Description
• 155°C maximum total temperature operation
• Surface mount inductors designed for higher
speed switch mode applications requiring
l
ower 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.
Packaging
• Supplied in tape and reel packaging, 610 parts per reel
Part Rated OCL (1) Irms (2) Isat (3) Isat (4) DCR (mΩ) Volts (5)
Number Inductance nominal Amperes Amperes Amperes max. @ µSec
µH +/-20% µH (Typ.) 15% rolloff 30% rolloff 20°C (VµS)
HC7-R20-R .20 0.220 35.80 45.8 86.5 0.67 2.27
HC7-R47-R .47 0.534 23.40 27.5 51.9 1.60 3.83
HC7-1R0-R 1.0 1.05 20.30 19.6 37.1 2.10 5.36
HC7-1R5-R 1.5 1.73 14.20 15.3 28.8 4.30 6.90
HC7-2R2-R 2.2
2.58 13.00 12.5 23.6 5.20 8.40
HC7-3R9-R 3.9 3.61 10.40 10.6 20.0 7.90 10.0
HC7-4R7-R 4.7
4.81 9.80 9.2 17.3 9.00 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
HC7 Series
HIGH CURRENT 7
Power Inductors
Mechanical Diagrams
Maximum Dimension
RECOMMENDED PCB PAD LAYOUT
6.50 typ
3.50 typ
2plcs
3.50 typ
2plcs
1
2
SCHEMATIC
TOP VIEW
HC7-XXX
wwllyy R
13.0
Max
Length
Max
2.60 max
Height
Max
5.10
±0.40
C
L
FRONT VIEW
SIDE VIEW
3.0 ± 0.25
(2x)
Dimensions in Millimeters.
All dimensions I+/- 0.2 mm unless otherwise specified.
All solder
ing surf
aces are coplanar within 0.15 mm.
Part Number Height mm Length mm
HC7-R20-R 6.0 14.25
HC7-R47-R 5.5 13.8
HC7-1R0-R 5.5 13.8
HC7-1R5-R 5.5 13.8
HC7-2R2-R 5.5 13.8
HC7-3R9-R 5.5 13.8
HC7-4R7-R 5.5 13.8
wwllyy = Date code R = Revision level
