Technical Data DS4312 Effective December 2015
Supersedes December 2007
Product description
• 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 0.2μH to 47.0μH
• Current Range from 3.65 amps to 95.0 amps
• Frequency Range 1kHz to 500kHz
Applications
• Multi-phase regulators
• Voltage Regulator Modules (VRMs)
• Distributed power systems DC-DC converters
• Desktop and server VRMs and EVRDs
• Point-of-Load (POL) modules
• Field Programmable Gate Array (FPGA) DC-DC
converters
• Battery power systems
• High current power supplies
• Data networking and storage systems
Environmental data
• Storage temperature range (component): -40°C
to +155°C
• Operating temperature range: -40°C to +155°C
(Ambient plus self-temperature rise)
• Solder reflow temperature: J-STD-020D
compliant
HC9
High current power inductors
Pb
2
Technical Data DS4312
Effective December 2015
HC9
High current power inductors
www.eaton.com/elx
Product specifications
Part number6OCL1 (μH) ±15% lrms
2 (amps)
lsat3 (amps) 20%
rolloff
lsat4 (amps) 30%
rolloff
DCR (mΩ)
maximum @ 20°C Volt-μsec5 (V-μs)
HC9-R20-R 0.218 46.7 65 95 0.50 2.87
HC9-R47-R 0.544 33.7 40 57 0.88 4.78
HC9-1R0-R 1.04 23.7 28 41 1.87 6.70
HC9-1R5-R 1.70 21.0 22 32 2.27 8.46
HC9-2R2-R 2.53 17.2 18 26 3.37 10.4
HC9-3R3-R 3.52 14.3 15 22 4.87 12.4
HC9-4R3-R 4.67 13.0 13.2 19.1 5.90 14.4
HC9-6R8-R 7.45 10.3 11.4 15.1 9.40 18.1
HC9-100-R 10.9 8.50 8.6 12.5 14.0 22.0
HC9-220-R 22.4 6.30 6.0 8.7 25.7 31.5
HC9-330-R 34.5 4.42 4.8 7.0 48.8 37.3
HC9-470-R 49.2 3.65 3.9 5.7 72.3 44.8
1. Open Circuit Inductance (OCL) Test Parameters: 100kHz, 1.0Vrms, 0.0Adc, @ +25°C
2. Irms: DC current for an approximately ∆T of 40°C without core loss. Derating is necessary for
AC currents. Pad layout, trace thickness and width, airflow, and proximity of other heat generating
components will affect the temperature rise. It is recommended that the temperature of the part
not exceed 155°C under worst case conditions verified in the end application.
3. Peak current for approximately 20% rolloff @20°C
4. Peak current 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% Vμs rating is equivalent to a ripple current Ip-p of 20% of Isat (30% rolloff option).
6. Part number definition: HC9-xxx-R
HC9= Product code and size
xxx = Inductance in μH. R = decimal point. If no R is present last character equals number of zeros.
-R suffix = RoHS compliant
Dimensions–mm
Packaging information–mm
Supplied in tape and reel packaging, 450 parts per reel, 13” diameter reel.
HC9-xxx-R
HC9-xxx-R
Part marking: HC9= (Product code and size)-xxx=(inductance value
in uH, R= decimal point. If no R is present then last character equals
number of zeros. wwlyly=date code, R=revision level
Tolerances are ±0.2 millimeters unless stated otherwise
Do not route traces or vias underneath the inductor
3
Technical Data DS4312
Effective December 2015
HC9
High current power inductors
www.eaton.com/elx
Rolloff
Core loss
Eaton
Electronics Division
1000 Eaton Boulevard
Cleveland, OH 44122
United States
www.eaton.com/elx
© 2015 Eaton
All Rights Reserved
Printed in USA
Publication No. DS4312
December 2015
Eaton is a registered trademark.
All other trademarks are property
of their respective owners.
HC9
High current power inductors
Technical Data DS4312
Effective December 2015
Life Support Policy: Eaton 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.
Eaton reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Eaton also
reserves the right to change or update, without notice, any technical information contained in this bulletin.
Temperature
t
tP
ts
TC -5°C
Time 25°C to Peak Time
25
°C
Tsmin
Tsmax
TL
TP
Preheat
A
Max. Ramp Up Rate = 3°C/s
Max. Ramp Down Rate = 6°C/s
Solder reflow profile
Reference JDEC J-STD-020D
Profile Feature Standard SnPb Solder Lead (Pb) Free Solder
Preheat and Soak • Temperature min. (Tsmin) 100°C 150°C
• Temperature max. (Tsmax) 150°C 200°C
• Time (Tsmin to Tsmax) (ts)60-120 Seconds 60-120 Seconds
Average ramp up rate Tsmax to Tp3°C/ Second Max. 3°C/ Second Max.
Liquidous temperature (Tl)
Time at liquidous (tL)
183°C
60-150 Seconds
217°C
60-150 Seconds
Peak package body temperature (TP)* Table 1 Table 2
Time (tp)** within 5 °C of the specified classification temperature (Tc)20 Seconds** 30 Seconds**
Average ramp-down rate (Tp to Tsmax)6°C/ Second Max. 6°C/ Second Max.
Time 25°C to Peak Temperature 6 Minutes Max. 8 Minutes Max.
* Tolerance for peak profile temperature (Tp) is defined as a supplier minimum and a user maximum.
** Tolerance for time at peak profile temperature (tp) is defined as a supplier minimum and a user maximum.
Table 1 - Standard SnPb Solder (Tc)
Package
Thickness
Volume
mm3
<350
Volume
mm3
≥350
<2.5mm) 235°C 220°C
≥2.5mm 220°C 220°C
Table 2 - Lead (Pb) Free Solder (Tc)
Package
Thickness
Volume
mm3
<350
Volume
mm3
350 - 2000
Volume
mm3
>2000
<1.6mm 260°C 260°C 260°C
1.6 – 2.5mm 260°C 250°C 245°C
>2.5mm 250°C 245°C 245°C
