Effective September 2017 Technical Data 4315 Supersedes April 2014 DR High power density, high efficiency, shielded drum core power inductors Applications Desktop and servers DVD and media players Portable and handheld devices LCD panels 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 Four sizes of shielded drum core inductors (ambient plus self-temperature rise) Inductance range from 0.33 H to 1000 H Solder reflow temperature: Current range up to 56 A peak J-STD-020 (latest revision) compliant Magnetically shielded Secure mounting HALOGEN Ferrite core material Pb HF FREEDR Technical Data 4315 Effective September 2017 High power density, high efficiency, shielded drum core power inductors Product specifications 1 3 4 Rated OCL I DCR sat 2 5 Inductance 20% I (A) () Volt- sec rms Part Number (H) (H) (A) Peak Typ. Typ. DR73-R33-R 0.33 0.306 6.21 14.4 0.0073 1.98 DR73-1R0-R 1.00 0.992 5.28 7.97 0.0102 3.56 DR73-1R5-R 1.50 1.482 4.67 6.52 0.0130 4.36 DR73-2R2-R 2.20 2.070 4.15 5.52 0.0165 5.15 DR73-3R3-R 3.30 3.540 3.31 4.22 0.0259 6.73 DR73-4R7-R 4.70 4.422 3.09 3.78 0.0297 7.52 DR73-6R8-R 6.80 6.480 2.55 3.12 0.0435 9.11 DR73-8R2-R 8.20 8.930 2.19 2.66 0.0592 10.7 DR73-100-R 10.0 10.30 2.08 2.47 0.0656 11.5 DR73-150-R 15.0 15.01 1.83 2.05 0.0844 13.9 DR73-220-R 22.0 22.65 1.62 1.67 0.107 17.0 DR73-330-R 33.0 34.41 1.31 1.35 0.166 21.0 DR73-470-R 47.0 48.62 1.08 1.14 0.241 24.9 DR73-680-R 68.0 68.91 0.89 0.96 0.358 29.7 DR73-820-R 82.0 80.37 0.86 0.89 0.384 32.1 DR73-101-R 100 101.4 0.73 0.79 0.527 36.0 DR73-151-R 150 150.9 0.58 0.65 0.851 44.0 DR73-221-R 220 223.3 0.52 0.53 1.05 53.5 DR73-331-R 330 325.5 0.42 0.44 1.59 64.5 DR73-471-R 470 465.8 0.35 0.37 2.36 77.2 DR73-681-R 680 676.5 0.29 0.31 3.47 93.1 DR73-821-R 820 821.7 0.27 0.28 3.93 103 DR73-102-R 1000 995.0 0.26 0.25 4.34 113 1. Open Circuit Inductance Test Parameters: 100 kHz, 0.25 V , 0.0 Adc. 6. Part number definition: DRxxx-yyy-R rms 2. RMS current for an approximate DT of 40 C without core loss. - DRxxx = product code and size, It is recommended that the temperature of the part not exceed +125 C. - yyy = inductance value in H, 3. Peak current for approximate 30% roll off at +20 C. - R = decimal point. If no R is present, third character = of zeros 4. DCR limits +20 C. - -R suffix = RoHS compliant 5. Applied Volt-Time product (V- s) across the inductor. This value represent the applied V- sec 100 kHz necessary to generate a core loss equal to 10% of the total losses for 40 C temperature rise. www.eaton.com/electronics 2