Technical Data DS4311

Effective September 2017

DRQ

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

3

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

DRQ74-R33-R

0.33

0.294

6.20

18.4

0.0074

1.71

1.176

3.10

9.18

0.0295

3.42

DRQ74-1R0-R

1.00

0.952

5.33

10.2

0.0100

3.08

3.808

2.66

5.10

0.0400

6.16

DRQ74-1R5-R

1.50

1.422

4.96

8.35

0.0115

3.76

5.688

2.48

4.17

0.0461

7.52

DRQ74-2R2-R

2.20

1.986

4.66

7.06

0.0130

4.45

7.944

2.33

3.53

0.0521

8.9

DRQ74-3R3-R

3.30

3.396

3.94

5.40

0.0183

5.81

13.58

1.97

2.70

0.0732

11.6

DRQ74-4R7-R

4.70

5.182

3.34

4.37

0.0254

7.18

20.73

1.67

2.19

0.102

14.4

DRQ74-6R8-R

6.80

7.344

2.60

3.67

0.0418

8.55

29.38

1.30

1.84

0.167

17.1

DRQ74-8R2-R

8.20

8.566

2.53

3.40

0.0441

9.23

34.26

1.27

1.70

0.177

18.5

DRQ74-100-R

10.0

9.882

2.41

3.17

0.0489

9.92

39.53

1.20

1.58

0.196

19.8

DRQ74-150-R

15.0

16.09

2.11

2.48

0.0637

12.7

64.36

1.05

1.24

0.255

25.4

DRQ74-220-R

22.0

21.73

1.75

2.13

0.0925

14.7

86.92

0.874

1.07

0.371

29.4

DRQ74-330-R

33.0

33.01

1.41

1.73

0.143

18.1

132.0

0.702

0.87

0.574

36.2

DRQ74-470-R

47.0

49.64

1.15

1.41

0.216

22.2

198.6

0.573

0.71

0.865

44.4

DRQ74-680-R

68.0

69.67

1.03

1.19

0.265

26.3

278.7

0.517

0.60

1.06

52.6

DRQ74-820-R

82.0

80.95

0.91

1.11

0.345

28.4

323.8

0.453

0.55

1.38

56.8

DRQ74-101-R

100

101.6

0.86

0.99

0.383

31.8

406.4

0.430

0.49

1.53

63.6

DRQ74-151-R

150

150.0

0.69

0.81

0.591

38.6

600.0

0.346

0.41

2.37

77.2

DRQ74-221-R

220

227.0

0.56

0.66

0.907

47.5

908.0

0.279

0.33

3.63

95

DRQ74-331-R

330

335.6

0.45

0.54

1.41

57.8

1342

0.224

0.27

5.66

116

DRQ74-471-R

470

465.3

0.40

0.46

1.74

68.1

1861

0.202

0.23

6.97

136

DRQ74-681-R

680

671.2

0.33

0.38

2.58

81.7

2685

0.166

0.19

10.3

163

DRQ74-821-R

820

812.7

0.31

0.35

2.93

89.9

3251

0.156

0.17

11.7

180

DRQ74-102-R

1000

1009

0.27

0.31

3.89

100

4036

0.135

0.16

15.6

200