Magnetics Shielded Surface Mount Inductors MODELS HM78D1210XXXMLF Features Operating Temperature Range -40C to +125C Temperature Rise, Maximum 40C Ideal for SEPIC applications, high inductance, high efficiency and excellent current handling in rugged, low cost part Use as DC-DC converter and in applications like hand phones, CD/DVD player, digital camera, GPS system. Also used as two single inductors connected series or parallel or as 1:1 transformer RoHS Compliant Electrical Schematic Coupled inductor, transformer and SEPIC modes Autotransformer and series modes Parallel mode Specifications @ 25C Leads connected in parallel Leads connected in series Part Number L (H) DCR Max () Irated (A) Isat (A) Irms (A) L (H) DCR Max () Irated (A) Isat (A) Irms (A) HM78D-12104R7MLF 4.7020% 0.014 10.60 18.00 7.559 18.8025% 0.056 5.30 9.00 3.780 HM78D-12106R8MLF 6.8020% 0.017 10.40 14.20 6.860 27.2025% 0.068 5.20 7.10 3.430 HM78D-12108R2MLF 8.2020% 0.018 9.50 12.85 6.667 32.8025% 0.072 4.75 6.45 3.333 HM78D-1210100MLF HM78D-1210220MLF HM78D-1210330MLF HM78D-1210470MLF HM78D-1210560MLF HM78D-1210680MLF HM78D-1210101MLF HM78D-1210121MLF HM78D-1210331MLF HM78D-1210471MLF 10.0020% 22.0020% 33.0020% 47.0020% 56.0020% 68.0020% 100.0020% 120.0020% 330.0020% 470.0020% 0.020 0.040 0.050 0.065 0.081 0.098 0.128 0.170 0.440 0.570 8.60 5.40 4.50 3.70 3.28 2.96 2.54 2.38 1.32 1.22 11.75 8.20 6.60 5.50 4.90 4.45 3.70 3.40 2.10 1.80 6.325 4.472 4.000 3.508 3.143 2.857 2.500 2.169 1.348 1.185 41.1225% 88.0025% 132.0025% 188.0025% 224.0025% 272.0025% 400.0025% 480.0025% 1320.0025% 1880.0025% 0.080 0.160 0.200 0.260 0.324 0.392 0.512 0.680 1.760 2.280 4.30 2.70 2.25 1.85 1.64 1.48 1.27 1.19 0.66 0.61 5.85 4.10 3.30 2.75 2.45 2.20 1.85 1.70 1.05 0.90 3.162 2.236 2.000 1.754 1.571 1.429 1.250 1.085 0.674 0.592 Notes : (1) Inductance is measured at 100kHz, 0.1Vrms, 0Adc. (2) When leads connected in parallel, DCR is half the value. When lead connected in series, DCR is twice the value (3) Isat current is the saturation current at which inductance rolls off approximately 30% from its initial (zero DC) value. (4) Irms equals DC current, that causes component to increase by approximately 40C from 25C ambient. (5) Irated current is the rated current at which inductance rolls off approximately 10% from its initial (zero DC) value. Mechanical Outline (mm) Recommended PCB Patern General Note TT Electronics reserves the right to make changes in product specification without notice or liability. All information is subject to TT Electronics' own data and is considered accurate at time of going to print. (c) TT Electronics plc BI Technologies A-1445, Jalan Tanjung Api 25050 Kuantan Pahang Darul Makmur Malaysia Ph: +60 9 565 8888 Fax: +60 9 514 3555 http://www.ttelectronics.com/magnetics/customer-service-enquiry Rev. 03 8.17 Surface Mount Coupled Inductors MODELS HM78D1210XXXMLF Packaging 1) Tape and reel packaging. 2) 300pcs per 13" reel. Ordering Information HM78D-1210 XXX M LF TR Model Series Tape & Reel Packing Inductance Code: First 2 digits are significant. Last digit denotes the number of trailing zeros. For values below 10uH, "R" denotes the decimal point. Lead-Free Inductance Tolerance K=10% M=20% General Note TT Electronics reserves the right to make changes in product specification without notice or liability. All information is subject to TT Electronics' own data and is considered accurate at time of going to print. (c) TT Electronics plc BI Technologies A-1445, Jalan Tanjung Api 25050 Kuantan Pahang Darul Makmur Malaysia Ph: +60 9 565 8888 Fax: +60 9 514 3555 http://www.ttelectronics.com/magnetics/customer-service-enquiry Rev. 03 8.17