2

Technical Data DS4311

Effective September 2017

DRQ

Dual winding, high power density, shielded drum core power inductors

www.eaton.com/electronics

Product specifications

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

Parallel: (1,2 -4,3) Series: (1-4) tie (2-3)

2. RMS current for an approximate DT of 40 °C without core loss.

It is recommended that the temperature of the part not exceed +125 °C.

3. Peak current for approximately 30% roll-off at +20 °C

4. DCR limits @ +20 °C

5. Applied Volt-Time product (V-µs) across the inductor. This value represents

the applied V-µs at 100 kHz necessary to generate a core loss equal to 10%

of the total losses for a 40 °C temperature rise.

6. Turns Ratio (1:3):(2-4) 1:1

7. Part number definition: DRQxxx-yyy-

- DRQxxx = product code and size,

- yyy = inductance value in µH,

- R = decimal point. If no R is present, third character = # of zeros

- “-R” suffix = RoHS complian

Part Number

Rated

Inductance

(µH)

Parallel Ratings

Series Ratings

±20%

(µH)

I

rms

2

(A)

I

sat

3

(A)

Peak

typ.

µ-sec

±20%

(µH)

I

rms

2

(A)

I

sat

3

(A)

Peak

typ.

µ-sec

DRQ73-R33-R

0.33

0.306

6.19

14.4

0.0074

1.98

1.224

3.10

7.18

0.0296

3.96

DRQ73-1R0-R

1.00

0.992

5.25

7.97

0.0103

3.56

3.968

2.63

3.99

0.0411

7.12

DRQ73-1R5-R

1.50

1.482

4.64

6.52

0.0132

4.36

5.928

2.32

3.26

0.0527

8.72

DRQ73-2R2-R

2.20

2.070

4.11

5.52

0.0167

5.15

8.280

2.06

2.76

0.0669

10.3

DRQ73-3R3-R

3.30

3.540

3.31

4.22

0.0259

6.73

14.16

1.66

2.11

0.1035

13.5

DRQ73-4R7-R

4.70

4.422

3.09

3.78

0.0297

7.52

17.69

1.55

1.89

0.1188

15.0

DRQ73-6R8-R

6.80

6.480

2.55

3.12

0.0435

9.11

25.92

1.28

1.56

0.1742

18.2

DRQ73-8R2-R

8.20

8.930

2.19

2.66

0.0592

10.7

35.72

1.10

1.33

0.2368

21.4

DRQ73-100-R

10.0

10.30

2.08

2.47

0.0656

11.5

41.20

1.04

1.24

0.2623

23.0

DRQ73-150-R

15.0

15.01

1.83

2.05

0.0844

13.9

60.04

0.916

1.03

0.339

27.8

DRQ73-220-R

22.0

22.65

1.62

1.67

0.107

17.0

90.60

0.811

0.83

0.429

34.0

DRQ73-330-R

33.0

34.41

1.31

1.35

0.166

21.0

137.6

0.653

0.68

0.665

42.0

DRQ73-470-R

47.0

48.62

1.08

1.14

0.241

24.9

194.5

0.542

0.57

0.965

49.8

DRQ73-680-R

68.0

68.91

0.89

0.96

0.358

29.7

275.6

0.444

0.48

1.43

59.4

DRQ73-820-R

82.0

80.37

0.86

0.89

0.384

32.1

321.5

0.430

0.44

1.54

64.2

DRQ73-101-R

100

101.4

0.73

0.79

0.527

36.0

405.6

0.367

0.39

2.11

72.0

DRQ73-151-R

150

150.9

0.58

0.65

0.851

44.0

603.6

0.289

0.32

3.41

88.0

DRQ73-221-R

220

223.3

0.52

0.53

1.05

53.5

893.2

0.260

0.27

4.20

107

DRQ73-331-R

330

325.5

0.42

0.44

1.59

64.5

1302

0.211

0.22

6.36

129

DRQ73-471-R

470

465.8

0.35

0.37

2.36

77.2

1863

0.173

0.18

9.44

154

DRQ73-681-R

680

676.5

0.29

0.31

3.47

93.1

2706

0.143

0.15

13.88

186

DRQ73-821-R

820

821.7

0.27

0.28

3.93

103

3287

0.134

0.14

15.72

206

DRQ73-102-R

1000

995.0

0.26

0.25

4.34

113

3980

0.128

0.13

17.36

226