®
HC8 Series
HIGH CURRENT 8
Power Inductors
Description
• Surface mount inductors, 4.0mm height, designed
for higher speed switch mode applications requiring
low voltage and high current
• 155°C maximum total operating temperature
• Design utilizes high temperature powder iron material
with a non-organic binder to eliminate thermal aging
• Inductance offering expanded for applications
requiring higher inductance.
• Inductance Range from 0.175 uH to 47.3 uH
• Current Range from 39.0 to 2.4 Amps
• Frequency Range 1kHz to 500kHz
• RoHS compliant (-R option)
Applications
• Next generation microprocessors
• High current DC-DC converters
• VRM, multi-phase buck regulator
• PC, Workstations, Routers
• Telecom soft switches, Base Stations
Environmental Data
• Storage temperature range: -40°C to +155°C
• Operating ambient temperature range: -40°C to +155°C
(range is application specific)
• Infrared reflow temperature: +260°C for 10 seconds
maximum
Part
Number
HC8-R15
HC8-R39
HC8-R75
HC8-1R2
HC8-1R9
HC8-2R6
HC8-3R5
HC8-4R5
HC8-5R6
HC8-6R9
HC8-8R2
HC8-100
HC8-150
HC8-220
HC8-330
HC8-470
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
0.175
0.390
0.766
1.32
1.90
2.65
3.52
4.52
5.65
6.90
8.27
9.77
15.02
21.40
31.65
47.28
Irms (2)
Amperes
(Typ.)
39.0
28.3
18.8
16.0
12.4
10.2
8.50
8.00
6.70
6.40
5.50
5.20
4.10
3.40
2.70
2.20
Packaging
• Supplied in tape and reel packaging, 800 parts per reel
Option Code
-R
Isat (3)
Amperes
15% rolloff
43
26
18.5
14.4
11.8
10.0
8.7
7.7
6.9
6.2
5.7
5.2
4.2
3.5
2.9
2.4
OPTION CODE
Description
RoHS compliant version
DCR (mΩ)
max. @
20°C
0.80
1.55
3.40
4.70
7.7
11.4
16.5
18.6
26.3
28.9
39.6
43.6
68.6
99.5
154
237
Volts (5)
µSec (VµS)
(ref.)
1.5
2.5
3.5
4.5
5.5
6.5
7.5
8.5
9.5
10.5
11.5
12.5
15.5
18.6
22.6
27.6
Isat (4)
Amperes
30% rolloff
76
45
32.7
25.5
20.9
17.7
15.3
13.5
12.1
10.9
10.0
9.2
7.4
6.2
5.1
4.2
1) Test Parameters: 100KHz, 1.0Vrms
2) Irms Amperes for approximately
∆T
of 40°C above 85°C ambient
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).
It is recommended that the temperature of the part not exceed 155°C under worst
case operating conditions verified in the end application.
Part number definition:
First 3 characters = Product code and size.
Last 3 characters = Inductance in µH. R = decimal point.
If no R is present third character = # of zeros.
wwllyy = (Date Code)
R = (Revision level)
Mechanical Diagrams
TOP VIEW
FRONT VIEW
C
L
FRONT VIEW
TABLE
PN
R15
4.0
Max
A
mm
2.1
2.1
2.1
2.1
2.7
SIDE VIEW
2.70
±
0.55
(2x)
RECOMMENDED PCB PAD LAYOUT
SCHEMATIC
3.5 typ
2plcs
1
10.9
Max
HC8-XXX
wwll yy R
10.4
Max
10.4
Max
R39
R75
3.0 typ
2plcs
A ref
3.95
2 plcs
ref
1R
1R9
thru
470
4.0 typ
2
®
HC8 Series
HIGH CURRENT 8
Power Inductors
Packaging Information
4.0
1.5 dia
+0.1/-0.0
2.0
1.5 dia
min
A
1.75
Ao=10.4 m
m
Bo=11.2 mm
Ko=4.3 mm
11.5
24.0
+/-0.3
11.2
Bo
HC8-XXX
wwlly y R
Ko
SECTION A-A
Ao
16.0
A
Dimensions in Millimeters
User direction of feed
Rolloff
100
90
80
70
OCL vs Isat
% of OCL
60
50
40
30
02
10
0
0
10
20
30
40
50
60
70
80
90
100 110 120 130 140 150 160 170 180 190 200
% of Isat
Core Loss
Irms DERATING WITH CORE LOSS
% Applied Volt-u Seconds
10
84
30
50
70
90
110
130
150
170
190
% of Irms specified from
zero ripple application
86
88
90
92
94
96
98
100
100kHz
200kHz
300kHz
400kHz
500kHz
PM-4120 7/05
© Cooper Electronic
Technologies 2005
Visit us on the Web at www.cooperET.com
3601 Quantum Boulevard Boynton Beach, Florida 33426-8638
Tel: +1-561-752-5000 Toll Free: +1-888-414-2645 Fax: +1-561-742-1178
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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