Document
Technical Data 4315
Effective September 2017 Supersedes April 2014
DR
High power density, high efficiency, shielded drum core power inductors
Product features
• Four sizes of shielded drum core inductors • Inductance range from 0.33 µH to 1000 µH • Current range up to 56 A peak • Magnetically shielded • Secure mounting • Ferrite core material
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
• Operating temperature range: -40 °C to +125 °C (ambient plus self-temperature rise)
• Solder reflow temperature: J-STD-020 (latest revision) compliant
Pb
HALOGEN
HF
FREE
Technical Data 4315
Effective September 2017
Product specifications
Part Number DR73-R33-R DR73-1R0-R DR73-1R5-R DR73-2R2-R DR73-3R3-R DR73-4R7-R DR73-6R8-R DR73-8R2-R DR73-100-R DR73-150-R DR73-220-R DR73-330-R DR73-470-R DR73-680-R DR73-820-R DR73-101-R DR73-151-R DR73-221-R DR73-331-R DR73-471-R DR73-681-R DR73-821-R DR73-102-R
Rated Inductance
(μH) 0.33 1.00 1.50 2.20 3.30 4.70 6.80 8.20 10.0 15.0 22.0 33.0 47.0 68.0 82.0 100 150 220 330 470 680 820 1000
OCL1 ±20% (μH) 0.306 0.992 1.482 2.070 3.540 4.422 6.480 8.930 10.30 15.01 22.65 34.41 48.62 68.91 80.37 101.4 150.9 223.3 325.5 465.8 676.5 821.7 995.0
I2
rms
(A) 6.21 5.28 4.67 4.15 3.31 3.09 2.55 2.19 2.08 1.83 1.62 1.31 1.08 0.89 0.86 0.73 0.58 0.52 0.42 0.35 0.29 0.27 0.26
I3
sat
(A) Peak 14.4 7.97 6.52 5.52 4.22 3.78 3.12 2.66 2.47 2.05 1.67 1.35 1.14 0.96 0.89 0.79 0.65 0.53 0.44 0.37 0.31 0.28 0.25
DCR4 (Ω) Typ. 0.0073 0.0102 0.0130 0.0165 0.0259 0.0297 0.0435 0.0592 0.0656 0.0844 0.107 0.166 0.241 0.358 0.384 0.527 0.851 1.05 1.59 2.36 3.47 3.93 4.34
Volt-μsec5 Typ. 1.98 3.56 4.36 5.15 6.73 7.52 9.11 10.7 11.5 13.9 17.0 21.0 24.9 29.7 32.1 36.0 44.0 53.5 64.5 77.2 93.1 103 113
1. Open Circuit Inductance Test Parameters: 100 kHz, 0.25 Vrms, 0.0 Adc. 2. RMS current for an approximate DT of 40 °C without core loss.
It is recommended that the temperature of the part not exceed +125 °C. 3. Peak current for approximate 30% roll off at +20 °C. 4. DCR limits @ +20 °C. 5. Applied Volt-Time product (V-μs) across the inductor. This value represent the
applied V-μsec 100 kHz necessary to generate a core loss equal to 10% of the total losses for 40 °C temperature rise.
6. Part number definition: DRxxx-yyy-R - DRxxx = product code and size, - yyy = inductance value in μH, - R = decimal point. If no R is present, third character = # of zeros - “-R” suffix = RoHS compliant
2
www.eaton.com/electronics
DR High power density, high efficiency, shielded drum core power inductors
Technical Data 4315
Effective September 2017
Product specifications
Part Number DR74-R33-R DR74-1R0-R DR74-1R5-R DR74-2R2-R DR74-3R3-R DR74-4R7-R DR74-6R8-R DR74-8R2-R DR74-100-R DR74-150-R DR74-220-R DR74-330-R DR.
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