Technical Data
4430
Effective June 2015
Supersedes June 2014
HCM0503
High current power inductors
Applications
•
•
•
•
•
•
•
•
•
Voltage Regulator Module (VRM)
Multi-phase regulators
Point-of-Load modules
Desktop and server VRMs and EVRDs
Base station equipment
Notebook and laptop 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 1MHz
Inductance range from 0.2μH to 22μH
Current range from 1.9 to 22 amps
5.5 x 5.3mm footprint surface mount package in
a 3.0mm 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 + self-temperature rise)
Solder reflow temperature: J-STD-020D
compliant
•
•
Pb
HF
FREE
HALOGEN
•
•
Technical Data
4430
Effective June 2015
HCM0503
High current power inductors
Product Specifications
OCL
1
(μH) ± 20%
FLL
2
(μH)
minimum
I
rms3
(amps)
I
sat4
(amps)
DCR (mΩ)
typical @ 20°C
DCR (mΩ)
maximum @ 20°C
Part Number
6
K-factor
5
HCM0503-R20-R
HCM0503-R35-R
HCM0503-R47-R
HCM0503-R75-R
HCM0503-1R0-R
HCM0503-1R5-R
HCM0503-2R2-R
HCM0503- 3R3-R
HCM0503-4R7-R
HCM0503-5R6-R
HCM0503-100-R
HCM0503-150-R
HCM0503-220-R
0.20
0.35
0.47
0.75
1.0
1.5
2.2
3.3
4.7
5.6
10
15
22
0.13
0.22
0.30
0.48
0.64
0.96
1.4
2.1
3.0
3.6
6.4
9.6
14
22.2
16.6
12.0
11.3
10.1
7.5
6.8
5.5
4.5
4.3
2.8
2.4
1.9
21.0
14.9
11.5
9.7
8.5
7.0
6.5
6.0
5.5
3.5
2.3
2.1
1.9
2
4
6
8
10
17
23
36
54
63
122
138
260
2.3
4.3
7.2
9.4
12
19
25
41
60
71
132
166
270
1764
1259
820
801
588
393
325
273
226
206
158
127
106
1. Open Circuit Inductance (OCL) Test Parameters: 100kHz, 0.25Vrms, 0.0Adc, @ +25°C
2. Full Load Inductance (FLL) Test Parameters: 100kHz, 0.25Vrms, @ 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 @ +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: HCM0503-xxx-R
HCM0503 = 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)
Recommended Pad Layout
5.15
±0.35
3.0
max
1.0
±0.3
3.15
typ.
2.2
Schematic
1
5.10
±0.2
2.05
2.2
1
2
XXX
wly
R
1
1.5
±0.30
1
2
2
2
a
b
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 0.1 millimeters
Tolerances are ±0.2 millimeters unless stated otherwise
DCR measured from point “a” to point “b”
Color: Grey
Do not route traces or vias underneath the inductor
2
www.eaton.com/elx
HCM0503
High current power inductors
Packaging information (mm)
Supplied in tape and reel packaging, 2,000 parts per 13” diameter reel
4.0
1.5 dia
2.0
1.5 dia
Technical Data
4430
Effective June 2015
A
1
1.75
7.5
16.0
±-0.3
5.7
5.2
2
2.9
3.2
2.0
5.4
8.0
A
User direction of feed
SECTION A – A
Temperature rise vs. total loss
50
40
Temperature Rise (°C)
30
20
10
0
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
Total Loss (W)
www.eaton.com/elx
3
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