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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
Applications
? Next generation microprocessors
? High current DC-DC converters
? VRM, multi-phase buck regulator
? PC, Workstations, Routers
RoHS
2002/95/EC
Packaging
? Supplied in tape and reel packaging, 800 parts per reel
? 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
HC8-R15-R
HC8-R39-R
HC8-R75-R
HC8-1R2-R
HC8-1R9-R
HC8-2R6-R
HC8-3R5-R
HC8-4R5-R
HC8-5R6-R
HC8-6R9-R
HC8-8R2-R
HC8-100-R
HC8-150-R
HC8-220-R
HC8-330-R
HC8-470-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
0.175
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
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
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
DCR (m ? )
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
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).
Mechanical Diagrams
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:
HC8-XXX-R
HC8 = 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
10.9
Max
TOP VIEW
HC8-XXX
10.4
Max
FRONT VIEW
C
L
4.0
Max
FRONT VIEW
TABLE
A
PN
mm
R15 2.1
R39 2.1
SIDE VIEW
2.70 ± 0.55
(2x)
RECOMMENDED PCB PAD LAYOUT
3.5 typ
2plcs
1
SCHEMATIC
wwll yy R
R75
2.1
3.0 typ
2plcs
10.4
Max
3.95
2 plcs
ref
A ref
1R
1R9
thru
470
2.1
2.7
4.0 typ
2
wwllyy = Date code R = Revision level
xxx = Inductance value
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