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HC8LP Series
Power Inductors
Description
• 155°C maximum temperature operation
• Low profile surface mount inductors designed
for higher speed switch mode applications
requiring low voltage, and high current
• Design utilizes high temperature powder iron material
with a non-organic binder to eliminate thermal aging
• Inductance range from 0.17 uH to 47.9 uH
• Current range from 29 Amps to 1.8 Amps
• Frequency range 1kHz to 500kHz
Applications
• Next generation processors
• High current DC-DC converters
• VRM, multi-phase buck regulator
• PC Workstations, Routers, Servers
• Telecom soft switches, Base stations
Environmental Data
• Storage temperature range: -40°C to +155°C
• Operating temperature range: -40°C to +155°C
(Range is application specific)
• Solder reflow temperature: +260°C max. for
10 seconds max.
Part
Number
HC8LP-R15-R
HC8LP-R39-R
HC8LP-R75-R
HC8LP-1R2-R
HC8LP-1R9-R
HC8LP-2R6-R
HC8LP-3R5-R
HC8LP-4R5-R
HC8LP-5R6-R
HC8LP-6R9-R
HC8LP-8R2-R
HC8LP-100-R
HC8LP-150-R
HC8LP-220-R
HC8LP-330-R
HC8LP-470-R
Rated
Inductance
µH
0.15
0.39
0.75
1.2
1.9
2.6
3.5
4.5
5.6
6.9
8.2
10.0
15.0
22.0
33.0
47.0
OCL (1)
nominal
+/-20% µH
0.170
0.430
0.830
1.35
1.92
2.67
3.56
4.57
5.71
6.98
8.37
9.90
15.20
21.70
32.10
47.90
RoHS
2002/95/EC
Irms (2)
Amperes
(Typ.)
29.0
20.2
15.6
12.4
10.1
8.3
6.9
6.5
5.5
5.2
4.5
4.3
3.4
2.8
2.3
1.8
1) Open Circuit Inductance test parameters: 100KHz, 1.0V, 0.0Adc
2) Irms: DC current for an approximate DT 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 155°C under worst case
operating conditions verified in the end application.
3) Isat Amperes Peak for approximately 15% rolloff (@20°C)
4) Isat Amperes Peak for approximately 30% rolloff (@20°C)
5) Applied Volt-Time product (V-µS) across the inductor. This value represents the
applied V-µS at operating frequency necessary to generate additional core loss
which contributes to the 40°C temperature rise. De-rating of the Irms is required
to prevent excessive temperature rise. The 100% V-uS rating is equivalent to a
ripple current Ip-p of 20% of Isat (30% rolloff option).
Packaging
• Supplied in tape and reel packaging, 800 parts per reel
Isat (3)
Amperes
15% rolloff
31
19
13.5
10.1
8.7
7.4
6.4
5.6
5.1
4.6
4.2
6.8
3.1
2.6
2.1
1.7
Isat (4)
Amperes
30% rolloff
56
34
24
18.7
15.5
13.1
11.4
10.0
9.0
8.1
7.4
3.8
5.5
4.6
3.8
3.1
DCR (mΩ)
max. @
20°C
1.40
2.80
4.70
7.50
11.5
17.1
24.5
27.6
38.9
42.8
58.0
62.9
99.4
149
224
344
Part number definition:
HC8LP-xxx-R
HC8LP = Product code and size
xxx = Inductance in µH. R = decimal point.
If no R is present third character = # of zeros.
-R suffix indicates RoHS compliant
Volts (5)
µSec (VµS)
(ref.)
7.8
4.7
3.4
2.6
4.1
4.8
5.6
6.3
7.1
7.8
8.6
9.3
11.6
13.7
16.8
20.3
HC8LP Series
Power Inductors
Mechanical Diagrams
SIDE VIEW
TOP VIEW
RECOMMENDED PCB PAD LAYOUT
2.70 ± 0 . 55
(2 x)
10.9
Max
3.5 typ
2plcs
10.4
Max
HC8LP-XXX
wwll yy R
3.0 typ
2plcs
4.0 typ
10.4
Max
FRONT VIEW
Dimesional Table
FRONT VIEW
C
PN
A
ref
mm
B
max
mm
L
B
Max
A ref
3.95
2 plcs
ref
R15
2.1
3.5
R39
2.1
3.5
R75
2.1
3.5
1R2
1R9
thru
470
2.1
3.3
2.7
3.5
SCHEMATIC
1
2
Dimensions in Millimeters
wwllyy = Date Code, R = Revision Level
Packaging Information
4.0
1.5 dia
+0.1/-0.0
2.0
1.5 dia
min
A
1.75
A o=10.4 mm
11.5
Bo=11.2 mm
K o=4.3 mm
Bo
11.2
24.0
+/-0.3
HC8-XXX
wwlly y R
Ko
A
SECTION A-A
Ao
16.0
User direction of feed
Packaging Information:
Parts packaged on a
13" Dia. EIA-481 compliant reel.
800 parts per reel.
HC8LP Series
Power Inductors
Core Loss
Irms DERATING WITH CORE LOSS
% Applied Volt-u Seconds
10
30
50
70
90
110
130
150
170
190
% of Irms specified from
zero ripple application
(Maximum)
92
93
94
100kHz
200kHz
300kHz
400kHz
500kHz
95
96
97
98
99
100
Rolloff
OCL vs Isat
100
90
% of OCL
80
70
60
50
40
30
20
10
0
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
% of Isat
PM-4126 3/07
© Cooper Electronic
Technologies 2007
Visit us on the Web at www.cooperbussmann.com
1225 Broken Sound Pkwy. Suite F Boca Raton, FL 33487
Tel: +1-561-998-4100 Toll Free: +1-888-414-2645 Fax: +1-561-241-6640
This bulletin is intended to present product design solutions and technical information that will help the end user with design applications. Cooper Electronic
Technologies reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Cooper
Electronic Technologies 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 Electronic Technologies 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 labeling, can be reasonably expected to result in significant injury to the user.
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