Effective March 2019 Technical Data 4141 Supersedes September 2017 DR124 High power density, high efficiency, low profile shielded drum core power inductors Applications Notebook power LCD panels Desktop and servers DVD players and portable power devices DC-DC Converters Buck, boost, forward, and resonant converters Noise filtering and filter chokes Environmental Data Storage temperature range (Component): -40 C to +125 C Product features Operating temperature range: -40 C to +125 C Low profile surface mount inductor (ambient plus self-temperature rise) 12.5 mm x 12.5 mm x 4.5 mm shielded Solder reflow temperature: drum core J-STD-020 (latest revision) compliant Inductance range from 0.47 H to 1000 H Current range from 0.44 A to 24.4 A HALOGEN Frequency range up to 1 MHz HF Pb Ferrite core material FREETechnical Data 4141 DR124 Effective March 2019 High power density, high efficiency, low profile shielded drum core power inductors Product specifications Rated DCR DCR 1 2 3 Inductance OCL I I m 20C m +20C rms sat 4 Part Number (H) H20% (A) (A) Typ Max K-factor DR124-R47-R 0.47 0.42 16.0 24.40 2.2 2.7 17.51 DR124-1R0-R 1.0 0.83 13.9 18.00 3.00 3.6 12.50 DR124-1R5-R 1.5 1.37 11.1 14.00 4.75 5.7 9.73 DR124-2R2-R 2.2 2.04 9.1 11.45 5.92 7.1 7.96 DR124-3R9-R 3.9 3.80 7.0 8.40 12.50 15.0 5.84 DR124-4R7-R 4.7 4.88 6.5 7.65 13.50 16.2 5.15 DR124-6R8-R 6.8 6.10 5.6 6.47 18.06 21.7 4.61 DR124-8R2-R 8.2 7.45 5.2 6.22 21.67 26.0 4.17 DR124-100-R 10 8.94 4.5 5.80 23.33 28.0 3.81 DR124-120-R 12 11.5 4.1 4.96 31.67 38.0 3.50 DR124-150-R 15 14.2 3.6 4.62 37.30 44.8 3.02 DR124-180-R 18 16.2 3.4 4.32 46.97 56.4 2.82 DR124-220-R 22 20.7 3.2 3.83 53.99 64.8 2.50 DR124-270-R 27 25.7 2.8 3.44 66.67 80.0 2.24 DR124-330-R 33 31.2 2.6 3.12 80.83 97.0 2.04 DR124-390-R 39 37.3 2.3 2.85 110.00 132.0 1.86 DR124-470-R 47 44.0 2.2 2.63 124.66 149.6 1.72 DR124-560-R 56 54.9 2.0 2.35 144.32 173.2 1.54 DR124-680-R 68 67.1 1.8 2.13 183.33 220.0 1.39 DR124-820-R 82 80.5 1.7 1.94 212.72 255.3 1.27 DR124-101-R 100 95.1 1.5 1.79 256.67 308.0 1.17 DR124-121-R 120 111 1.3 1.65 311.18 373.4 1.08 DR124-151-R 150 146 1.3 1.44 371.02 445.2 0.94 DR124-181-R 180 179 1.1 1.30 501.66 602.0 0.87 DR124-221-R 220 216 1.0 1.15 558.00 669.6 0.77 DR124-271-R 270 256 0.88 1.09 725.00 870.0 0.71 DR124-331-R 330 327 0.83 0.92 825.00 990.0 0.63 DR124-471-R 470 460 0.68 0.74 1242.50 1491.0 0.53 DR124-681-R 680 669 0.56 0.65 1845.83 2215.0 0.45 DR124-821-R 820 825 0.53 0.62 2109.17 2351.0 0.40 DR124-102-R 1000 998 0.44 0.53 2898.00 3477.00 0.37 1. Open Circuit Inductance Test Parameters: 100 kHz, 0.25 V, 0.0 Adc. 4. K-factor: Used to determine B for core loss (see graph). p-p 2. I : DC current for an approximate T of 40 C without core loss. Derating is B = K*L*I, B (mT), K: (K factor from table), L: (Inductance in H), rms p-p p-p necessary for AC currents. PCB layout, trace thickness and width, air-flow, I (Peak to peak ripple current in Amps). and proximity of other heat generating components will affect the 5. Part Number Definition: DR124-xxx-R temperature rise. It is recommended that the temperature of the part not - DR124 = Product code and size -xxx = Inductance value in uH exceed +125 C under worst case operating conditions verified in the end - R = decimal point If no R is present, third character = of zeros. application. - -R suffix = RoHS compliant 3. I Amps peak for approximately 25% rolloff ( +25 C). sat www.eaton.com/electronics 2