2
Technical Data DS4312
Effective December 2015
HC9
High current power inductors
www.eaton.com/elx
Product specifications
Part number
6
OCL
1
(μH) ±15% l
rms
2
(amps)
l
sat
3
(amps) 20%
rolloff
l
sat
4
(amps) 30%
rolloff
DCR (mΩ)
maximum @ 20°C Volt-μsec
5
(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 I
rms
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
