2

Technical Data

4122

Effective February 2017

HC3

High current power inductors

www.eaton.com/electronics

Product specifications

l

rms

2

(amps)

l

sat

3

(amps)

DCR (mΩ) maximum @ 20°C

HC3-R50-R

0.50

78.00

120

0.42

17.33

HC3-1R0-R

1.05

78.00

78

0.42

17.33

HC3-2R2-R

2.05

55.50

60

0.70

26.01

HC3-3R3-R

3.63

42.45

46

1.20

34.65

HC3-4R7-R

4.98

33.80

38

2.17

43.30

HC3-5R6-R

5.68

33.80

34.5

2.17

43.30

HC3-6R0-R

6.52

33.80

30.0

2.17

43.30

1. OCL (Open Circuit Inductance) Test parameters: 300kHz, .25Vrms, 0.0ADC & Isat.

2. DC current for approximately ∆T of 40°C without core loss De-rating is necessary for AC currents.

PCB layout, trace thickness and width, air flow and proximity of other heat generating components

will affect temperature rise. It is recommended that the temperature of the part not exceed 125°C

under worst case conditions verified in the end application.

3. Peak current for approximately 30% rolloff (@20°C).

4. Applied Volt-Time product (V-μs) across the inductor. This value represents the applied V-μs at 300kHz

necessary to generate a core loss equal to 10% of the total losses for a 40°C temperature rise.

5. Part number definition - HC3-xxx-R:

HC3 = Product code and size

-xxx = Inductance value R = Decimal point (if no “R” is present, last character equals number of zeros )

-R Suffix = RoHS compliant

Dimensions–mm

Part number

Height max

HC3-R50-R

18.0

HC3-1R0-R

17.5

HC3-2R2-R

17.5

HC3-3R3-R

17.5

HC3-4R7-R

17.5

HC3-5R6-R

17.5

HC3-6R0-R

17.5

1

2

HC3-xxx

wwllyy R

14.5 typ

25.3 max

30.0 max

22.0

19.0

5.50

5.50

3.0 typ

4.0 typ

HT max

TOP VIEW

RECOMMENDED

PCB PAD LAYOUT

FRONT VIEW

SCHEMATIC

Part marking: HC3-xxx (-xxx= inductance value, R= decimal point,

if no R is present then last character equals number of zeros)

wwllyy= date code, R= Revision level