2

Technical Data

4147

Effective April 2016

DR1040

Shielded power inductors

www.eaton.com/elx

Product Specifications

(μH) ±30%

I

rms

2

(A)

I

sat

2

(A)

DCR (mΩ)

typical

@ 20°C

DCR (mΩ)

maximum

@ 20°C

DR1040-1R5-R

1.35

6.5

10

6.0

8.1

15.5

DR1040-2R5-R

2.4

6.1

7.8

7.0

9.0

12.0

DR1040-3R8-R

3.6

5.5

6.4

9.6

13

9.9

DR1040-5R2-R

5.2

5.4

5.5

14

17

8.3

DR1040-7R0-R

6.8

4.5

4.8

17

20

7.2

DR1040-8R2-R

8.1

3.98

4.6

24

29

6.4

DR1040-100-R

9.6

3.8

4.4

26

35

5.7

DR1040-150-R

14.9

3.1

3.6

37

50

4.7

DR1040-220-R

21.1 ±20%

2.5

2.9

54

73

4.0

DR1040-330-R

32.6

2.2

2.45

69

93

3.3

DR1040-470-R

45.8

1.9

2.1

95

128

2.8

DR1040-680-R

65.3

1.42

1.65

152

183

2.3

DR1040-820-R

87

1.29

1.47

214

260

2.0

DR1040-101-R

101

1.25

1.35

225

304

1.9

DR1040-151-R

148

0.85

1.15

356

430

1.6

DR1040-221-R

216

0.70

0.92

530

640

1.3

DR1040-331-R

323

0.52

0.70

810

1090

1.0

1. Open Circuit Inductance (OCL) Test Parameters: 100 kHz, 0.25 Vrms, 0.0 Adc, +25 ºC

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 125 ºC under worst case operating

conditions verified in the end application.

4. K-factor: K-factor: Used to determine Bp-p for core loss (see graph). Bp-p = K * L * ΔI. Bp-p: (mT), K:

(K-factor from table), L: (Inductance in μH), ΔI (Peak to peak ripple current in Amps)..

5. Part Number Definition: DR1040-xxx-R

DR1040 = 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: inductance value in uH. R = decimal point. If no R is present then last character equals number of zeroes.

wwlly = date code, R = revision level

Do not route traces or vias underneath the inductor