alcohol recommended 120 30 100 DC Current (mA) 40 60 80 100 120 Ambient temperature (°C) B overall A E terminal A max B max C max H C F I G J F I D Recommended Land Pattern Terminal wraparound: approx 0.015/0,38 both ends D ref E F G H I J 0.195 0.150 0.135 0.070 0.100 0.025 0.128 0.120 0.045 0.118 inches 4,95 3,81 3,43 1,78 2,54 Specifications subject to change without notice. Please check our website for latest information. © Coilcraft, Inc. 2009 0,64 3,25 3,05 Document 106-2 1,14 3,00 mm Revised 10/06/08