2
Technical Data 4139
Effective April 2016
DR1050
Shielded power inductors
www.eaton.com/elx
Product Specifications
Part Number
5
OCL
1
(μH) ±30%
I
rms
2
(A)
I
sat
3
(A)
DCR (mΩ)
typical
@ 20°C
DCR (mΩ)
maximum
@ 20°C K-factor
4
DR1050-R80-R 0.70 9.70 13.5 3.2 4.0 20.47
DR1050-1R5-R 1.37 8.60 10.5 4.0 5.0 14.62
DR1050-2R2-R 2.27 7.52 9.3 5.6 6.8 11.37
DR1050-3R3-R 3.21 6.50 8.2 8.0 10 9.30
DR1050-4R7-R 4.43 6.13 6.7 10 12 7.87
DR1050-6R8-R 6.30 5.45 5.8 13 17 6.82
DR1050-8R2-R 8.09 5.24 5.0 15 19 6.02
DR1050-100-R 10.1 4.80 4.6 18 23 5.39
DR1050-120-R 11.6 3.94 4.1 24 30 4.87
DR1050-150-R 14.8 3.80 3.7 26 33 4.45
DR1050-180-R 17.5 3.39 3.3 33 41 4.09
DR1050-220-R 23.5 3.12 3.0 39 48 3.53
DR1050-270-R 26.9 2.82 2.8 43 53 3.30
DR1050-330-R 34.3 2.56 2.5 58 72 2.92
DR1050-390-R 38.3 2.35 2.35 61 76 2.77
DR1050-470-R 47.1 2.06 2.10 89 111 2.50
DR1050-560-R 56.7 1.96 1.94 98 123 2.27
DR1050-680-R
67.2 1.84 1.70 111 139 2.09
DR1050-820-R 84.4 1.60 1.58 147 184 1.86
DR1050-101-R 97.5 1.52 1.45 164 205 1.73
DR1050-121-R 118 1.30 1.30 223 279 1.57
DR1050-151-R 149 1.26 1.15 238 298 1.40
DR1050-181-R 184 1.18 1.08 273 341 1.26
DR1050-221-R 222 1.00 0.98 377 472 1.15
DR1050-271-R 264 0.96 0.90 410 513 1.06
DR1050-331-R 321 0.83 0.80 554 693 0.96
DR1050-391-R 397 0.76 0.72 648 810 0.86
DR1050-471-R 481 0.64 0.62 855 1069 0.78
DR1050-561-R 573 0.62 0.60 970 1213 0.72
DR1050-681-R 708 0.56 0.55 1095 1369 0.64
DR1050-821-R 819 0.54 0.50 1185 1481 0.60
DR1050-102-R 1000 0.43 0.48 1528 1950 0.54
1. Open Circuit Inductance (OCL) Test Parameters: 100 kHz, 0.1 Vrms, 0.0 Adc, +25 °C
2. I
rms
: DC current for an approximate temperature rise of 40 °C without core loss. Derating is necessary for AC currents.
PCB layout, trace thickness and width, air-flow, and proximity of other heat generating components will affect the
temperature rise. It is recommended that the temperature of the part not exceed 125 °C under worst case operating
conditions verified in the end application.
3. I
sat
: Peak current for approximately 35% rolloff @ +25 °C
4. K-factor: K-factor: Used to determine Bp-p for core loss (see graph). Bp-p = K * L * ΔI. Bp-p: (mT),
K: (K-factor from table), L: (Inductance in μH), ΔI (Peak to peak ripple current in Amps).
5. Part Number Definition: DR1050-xxx-R
DR1050 = Product code and size
-xxx= inductance value in μH, R= decimal point,
If no R is present then last character equals number of zeros
-R suffix = RoHS compliant
