HC7 Series
HIGH CURRENT 7
Power Inductors
Description
RoHS
2002/95/EC
• 155°C maximum total temperature operation
• Surface mount inductors designed for higher
speed switch mode applications requiring
lower inductance, low voltage and high current
• Design utilizes high temperature powder iron material
with a non-organic binder to eliminate thermal aging
• Inductance range from 0.22 uH to 4.81 uH
• Current range from 35.8 to 9.8 Amps
• Frequency range 1kHz to 500kHz
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)
• Solder reflow temperature: +260°C max. for 10 seconds
max.
Part
Number
HC7-R20-R
HC7-R47-R
HC7-1R0-R
HC7-1R5-R
HC7-2R2-R
HC7-3R9-R
HC7-4R7-R
Rated
Inductance
µH
.20
.47
1.0
1.5
2.2
3.9
4.7
OCL (1)
nominal
+/-20% µH
0.220
0.534
1.05
1.73
2.58
3.61
4.81
Irms (2)
Amperes
(Typ.)
35.80
23.40
20.30
14.20
13.00
10.40
9.80
Packaging
• Supplied in tape and reel packaging, 610 parts per reel
Isat (3)
Amperes
15% rolloff
45.8
27.5
19.6
15.3
12.5
10.6
9.2
Isat (4)
Amperes
30% rolloff
86.5
51.9
37.1
28.8
23.6
20.0
17.3
DCR (mΩ)
max. @
20°C
0.67
1.60
2.10
4.30
5.20
7.90
9.00
Volts (5)
µSec
(VµS)
2.27
3.83
5.36
6.90
8.40
10.0
12.6
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.
Units supplied in tape and reel packaging. 13" reels 610 parts per reel.
Carrier tape width = 24 mm. Meets EIA standard
Part number definition:
HC7-XXX-R
HC7 = Product code and size
XXX = Inductance value in uH.
R = Decimal point. If no R is present, third character = #of zeros
-R suffix indicates RoHS compliant
Mechanical Diagrams
TOP VIEW
FRONT VIEW
C
L
SIDE VIEW
Height
Max
HC7-XXX
wwllyy R
13.0
Max
Length
Max
2.60 m
ax
5.10
±0.40
3.0
±
0.25
(2x)
Maximum Dimension
Part Number
HC7-R20-R
HC7-R47-R
HC7-1R0-R
HC7-1R5-R
HC7-2R2-R
HC7-3R9-R
HC7-4R7-R
Height mm
6.0
5.5
5.5
5.5
5.5
5.5
5.5
Length mm
14.25
13.8
13.8
13.8
13.8
13.8
13.8
RECOMMENDED PCB PAD LAYOUT
3.50 typ
2plcs
1
SCHEMATIC
3.50 typ
2plcs
6.50 typ
2
Dimensions in Millimeters.
All dimensions I+/- 0.2 mm unless otherwise specified.
All soldering surfaces are coplanar within 0.15 mm.
wwllyy = Date code R = Revision level
HC7 Series
HIGH CURRENT 7
Power Inductors
Packaging Information
4.0
1.5 dia
+0.1/-0.0
2.0
1.5 dia
min
A
1.75
1
A0= 13 mm
.00
A1= 4.00 mm
B0= 13.00 mm
B1= 14.10 mm
K0= 5.6 mm
K1= 6.0 mm
11.5
B1
B0
HC7-XX X
wwllyy R
24.0
+/-0.3
2
K0
K1
A1
A0
16.00
SECTION A-A
A
User direction of feed
Dimensions in Millimeters
Core Loss
Irms DERATING WITH CORE LOSS
% of Applied Volt-u-Seconds
10
20
30
40
50
60
70
80
90
100 110 120 130 140 150 160 170 180 190 200
% of Irms specified from
zero ripple application
0
10
20
30
40
50
60
70
80
90
100
100kHz
200kHz
300kHz
400kHz
500kHz
Inductance Characteristics
Inductance vs. Idc
5
4.5
4
HC7-R20
3.5
3
L
2.5
(uH)
2
1.5
1
0.5
0
0
6
12
18
24
30
36
42
48
54
60
66
72
78
84
HC7-R47
HC7-1R0
HC7-1R5
HC7-2R2
HC7-3R9
HC7-4R7
(maximum)
DC CURRENT (A)
PM-4116 3/07
© Cooper Electronic
Technologies 2007
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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.
