2

Technical Data

DS4312

Effective December 2015

HC9

High current power inductors

www.eaton.com/elx

Product specifications

l

rms

2

(amps)

rolloff

rolloff

DCR (mΩ)

maximum @ 20°C

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

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