Technical Data
4085
Effective March 2016
Supersedes December 2014
HCM0703
High current power inductors
Applications
•
•
•
•
•
•
•
•
•
Voltage Regulator Module (VRM)
Multi-phase regulators
Point-of-loadmodules
Desktop and server VRMs and EVRDs
Base station equipment
Laptop and notebook regulators
Battery power systems
Graphics cards
Data networking and storage systems
Environmental Data
Description
•
•
•
•
•
•
•
•
High current carrying capacity
Low core losses
Magnetically shielded, low EMI
Frequency range up to 5 MHz
Inductance range from 0.15 μH to 33 μH
Current range from 1.8 A to 52 A
7.4 mm x
6.8
mm footprint surface
mount package in a 3.0 mm height
Iron powder core material
Halogen free, lead free, RoHS compliant
Storage temperature range (Component):
-55 °C to +125 °C
Operating temperature range: -55 °C to +125 °C
(ambient plus self-temperature rise)
Solder reflow temperature: J-STD-020D
compliant
•
•
Pb
HF
FREE
HALOGEN
•
•
Technical Data
4085
Effective March 2016
HCM0703
High current power inductors
Product Specifications
OCL
1
(μH) ±20%
FLL
2
(μH)
minimum
I
rms3
(A )
I
sat4
(A )
DCR (mΩ)
typical @ 20 °C
DCR (mΩ)
maximum @ 20 °C
Part Number
6
K-factor
5
HCM0703-R15-R
HCM0703-R22-R
HCM0703-R47-R
HCM0703-R68-R
HCM0703-R82-R
HCM0703- 1R0-R
HCM0703- 1R5-R
HCM0703- 2R2-R
HCM0703- 3R3-R
HCM0703- 4R7-R
HCM0703- 6R8-R
HCM0703- 8R2-R
HCM0703- 100-R
HCM0703- 150-R
HCM0703- 220-R
HCM0703- 330-R
0.15
0.22
0.47
0.68
0.82
1.0
1.5
2.2
3.3
4.7
7
8
10
14.9±15%
22
33
0.09
0.13
0.28
0.41
0.49
0.60
0.90
1.3
2.0
2.8
4.1
4.9
6.0
10.1
14.1
19.8
26
23
17.5
15.5
13
11
9.0
8.0
6.0
5.5
4.5
4.0
3.2
2.2
2.3
1.8
52
40
26
25
24
22
18
14
13.5
10
8.0
7.5
7.0
5.0
3.0
2.2
1.9
2.5
4.0
5.0
6.7
9.0
14
18
28
37
54
64
71
113
135
220
2.5
2.8
4.2
5.5
8.0
10
15
20
30
40
60
68
78
127
149
242
1044
986
580
455
439
374
366
281
252
210
151
142
132
105
83
76
1. Open Circuit Inductance (OCL) Test Parameters: 100 kHz, 0.25 V
rms
, 0.0 Adc, +25°C.
2. Full Load Inductance (FLL) Test Parameters: 100 kHz, 0.25 V
rms
, I
sat
, @ +25 °C.
3. 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.
4. I
sat
: Peak current for approximately 20% rolloff at +25 °C.
5. K-factor: Used to determine B
p-p
for core loss (see graph). Bp-p = K * L *
ΔI.
B
p-p
: (Gauss), K: (K-factor from table), L:
(Inductance in μH),
ΔI
(Peak to peak ripple current in Amps).
6. Part Number Definition: HCM0703-xxx-R
HCM0703 = 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
Dimensions (mm)
Part marking: XXX=Inductance value in uH, R= decimal point. If no R is present then last character equals number of zeros.
wly=date code, R=revision level
All soldering surfaces to be coplanar within 0.10 millimeters
Tolerances are ±0.3 millimeters unless stated otherwise
Color: Grey
2
www.eaton.com/elx
HCM0703
High current power inductors
Packaging information (mm)
Supplied in tape and reel packaging, 1500 parts per 13” diameter reel.
Technical Data
4085
Effective March 2016
Temperature rise vs. total loss
50.0
40.0
Temperature Rise (°C)
30.0
20.0
10.0
0.0
0.0
0.2
0.4
0.6
0.8
1.0
1.2
Total Loss (W)
www.eaton.com/elx
3
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