Technical Data 4085
Effective June 2014
Supersedes September, 2010
Coiltronics HCM0703 Series
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 regulators
Battery power systems
Graphics cards
Data networking and storage systems
Environmental data
•
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
HALOGEN
Product description
•
•
•
•
•
•
•
•
•
•
•
High current carrying capacity
Low core losses
Magnetically shielded, low EMI
Frequency range up to 5MHz
Inductance range from 0.15μH to 33μH
Current range from 1.8A to 52A
7.4x7.0mm footprint surface mount
package in a 3.0mm height
Powder iron core material
Halogen free, lead free, RoHS compliant
Pb
HF
FREE
The Coiltronics brand of
magnetics (formerly of
the Bussmann Division of
Cooper Industries)
is now part of
Eaton’s Electrical Group,
Electronics Division.
Coiltronics is now
part of Eaton
Same great
products plus
even more.
Technical Data 4085
E
ffective June 2014
Product specifications
OCL
1
(μH) ±20%
0.15
0.22
0.47
0.68
0.82
1.00
1.50
2.20
3.30
4.70
6.80
8.20
10.0
33.0
FLL min.
2
(μH)
0.09
0.13
0.28
0.41
0.49
0.60
0.90
1.32
1.98
2.82
4.08
4.92
6.00
19.8
I
rms3
(amps)
26.0
23.0
17.5
15.5
13.0
11.0
9.00
8.00
6.00
5.50
4.50
4.00
3.20
1.80
I
sat4
(amps)
52.0
40.0
26.0
25.0
24.0
22.0
18.0
14.0
13.5
10.0
8.00
7.50
7.00
2.00
HCM0703 Series
High current, power inductors
Part Number
6
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
HCM0703-330-R
DCR (mΩ)
@ 20°C
Typical
1.90
2.50
4.00
5.00
6.70
9.00
14.0
18.0
28.0
37.0
54.0
64.0
70.5
220
DCR (mΩ)
@ 20°C
Maximum
2.50
2.80
4.20
5.50
8.00
10.0
15.0
20.0
30.0
40.0
60.0
68.0
77.6
242
K-factor
5
1044
986
580
455
439
374
366
281
252
210
151
142
132
76
1. Open Circuit Inductance (OCL) Test Parameters: 100kHz, 0.25V
rms
, 0.0Adc,
+25°C.
2. Full Load Inductance (FLL) Test Parameters: 100kHz, 0.25V
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). B
p-p
= K * L *
∆I.
B
p-p
: (Gauss), K: (K-factor from table), L: (Inductance in μH),
∆I
(Peak to peak
ripple current in amps).
6. Part Number Definition: HCM0703-yyy-R
- HCM0703 = Product code and size
- yyy= Inductance value in μH, R = decimal point,
if no R is present then third character = 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
digit is # of zeroes
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 Series
High current, power inductors
Packaging information - mm
Technical Data 4085
E
ffective June 2014
Supplied in tape and reel packaging, 1500 parts per 13” diameter reel.
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
Total Loss (W)
0.6
0.8
1.0
1.2
www.eaton.com/elx
3
Technical Data 4085
E
ffective June 2014
Core loss
HCM0703 Series
High current, power inductors
Core Loss vs. B
p-p
10000
1000
1MHz
500KHz
300KHz
200KHz
100KHz
Core Loss (mW)
100
10
1
0.1
100
1000
10000
B
p-p
(Gauss)
Inductance characteristics
110%
100%
90%
HCM0703-R15
110%
100%
90%
HCM0703-R22-R
% of OCL
80%
70%
60%
50%
40%
0
10
20
30
40
50
60
70
% of OCL
80%
70%
60%
50%
40%
0
10
20
30
40
50
60
70
I
dc
(Amps)
I
dc
(Amps)
4
www.eaton.com/elx
HCM0703 Series
High current, power inductors
Inductance characteristics
110%
100%
90%
Technical Data 4085
E
ffective June 2014
HCM0703-R47-R
110%
100%
90%
HCM0703-R68-R
% of OCL
80%
70%
60%
50%
40%
0
5
10
15
20
25
30
35
40
45
50
% of OCL
80%
70%
60%
50%
40%
0
5
10
15
20
25
30
35
40
45
I
dc
(Amps)
I
dc
(Amps)
110%
100%
90%
HCM0703-R82-R
110%
100%
90%
HCM0703-1R0-R
% of OCL
% of OCL
80%
70%
60%
50%
40%
0
5
10
15
20
25
30
35
40
45
80%
70%
60%
50%
40%
0
5
10
15
20
25
30
35
40
I
dc
(Amps)
I
dc
(Amps)
110%
100%
90%
HCM0703-1R5-R
110%
100%
90%
HCM0703-2R2-R
% of OCL
% of OCL
80%
70%
60%
50%
40%
0
5
10
15
20
25
30
35
80%
70%
60%
50%
40%
0
5
10
15
20
25
30
I
dc
(Amps)
I
dc
(Amps)
www.eaton.com/elx
5
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