HCM1A0503-R35-R datasheet(2/9 Pages) EATON

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Technical Data

10547

Effective August 2016

HCM1A0503

Automotive grade high current power inductors

www.eaton.com/electronics

Product Specifications

Part Number6

OCL1

(μH) ± 20%

FLL2 (μH)

minimum

rms

(A)

sat

(A)

DCR (mΩ)

typical @ +20 °C

DCR (mΩ)

maximum @ +20 °C

K-factor5

HCM1A0503-R20-R

0.20

0.128

15.8

2.1

2.3

1601

HCM1A0503-R22-R

0.22

0.141

15.8

2.1

2.3

1004

HCM1A0503-R33-R

0.33

0.211

11.8

3.9

4.3

918

HCM1A0503-R35-R

0.35

0.224

11.8

3.9

4.3

914

HCM1A0503-R47-R

0.47

0.300

9.2

6.5

7.2

835

HCM1A0503-R68-R

0.68

0.435

8.0

8.2

9.1

713

HCM1A0503-R75-R

0.75

0.48

7.8

8.5

9.4

590

HCM1A0503-1R0-R

1.0

0.64

7.1

8.5

10.4

11.4

569

HCM1A0503-1R5-R

1.5

0.96

5.2

6.8

17.1

18.5

450

HCM1A0503-2R2-R

2.2

1.4

4.5

6.4

22.5

25.0

411

HCM1A0503-3R3-R

3.3

2.1

3.8

5.6

36.4

40.4

332

HCM1A0503-4R7-R

4.7

3.0

3.1

4.2

60.0

239

HCM1A0503-5R6-R

5.6

3.6

2.8

4.0

70.6

235

HCM1A0503-6R8-R

6.8

4.4

2.3

3.8

97.2

212

HCM1A0503-100-R

6.4

2.4

2.3

108

191

1. Open Circuit Inductance (OCL) Test Parameters: 100 kHz, 0.25 V

rms, 0.0 Adc, +25 °C

2. Full Load Inductance (FLL) Test Parameters: 100 kHz, 0.25 V

rms, Isat, +25 °C

3. Irms: DC current for an approximate temperature rise of 30 °C without core loss. Derating is necessary for AC currents.

PCB layout, trace thickness and width, air-flow, 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 operating

conditions verified in the end application.

4. Isat: Peak current for approximately 20% rolloff @ +25 °C

5. K-factor: Used to determine Bp-p for core loss (see graph). Bp-p = K * L * ΔI. Bp-p: (Gauss), K: (K-factor from table),

L: (Inductance in μH), ΔI (Peak to peak ripple current in Amps).

6. Part Number Definition: HCM1A0503-xxx-R

HCM1A0503 = Product code and size

xxx= inductance value in μH, R= decimal point,

If no R is present then last character equals number of zeros

-R suffix = RoHS compliant

Dimensions (mm)

Part marking: 1AXXX=1A=Automotive grade, XXX=inductance value in uH, R=decimal point. If no R is present then last character equals number of zeros

xxxx= Lot code

All soldering surfaces to be coplanar within 0.1 millimeters

Tolerances are ±0.2 millimeters unless stated otherwise

DCR measured from point “a” to point “b”

Color: Grey

Do not route traces or vias underneath the inductor

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