Description
• Surface mount inductors, 4.0mm height,
designed for higher speed switch mode
a
pplications 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
• 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, 800 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 (VµS)
µH +/-20% µH (Typ.) 15% rolloff 30% rolloff 20°C (ref.)
HC8-R15-R 0.15 0.175 39.0 43 76 0.80 1.5
HC8-R39-R 0.39 0.390 28.3 26 45 1.55 2.5
HC8-R75-R 0.75 0.766 18.8 18.5 32.7 3.40 3.5
HC8-1R2-R 1.2 1.32 16.0 14.4 25.5 4.70 4.5
HC8-1R9-R 1.9 1.90 12.4 11.8 20.9 7.7 5.5
HC8-2R6-R 2.6 2.65 10.2 10.0 17.7 11.4 6.5
HC8-3R5-R 3.5
3.52
8.50 8.7 15.3 16.5 7.5
HC8-4R5-R 4.5 4.52 8.00 7.7 13.5 18.6 8.5
HC8-5R6-R 5.6 5.65 6.70 6.9 12.1 26.3 9.5
HC8-6R9-R 6.9 6.90 6.40 6.2 10.9 28.9 10.5
HC8-8R2-R 8.2 8.27 5.50 5.7 10.0 39.6 11.5
HC8-100-R 10.0 9.77 5.20 5.2 9.2 43.6 12.5
HC8-150-R 15.0 15.02 4.10 4.2 7.4 68.6 15.5
HC8-220-R 22.0 21.40 3.40 3.5 6.2 99.5 18.6
HC8-330-R 33.0
31.65 2.70 2.9 5.1 154 22.6
HC8-470-R 47.0 47.28 2.20 2.4 4.2 237 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).
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
HC8 Series
HIGH CURRENT 8
Power Inductors
Mechanical Diagrams
TOP VIEW
10.9
Max
10.4
Max
HC8-XXX
wwll yy R
10.4
Max
SIDE VIEW
2.70 ± 0.55
(2x)
RECOMMENDED PCB PAD LAYOUT
4.0 typ
3.0 typ
2plcs
3.5 typ
2plcs
1
2
SCHEMATIC
wwllyy = Date code R = Revision level
xxx = Inductance value
