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: -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
Packaging
• Supplied in tape and reel packaging, 2000 parts per 13” diameter reel
Pb
HALOGEN
HF
FREE
Description
• Halogen Free, lead free, RoHS compliant
• 125°C maximum total temperature operation
• 5.5 x 5.3 x 3.0mm maximum surface mount package
• Powder iron core material
• Magnetically shielded, low EMI
• High current carrying capacity, low core losses
• Inductance range from 0.20μH to 1.0μH
• Current range from 8.5 to 22.2 Amps
• Frequency range up to 1MHz
High Current, Power Inductors
HCM0503 Series
1111 BU-SB111267 Page 1 of 4 Data Sheet: 4430
SMD Device
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.
3I
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.
4I
sat: Peak current for approximately 20% rolloff at +25°C.
5 K-factor: Used to determine Bp-p for core loss (see graph). Bp-p = K *L *ΔI. Bp-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 3rd digit equals number of zeros.
• “-R” suffix = RoHS compliant
Product Specifications
Part OCL1 (μH) FLL min,2Irms3Isat4 @ 25°C DCR (mΩ) @ 20°C DCR (mΩ) @ 20°C
Number6±20% (μH) (Amps) (Amps) (Typical) (Maximum) K-factor5
HCM0503-R20-R 0.20 0.128 22.2 21.0 2.10 2.31 1764
HCM0503-R35-R 0.35 0.224 16.6 14.9 3.90 4.29 1259
HCM0503-R75-R 0.75 0.480 11.3 9.7 8.50 9.35 801
HCM0503-1R0-R 1.00 0.640 10.1 8.5 10.40 11.44 588
DDiimmeennssiioonnss -- mmmm
0.0
10.0
20.0
30.0
40.0
50.0
60.0
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5
Temperature Rise ( °C)
Total Loss (W)
HCM0503-R20-R HCM0503-R35-R HCM0503-R7 5-R HCM0503-1R0-R
Packaging Information - mm
Temperature Rise vs. Total Loss
1111 BU-SB111267 Page 2 of 4 Data Sheet: 4430
Supplied in tape-and-reel packaging, 2000 parts per 13” diameter reel.
1111 BU-SB111267 Page 3 of 4 Data Sheet: 4430
25K
50K
100K
200K
300K
500K
0.001
0.01
0.1
1
10
100
1000
10000
10 100 1000 10000
Core Loss (mW)
Bp-p (Gauss)
Core Loss vs. B p-p
40%
50%
60%
70%
80%
90%
100%
110%
0 2 4 6 8 101214161820222426
% of OCL
Idc (Amps)
HCM0503-R20-R
40%
50%
60%
70%
80%
90%
100%
110%
0 2 4 6 8 10 12 14 16 18 20
% of OCL
Idc (Amps)
HCM0503-R35-R
40%
50%
60%
70%
80%
90%
100%
110%
02468101214
% of OCL
Idc (Amps)
HCM0503-R75-R
40%
50%
60%
70%
80%
90%
100%
110%
02468101214
% of OCL
Idc (Amps)
HCM0503-1R0-R
Inductance Characteristics
Core Loss
© 2011 Cooper Bussmann
www.cooperbussmann.com
1111 BU-SB111267 Page 4 of 4 Data Sheet: 4430
The only controlled copy of this Data Sheet is the electronic read-only version located on the Cooper Bussmann Network Drive. All other copies of this document are by definition uncon-
trolled. This bulletin is intended to clearly present comprehensive product data and provide technical information that will help the end user with design applications. Cooper Bussmann
reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Cooper Bussmann also reserves the right to
change or update, without notice, any technical information contained in this bulletin. Once a product has been selected, it should be tested by the user in all possible applications.
Life Support Policy: Cooper Bussmann does not authorize the use of any of its products for use in life support devices or systems without the express written approval of an officer of the
Company. Life support systems are devices which support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the label-
ing, can be reasonably expected to result in significant injury to the user.
North America
Cooper Electronic Technologies
1225 Broken Sound Parkway NW
Suite F
Boca Raton, FL 33487-3533
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645
Cooper Bussmann
P.O. Box 14460
St. Louis, MO 63178-4460
Tel: 1-636-394-2877
Fax: 1-636-527-1607
Europe
Cooper Electronic Technologies
Cooper (UK) Limited
Burton-on-the-Wolds
Leicestershire • LE12 5TH UK
Tel: +44 (0) 1509 882 737
Fax: +44 (0) 1509 882 786
Cooper Electronic Technologies
Avda. Santa Eulalia, 290
08223
Terrassa, (Barcelona), Spain
Tel: +34 937 362 812
+34 937 362 813
Fax: +34 937 362 719
Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160
Solder Reflow Profile
Temperature
t
tP
ts
TC -5°C
Time 25°C to Peak Time
25°C
Tsmin
Tsmax
TL
TP
Preheat
A
Max. Ramp Up Rate = 3°C/s
Max. Ramp Down Rate = 6°C/s
T
T
a
a
b
b
l
l
e
e
1
1
-
-
S
S
t
t
a
a
n
n
d
d
a
a
r
r
d
d
S
S
n
n
P
P
b
b
S
S
o
o
l
l
d
d
e
e
r
r
(
(
T
T
c
c
)
)
Volume Volume
Packagemm
3mm3
Thickness <350 >
_350
<2.5mm 235°C220°C
>
_2.5mm 220°C220°C
T
T
a
a
b
b
l
l
e
e
2
2
-
-
L
L
e
e
a
a
d
d
(
(
P
P
b
b
)
)
F
F
r
r
e
e
e
e
S
S
o
o
l
l
d
d
e
e
r
r
(
(
T
T
c
c
)
)
Volume Volume Volume
Packagemm
3mm3mm3
Thickness <350 350 - 2000 >2000
<1.6mm 260°C260°C260°C
1.6 – 2.5mm 260°C250°C245°C
>2.5mm 250°C245°C245°C
Reference JDEC J-STD-020D
Profile Feature Standard SnPb Solder Lead (Pb) Free Solder
Preheat and Soak• Temperature min. (Tsmin) 100°C150°C
• Temperature max. (Tsmax) 150°C200°C
• Time (Tsmin to Tsmax) (ts)60-120 Seconds60-120 Seconds
A
verage ramp up rate Tsmaxto Tp3°C/ Second Max. 3°C/ Second Max.
Liquidous temperature (T
L
) 183°C217°C
Time at liquidous (tL)60-150 Seconds60-150 Seconds
Peak package body temperature (TP)*Table 1Table 2
Time (tp)** within 5 °C of the specified classification temperature (Tc) 20 Seconds** 30 Seconds**
A
verage ramp-down rate (Tpto Tsmax)6°C/ Second Max. 6°C/ Second Max.
Time 25°C to Peak Temperature6 Minutes Max. 8 Minutes Max.
* Tolerance for peak profile temperature (Tp) is defined as a supplier minimum and a user maximum.
** Tolerance for time at peak profile temperature (tp) is defined as a supplier minimum and a user maximum.
