SMD Power Inductors
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Features:
••Ferrite based SMD inductor with lower core loss.
•Ideal for LCD driver, DSC/DVC, Notebook PC or High density board design.
•Operating temperature range -55°C to + 130°C.
MCSDRH73B - Series
•High current output chokes, up to 8 amperes with about 30% roll off.
•Low profile 3.55 mm maximum height.
•Foot print : 7.6 × 7.6 mm maximum.
MCSDRH125B - Series
••High current output chokes, up to 24.2 amperes with about 30% roll off.
•Low profile 6 mm maximum height.
•Foot print : 12.5 × 12.5 mm maximum.
Top View Bottom View
Side View Suggest PCB Layout
Applications:
••Integrated DC/DC converter.
••Notebook computers.
••Excellent for power line DC-DC conversion
application used in hard disk, notebook
computers and other electronic equipment.
Figure 1
Figure 2
Dimensions : Millimetres
Top View Bottom View
Side View Suggest PCB Layout
SMD Power Inductors
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OCL
(µH)
±20%
DCR
(ΩΩ)
(Typical)
DCR
(ΩΩ)
(Maximum)
Isat
(A)
at 25°C
L at Isat
(µH)
(Typical)
Irms
(A)
at 25°C
L at Irms
(µH)
(Typical)
Part Number
1 0.0091 0.0109 8 0.785 6.5 0.89 MCSDRH73B-1R0MHF
1.5 0.0125 0.015 6.52 1.186 5.54 1.325 MCSDRH73B-1R5MHF
2.2 0.018 0.0216 5.52 1.7 4.6 1.95 MCSDRH73B-2R2MHF
3.3 0.023 0.0276 4.4 2.69 4.08 2.84 MCSDRH73B-3R3MHF
4.7 0.0297 0.0356 3.78 3.63 3.65 3.8 MCSDRH73B-4R7MHF
6.8 0.0415 0.0498 3.12 5.53 3.04 5.66 MCSDRH73B-6R8MHF
8.2 0.0525 0.063 2.8 6.5 2.7 6.7 MCSDRH73B-8R2MHF
10 0.0656 0.0787 2.5 8.16 2.35 8.48 MCSDRH73B-100MHF
15 0.08 0.096 2.05 10.3 2.12 9.65 MCSDRH73B-150MHF
22 0.108 0.13 1.67 15.25 1.83 13.9 MCSDRH73B-220MHF
33 0.166 0.199 1.35 24.75 1.48 19.75 MCSDRH73B-330MHF
47 0.231 0.277 1.14 33.2 1.25 27.9 MCSDRH73B-470MHF
68 0.331 0.397 0.96 48 1.04 41.33 MCSDRH73B-680MHF
82 0.41 0.492 0.89 55.05 0.94 49.3 MCSDRH73B-820MHF
100 0.491 0.589 0.79 71 0.86 60.33 MCSDRH73B-101MHF
150 0.751 0.901 0.65 100.8 0.69 88.9 MCSDRH73B-151MHF
220 1.05 1.26 0.53 156.3 0.59 126 MCSDRH73B-221MHF
330 1.59 1.908 0.44 252.7 0.48 219.9 MCSDRH73B-331MHF
470 2.17 2.604 0.37 320.2 0.41 263.7 MCSDRH73B-471MHF
680 3.12 3.744 0.31 542.1 0.34 467.3 MCSDRH73B-681MHF
820 4.01 4.812 0.28 591.3 0.3 515.5 MCSDRH73B-821MHF
1000 5.06 6.072 0.25 679.9 0.27 578.4 MCSDRH73B-102MHF
Electrical Characteristics
Type
MCSDRH73B
(Figure 1)
(mm)
MCSDRH125B
(Figure 2)
(mm)
A7.3 ±0.3 -12 ±0.5 -
B7.3 ±0.3 -12 ±0.5 -
C 3.55 (Maximum) 6 (Maximum)
D7 ±0.3 - 7 (Reference)
E 3.9 (Reference) 5 (Reference)
F 2 (Reference) 2.5 (Reference)
Mechanical Dimensions
SMD Power Inductors
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OCL
(µH)
±20%
DCR
(ΩΩ)
(Typical)
DCR
(ΩΩ)
(Maximum)
Isat
(A)
at 25°C
L at Isat
(µH)
(Typical)
Irms
(A)
at 25°C
L at Irms
(µH)
(Typical)
Part Number
0.82 0.0039 0.0047 24.2 0.659 15.5 0.807 MCSDRH125B-R82MHF
1.5 0.0052 0.00625 18.5 1.12 13.3 1.4 MCSDRH125B-1R5MHF
2.2 0.0064 0.0077 14.8 1.75 12 2.05 MCSDRH125B-2R2MHF
3.3 0.0079 0.0095 12.6 2.65 10.8 2.95 MCSDRH125B-3R3MHF
4.7 0.0107 0.01285 10.1 3.6 9.3 4 MCSDRH125B-4R7MHF
6.8 0.0119 0.0143 8.4 5.75 8.8 5.5 MCSDRH125B-6R8MHF
8.2 0.0156 0.0187 7.6 6.6 7.7 6.5 MCSDRH125B-8R2MHF
10 0.0164 0.0197 6.9 8.3 7.5 7.45 MCSDRH125B-100MHF
15 0.0268 0.0322 5.65 11.2 5.8 10.77 MCSDRH125B-150MHF
22 0.0318 0.0382 4.7 18.7 5.4 15.3 MCSDRH125B-220MHF
33 0.0445 0.0534 4 26.65 4.5 21.7 MCSDRH125B-330MHF
47 0.0659 0.079 3.2 37.95 3.7 29.4 MCSDRH125B-470MHF
68 0.0991 0.119 2.7 55.6 3.05 45.3 MCSDRH125B-680MHF
82 0.121 0.145 2.4 67 2.75 52 MCSDRH125B-820MHF
100 0.155 0.186 2.2 79 2.4 66.7 MCSDRH125B-101MHF
150 0.217 0.26 1.8 124.8 2.05 98 MCSDRH125B-151MHF
220 0.321 0.385 1.5 182.4 1.7 148 MCSDRH125B-221MHF
330 0.434 0.52 1.2 284 1.45 206.5 MCSDRH125B-331MHF
470 0.627 0.753 1 402 1.2 293 MCSDRH125B-471MHF
680 0.888 1.066 0.85 548 1 404 MCSDRH125B-681MHF
820 1.093 1.312 0.76 680 0.92 511 MCSDRH125B-821MHF
1000 1.409 1.69 0.69 801 0.8 610 MCSDRH125B-102MHF
Electrical Characteristics
Note :
1. OCL (Open Circuit Inductance) and L at Irms and L at Isat and DCR are measured at: 100 KHz, 0.25 V at 25ºC.
2. Isat : DC current that causes inductance to drop by approximately 30% from OCL; (Ta= 25ºC).
3. Irms : DC current that causes an approximate temperature rise (∆T) of 40°C; (Ta= 25ºC).
4. Inductance Vs. DC bias curve, please see the next page to get more detail information.
5. Inductance tolerance: ±20%, Base type: Plastic.
SMD Power Inductors
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Inductance vs. Current
SMD Power Inductors
Page <5> 20/06/11 V1.1
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Inductance vs. Current
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